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1. IAHRIS v2 2 USER S MANUAL 2010 REMEMBER v PARAMETER Each variable that numerically makes possible the characterization of the components of the flow regime with the highest environmental meaning INDICATOR Relationship between the values of the same parameter in the natural and the altered condition It allows the quantification of the differences between the reference status natural flow regime and anv other altered flow regime mic H WAS THE CRITERIA TO SELECT THE PARAMETERS The paradigm of the flow regime already establishes the most environmentally meaningful aspects of the flow regime Links of these aspects to the key elements of the fluvial ecosystem may be summarized as follows e Magnitude determines the general availability of water in the freshwater ecosystem e Frequency of a flow event in an interval of time determines the variability of the flow regime the ecological and geomorphological dynamics and thus the diversity e Duration or interval of time associated with certain flow conditions in extreme situations floods and droughts duration is closely linked to resilience thresholds of the different species e Seasonality or regularity of the flow event in a season determines closely and with synchrony the life cycles of the different species fluvial estuarine and coastal e Rate of change determines the velocity of change of the flow values affecting the Capa
2. April 2010 IAHRIS 2 2 NDICES DE ALTERACION NDICATORS OF HVDROLOGIC IDROLOGICA EN RIO LTERATIONIN RIVER CAROLINA MARTINEZ SANTA MARIA JOSE A FERNANDEZ YUSTE FERNANDO MAGDALENO MAS Title Indicators of Hydrologic Alteration in RiverS IAHRIS User sManual Version 2 2 ISBN 978 84 693 7959 2 This manual can be used copied and distributed freely with indication of the following reference Mart nez Santa Mar a C et al 2010 IAHRIS 2 2 Indicators of Hydrologic Alteration in Rivers User s Manual Authors Edition Methodology Carolina Martinez Santa Ma ra Jos Anastasio Fem ndez Yuste Software INCLAM S A User sManual Carolina Martinez Santa Ma ra Jos Anastasio Fem ndez Yuste Femando Magdaleno Mas AHRIS is a software financed by the Spanish Ministry of the Environment with the technical advice of CEDEX Copyright O Ministry of the Environment Polytechnic University of Madrid IAHRIS isa free software Any commercial utilization of IAHRIS is totally forbidden Authors and editors are not responsible of the mistakes or flaws of the software User must check the results of IAHRIS and both its use and application will be of his entire responsibility 2 ACKNOWLEDG MENTS Authors first wish to express their gratitude to Inmaculada Garcia Cob who set the bases of this software and had the ability to understand and interpret our ideas and also to answer always with a smile our neve
3. Altered regime Habitual parameters for the characterization ofthe regime no contemporary Altered regime Habitual parameters for the characterization ofthe regime Altered regime Habitual parameters for the characterization of the regime no contemporary FLOW REGIME CHARACTERIZATION INATURAL AND ALTERED REGIME AVERAGE VALUES OF THE FLOW DURATION CURVES Natural regime Average values of the flow durationcurves Altered regime Indicators of Hydrologic Alteration Habitual Values Altered regime Indicators of Hydrologic Alteration Habitual Values Altered regime Indicators of Hydrologic Alteration Habitual Values no contemporary Altered regime Indicators of Hydrologic Alteration Floods and Droughts ALTERATION Altered regime Characterization of heavily modified water bodies P10 P90 indicator Altered regime Characterization of heavily modified water bodies IAH MMA indicator Altered regime Characterization of heavily modified water bodies IAH MMA indicator Altered regime Characterization of heavily modified water bodies IAH MMA indicator f Altered regime Indicator IAH MMA to bodys of water with high hydrological alteration PH ENVIRONMENTAL FLOW REGIME RAC SCENARIO SELECTED VOLUMES IRONMENTAL FLOW REGIME RAC SCENARIO SELECTED VOLUMES Table 6 List of reports potentially offered by IAHRIS If only monthly data are available REMEMBER e The software does never offer simulta
4. the adequate format for IAHRIS would be chosen Microsoft Excel Librol To make the user familiar with the process of 158 Archivo Edici n Ver Insertar Formato 1G id B Y 24 offered Figure shows the Excel sheet containing creation of csv files in Excel a practical case is Arial 210 si NZ ll the data in the valid structure D10 Kk A B C _1 JDIARIO NATURAL GALLEGO First line declares the Periodicity of the data Type 2 01 10 1945 13 25 2 3 02 10 1945 13 25 and Code of the Point each of them in a column _4 03 10 1945 13 25 and in capital letters In this case these are DAILY _5 04 10 1945 13 25 I I I 05 10 1945 13 25 data in NATURAL regime and with the point code s 06 10 1945 12 6 GALLEGO _8 07 10 1945 4 9 08 10 1945 4 6 The rest of lines include the date and flow data 09 10 1945 4 A 40 SANA AGE 2 each of them in a different column Figure 6 Sample of data file prepared with Excel 29 IAHRIS v2 2 USER S MANUAL 2010 Once the file is completed the user must save the file in the format csv This is fulfilled by opening the tab Save as offered by Excel and then choosing CSV The name employed by the user to save the files is totally free although the following sequence is recommended POINTCODE_PERIODICITY_REGIMETYPE_ALTERATIONCODE csv Thus the file name identifies undoubtedly the information included in it and makes cons
5. LAHsO 5 If this condition is not reached no classification is assigned The Reference handbook contains the criterion used in the special case of six indicators with IAHSO 5 criterion Cla For the environmental flow regime scenarios definition o Monthly volumes hm3 and daily flows m3 s corresponding to a specific environmental flow regime User can generate by an interactive sheet of an Excel book so many scenarios of environmental flows as he wishes to study o Annual volumes hm in natural and environmental regime o 12 parameters to characterize low flows If the user introduces natural daily flows IAHRIS calculate a set of 12 parameters to define these critical conditions in order to use them in the establisnment of low flow thresholas in the environmental regime 16 All these results including numerical tables and graphics are offered by IAHRIS in reports ordered as sheets of an Excel book Table 3 shows the list of reports offered by IAHRIS LIST OF REPORTS NATURAL REGIME CHARACTERIZATION OF THE INTRA ANNUAL VARIABILITY VARIABILITY CHARACTERE ATION OF THE TERED REGIME CHARACTERIZATION OF THE INTRA ANNUAL VARIABILITY NATURAL REGIME HABITUAL PARAMETERS FOR THE CHARACTERIZATION OF THE REGIME Natural regime Habitual parameters for the characterization of the regime f TERED REGIME HABITUAL PARAMETERS FOR THE CHARACTERIZATION OF THE REGIME Altered regime Habitual parameters for the charac
6. NATURE The data be daily or monthly could be linked to natural or altered regimes The natural regime is unique since two series could be available one with daily data and the other with monthly entries Different altered regimes could be considered as many as the user has data on How does the type of regime influence the results It is essential having the whole natural series at least with 15 years of data not necessarily consecutive If an altered series at least 15 years long is not entered in the software IAHRIS will not be able to offer Indicators of Alteration CONTEMPORARY CHARACTER That is the data contained in the natural and altered series linked to a point in the river is referred to the same period of time How does the contemporary character influence the results In an ideal situation where the most detailed results may be offered by IAHRIS the user would have contemporary series natural and altered at least 15 years long Then the software would offer for each regime the 19 parameters table 1 and the 21 Indicators of Alteration table 2 plus the 3 Indicators of Global Alteration for habitual values floods and droughts Nevertheless when the natural and altered series do not have 15 contemporary years or more or still being contemporary when the user does not make use of this circumstance in both cases IAHRIS would 59 IAHRIS v2 2 USER S MANUAL 2010 identify the situation as NON CONTEMP
7. O Ms O a a D ais O a 19971999 w CD so LI a vc e Aus a 1988 1989 CD 50 LI a wc e Mns LI 19891990 w CD 50 LI a wc e ays L a 1990 1991 w CD v 5 LI a wc e ans L 3 1991 1992 w CD iv so L a wc ei Aa a 19921993 w CD v Aso LI a wc M aus O a Legend 19331994 w CD WI mso O a wc ai D a 194155 wo M xo X we M Xs D C Whole Year 199519966 vo vi 50 O a wc M MW oO a l Incomplete Year 199611997 CD FJ 50 a vc i As a i 1997199 j ks O x vc a D a cD Compute by Daily Values 18881999 CD F gs O a we b Mus u SD Year without Data 19992000 CD j Zso LI a wc a CO Contemporary Year 2000 2 Ivi v 5 man ec 89 U N vc D NCO No Contemporary Year NS Without Serie Attach 20 19 19 0 0 0 19 19 0 0 0 AREA OF RESULTS It occupies the third lowest area of the viewer and it shows the list of reports that the software is capable of doing That list varies accordingly to the information available for the point under analysis Reports REPORT 1 INTERANNUAL VARIABILITY NATURAL REGIME IREPORT 2 INTRANNUAL VARIABILITY NATURAL REGIME IREPORT 4 PARAMETERS NATURAL REGIME IREPORT 6a FLOW DURATION CURVE NATURAL REGIME IREPORT 3 ENVIRONMENTAL FLOW REGIME RAC Calculate On the right hand after the software checks the data and links available to fulfil the necessary calculations the button of CALCULATE which must be
8. see DECLARE THE PONT In this case the user must select Eemplos Declare the the Point e Press Points Management e Press Add Point e Enter the Point Code PUNTO_PRUEBA e Enter Description additional information for the user Maximum 20 characters Select Project Ejemplos e Press Accept It is very important to be sure the Point Code is exactly linked to the Code declared in the first line of the data files 52 Declare the Alteration Press Alterations Management Press Add Alteration Enter the Alteration Code ALTER_PRUEBA Enter Description additional information for the user Maximum 20 characters Press the display list of the Associated Point and select PUNTO_PRUEBA Press Accept 2 It is very important to be sure the Alteration Code is exactly linked to the Code declared in the first line of the altered data files IAHRIS Declare the series Press Series Management Press Add Data Series Press Examine and explore till finding the folder with the csv data files Mark one of the files for instance PUNTO PRUEBA DATOS DIARIO NATURAL csv and press the button Load when it becomes active Press again Examine and load the file PUNTO PRUEBA DATOS DIARIO ALTERADO csv Close the window Select Point In the window Point Data mark the point PUNTO PRUEBA Select the first month of the hydrological year Select Alteration Press Calculate The windows Code Description and
9. 19 0 0 0 The matrix shows for the series and hydrological years available the information contained in the database For any hydrological year and for any type of series monthly or daily natural or altered the matrix indicates if the series includes all the data in the year or not In relation to the monthly series natural or altered the years signalled in the matrix could not coincide with those registered in the database which only contain the monthly volumes entered by the user As for the calculations the monthly series for any regime are fulfilled by accumulation of the volumes from the daily average flows available in that regime for those months where daily data are available for all the days in the month 45 IAHRIS v2 2 USER S MANUAL 2010 When all necessary daily data are not available in a month but still there exists monthly data on the accumulated volume this will be taken from the monthly series previously entered in the database For this reason and in relation to the monthly data the software indicates if all the monthly data for a hydrologic year have been obtained Also if they were calculated from the daily flows according with the legend CD included too in the window Apart from the available data the matrix shows the data that are going to be used in the calculations First of all in order for the data of a series to be utilized should 15 complete years exist be those or n
10. 1904 5 13 25 02 10 1971 20 194 5 12 14 59 12 21 91 03 10 1945 13 25 03 10 1971 20 1546 1 16 27 2325 55 25 04 10 1971 20 1463 2 15 52 2532 54 113 25 05 10 1071 20 1346 3 17 32 13 112 05 10 1971 20 194634 83 51 54525 B5 16 3 1946 5 85 34 53 H073 3 10 22 Figure 5 Sample of csv files valid for use in the software 28 HOW CAN BE THE DATA ALES EASILY GENERATED REMEMBER It should be reminded that csv v The user must analyze the file data fil n il nerat ith S as De ss qne sq IM characteristics and decide the most KO convenient editor to generate the csv file create a spreadsheet following the with the according structure to be read by recommendations of the former section he ON ara considering the unnecessary introduction of the semicolon as separator since this role is played by the different columns of the spreadsheet In order for IAHRIS to run successfully the user must verify in his PC the role of the semicolon as list separator and the date format as dd MM yyyy This check is to be fulfilled by entering in Control Panel Configuration Options Personalize The tab Numbers shows among other elements the list separator recognized by the system If the semicolon is not selected the options panel should be displayed and this character would be chosen In the tab Date the format may be verified and if necessary
11. Flushing flood Q5 x Coefficient of variation of the maximun daily flows along the year CV Qc Variability n 5 Coefficient of variation of the flushing flood series CV 0 5 0 14 Seasonalitv Average number of days in the month with q 2 Q 5 nat See table and graph below Duration Maximum number of consecutive days in the year with q Q 5 nat 35 00 The book of results includes for the practical case incorporated twelve reports number 1 1a 2 3 4 5 6 7a 7d 8 8a and 9 and the presentation interface Table 6 showed the range of reports which the software can elaborate This table is shown below once more to allow the user an easy interpretation of this chapter The user may become familiar with the content of the reports by using those generated by IAHRIS with the data of the practical cases included in the database 61 IAHRIS v2 2 USER S MANUAL 2010 LIST OF REPORTS s NATURAL REGIME CHARACTERIZATION OF THE INTERANNUAL VARIABILITY ALTERED REGIME CHARACTERIZATION OF THE INTERANNUAL VARIABILITY INATURAL REGIME CHARACTERIZATION OF THE INTRA ANNUAL VARIABILITY VARIABILITY CHARACTERE ATION OF THE ALTERED REGIME CHARACTERIZATION OF THE INTRA ANNUAL VARIABILITY NATURAL REGIME HABITUAL PARAMETERS FOR THE CHARACTERIZATION OF THE REGIME Natural regime Habitual parameters for the characterization of the regime ALTERED REGIME HABITUAL PARAMETERS FOR THE CHARACTERIZATION OF THE REGIME
12. POINT declaration The CODE assigned to this point should be used as the necessarv information in all the series analvzed to studv the flow regime in that point Furthermore this will be the code of identification of the point in the different views and reports developed by the software Thus the election of the Code must be carefully done and it should always be considered when the data files are generated since it will be necessarily introduced in the first line of all these files This way once the files are imported into the database they will be automatically linked to the associated point The software only reads csv files These files may be generated with different editors and very easily with Excel selecting the option referred to this file type in the tab Save as Type under the option Save As It is important to check i there are no blank lines and ii all the lines contain the value and date When Excel is used it is recommendable to revise the csv files generated so as to verify they commit the necessary requirements for IAHRIS On some occasions Excel adds blank lines at the end of the csv files making the file useless for IAHRIS The software rejects any file not strictly structured after those formal requirements 31 THE SOFTWARE i HRSTAPPROACH i AREA OFDATA DECLARATION i AREA OF SELECTION OF POINTS AND SERIES i AREA OFDATA INFORMATION i AREA OF RESULTS D PRACTICAL CASE 32 HRS
13. The Delete of an alteration means the EJEMPLO1 Delete of all the series linked to this EJEMPLO2 alteration It contains on the left a pull down list in order to select any of the Points previously declared The selection of one of these points will enhance its appearance showing it on a blue background and on the list on its right the Alterations linked to it if any will be displayed Selecting one of these it will also show a blue background and the button Delete situated on the lower right area of the window will become active in order to allow the erase from the database As it is indicated on the own window the removal of a point means the removal of all the alterations and series linked to this point Finally in the upper right area of the window there exists a button to exit the window and go back to the main window 39 IAHRIS v2 2 USER S MANUAL 2010 IMPORTANT Y The CODE assigned to every POINT and the CODE assigned to every ALTERATION must necessarily appear in the first line of the csv file containing the associated data Only in this way the database will link those data to their associated POINT or ALTERATION SERIES MANAG EMENT Similarly managed to the former it is designed to add or delete from the database a temporal series It includes the following options Add series This command allows the addition of a temporal series to the database in all cases this series sh
14. a scientific approach the transcendence of the flow regime as a linking element of the river ecosystem has been widely recognized reaching its maximum expression with the publication of the natural flow regime paradigm the whole range of intra and interannual vanability of the flow regime with its associated characteristics of magnitude seasonality duration frequency and rate of change is critical to maintain the natural biodiversity and the integrity of the aquatic ecosystems Poff et al 1997 Connotations of this axiom are immediate the success in the conservation of the biodiversity and functioning of our rivers depend on our ability to know protect and or restore the main components of the natural flow regime Public agents dealing with river management need to know the status of the most relevant environmental components of the flow regime Only from this knowledge it is possible to formulate adequate diagnosis to establish management politics that allow advances in the consecution of the good ecological status Also for the water bodies eventually designated as heavily modified it is necessary to characterize both the situation of its flow regime and its optimum hydrological potential compatible with the conditions that enhance this status JIWHATIS IAHRIS Indicators of Hydrologic Alteration in RiverSis a software designed to obtain Parameters that characterize the flow regime both the na
15. analyzed element 2 Establish the reference status i e the values of these variables in a scenario of minimum alteration 3 Calculation of the Ecological Quality Ratios EQR as the ratios between the values of the variables for the real and the reference scenarios Once accepted the role of the natural flow regime as most determinant for the integrity of the fluvial ecosystem and being the necessary tools parameters ready for the quantification of the most meaningful environmental aspects of the flow regime it is time for the formulation of a set of indicators to assess in the most objective way the degree of alteration of a regulated regime purely altered or environmental from the natural regime The similarity or difference will determine the real or potential integrity of the river EQR clo 1 Attending to CIS WDF High status or Cam io orvon minor deviason recommendations 2003 for the analysis of the EQR figure Good status Wl Slight deviation from RC 1 most INDICATORS OF Moderate status Moderne deviation from RC ALTERATION have been defined as the ratios between the parameter values in the Bad status altered and in the natural flow regimes Figure L Recommendations of CIS WFD for the Ecological Quality Ratio Table 2 shows the correspondence between the Indicators of Hydrologic Alteration already calculated by IAHRIS and the aspects of the flow regime whose alterati
16. flow series Contains data associated to the natural flow regime In every point of the river used for the analysis a maximum of two series may be entered in the software one with monthly volumes and the other one with daily flows The software requires a minimum length of fifteen complete years with monthly and daily data of the natural flow regime e ALTERED flow series Contains data associated to an altered flow regime This regime can be motivated by i An abstraction or regulation of the river throughout a number of years i A simulated scenario of management from a hydraulic infrastructure a simulated scenario associated to an environmental flow regime or any other hypothesis derived from the hydrological planning of the system The software can run in every point of the analysis as many altered flow regimes as the user wishes to study For all these regimes a maximum of two series would be entered one with monthly volumes and a second one with daily flows The data entered in the software determines the results Particularly the results depend on the data periodicity daily or monthly and the contemporary character of the natural and altered flow regime that are being compared The ESSENTIAL In order for the software to work successfully at least a daily or monthly natural flow data series must be entered with a minimum length of fifteen complete years not necessarily consecuti
17. of the altered regime Intra annual variability For the three types of year wet normal dry and following the criteria obtained with the natural flow regime the median monthly volume for every month is calculated using the data associated to the altered regime Nineteen parameters numerical variables that characterize the most meaningful aspects of the flow regime o Four parameters for the characterization of the habitual values of the regime o Eight parameters for the characterization of the flood events o Seven parameters for the characterization of the drought events Flow Duration Curve 14 2 For the characterization of the alteration in contemporaw regimes Indicators of alteration generally calculated as the ratio between the value of the parameter in the altered regime and the value of the same parameter in the natural regime Twenty one individual indicators every indicator evaluates the alteration of a parameter o Six indicators for the characterization of the habitual values of the regime o Eight indicators for the characterization of the flood events o Seven indicators for the characterization of the drought events Three global indicators every indicator evaluates the alteration of a component it considers globally the alteration of the parameters used for the characterization of that component It synthesizes the results given for the twenty one individual indicators o Indi
18. order for the user to become familiar with the software this is installed incorporating in the database two different examples in the project EJEMPLOS CODE DATA POINT ALTERATION NATURAL ALTERED EXAMPLE 1 EJEM1 ALTERA Daily Daily 1973 74 to 2001 02 1973 74 to 2001 02 18 years 18 years EXAMPLE 2 EJEMPLO2 EJEM2 ALTERA Daily Daily 1963 64 to 1997 98 1974 75 to 1997 98 23 years 23 years Example 1 includes contemporary daily data Example 2 allows the activation of the checks so as to work with contemporary data daily and monthly only daily or only monthly or with all the data independently of its contemporary profile Two Excel files are provided DATOS EJEMPLO1 xls DATOS EJEMPLO2 xls Each file includes the natural and altered series the user may find them in C Program Files IAHRIS Ejemplo Thus the user may develop an entire process from the generation of the csv files till all the required declarations for the database point alteration series finishing with the calculations and the generation of the reports The installation software creates those files in the folder EJEMPLO installed in the same directory where the user has located the software default C Program Files AHRIS In order to make easier the first approach to IAHRIS the process driving to generation of the results is shown below Results are referred to daily data contemporary for the natural and th
19. pressed to perform them gets active AREA OF DATA BASE MANAGEMENT This menu allows you to import export data bases one user to another OTHERS MENUS Manuals Idioma Language This menu allows you to e Select the language Spanish English e Load the User s Manual and the Methodological Reference Manuals There are three Reference Manuals e Indicators of Hydrological Alteration about characterization of flow regime and assessment of hydrologic alteration e Indicatorof heavily modified water bodies 35 IAHRIS v2 2 USER S MANUAL 2010 e RAC Methodology about environmental flow regime methodology scenarios definition and monthly volumes assessment area OF DATA DECLARATION REMEMBER The first step is to define the PROJECT by selecting between existing o declarating new one the second step is to declarate the POINT of calculus Add Point If there are data of Alterations available the third step will be declaring the Alteration Add Alteration Then if the CSV files are ready with the data series it is necessary to load the SERIES in the software database Add Series PROJ ECT MANAGEMENT It is designed to add a new project A project is the main reference of a specific analysis It includes one o several points of calculus with their alterations and data series associated The user must provide for the project in which we will work a If the project has already been declared the u
20. so a message will emerge showing this circumstance and offering 40 2 two options to the user i erase all the information previously loaded and include then all the information of the selected file or ii cancel the loading operation In any other case the information included in the file will be entered Loading of information from a csv file is fulfilled line to line checking the formats of dates and values and according to the following recommendations Should any mistake be detected during the loading process a message will emerge This message will indicate the flaw and the database will be left in the former status to the loading operation Delete series A temporal series may be totally erased from the associated database Once the option is selected the following window will emerge Delete data serie Select the point and Delete the series linked to it 15 06 15 06_3 VIVAS125 A VIVAS125 1 CIDACOS288 EJEMPLOT EJEMPLO2 Natural Series Altered Series Select Alteration m Operating on the left list prepared for the Selection of a Point by the user in order to delete one or any of the associated series the Point will be displayed on a blue background The combo box prepared for the Selection of an alteration with the set of alterations linked to the point if any will be filled This way one of those alterations can be selected At the same time all the buttons desig
21. 10 Maximum number of consecutive days DURATION in the year with q gt Q 5 Hood duration P11 Average number of days in the month SEASONALITY ith q gt Q 5 12 values one foreach month P12 Average of the minimum daily flows Qs P13 along the year Q95 P14 Ordinary drought discharge Q 95 Coefficient of variation of the minimum CV Qs P15 MINIMUM daily flows along the year VALUES of the Coefficient of variation of the ordinary daily flows droughts series CM Q957 PIS in the year with q lt Q 95 OS Average number of days in the month with a daily flow equal to zero 12 values one foreach month P18 wg Bee moth i valuesfone foreach month 19 SEASONALITY with q lt Q 95 12 values one foreach month P19 Table 1 Range of parameters P1 P19 forthe characterization of natural regimes and contemporary altered regimes Table 2 is also presented once more including the range of Indicators of Alteration offered by the software The Methodological Reference Manual offers the definitions and specifications for each indicator Independently of its reading the folowing two recommendations should be considered All the Indicators referred to Habitual Values are calculated separately according to the type of year As a resume of the alteration the weighted value is offered 56 e The indicators IAH14 IAH20 and IAH21 are specified at a monthly level and the annual average of those monthl
22. 2 and P4 characterize the weighted year Thus the isolated characterization of these parameters is necessary for every type of year considered in the analysis For instance estimating PI requires the calculation of Pl wet Pl normal and P1 dry which respectively characterize the wet normal and dry years These three values are aggregated in PI weighting the percentage of each year type in the series 25 for wet and dry years and 50 for normal years P1 0 25 Plwet Pldry 0 50 PInormal Parameters P12 P18 and P19 are specified at q monthly level P12 October P12 November 55 IAHRIS v2 2 USER S MANUAL 2010 COMPONENTS OF THE REGIME Type of year Nomal year Dry year WEIGHIED YEAR P1 MONTHLY OR 3 Wetyear ANNUAL Difference between the maximum and Type of year Normal year VARIABILITY the minimum monthly volume along VOLUMES he year Dry year WEIGHTED YEAR P2 Average ofthe annual volumes Month with the maximum and the minimum water volume along the year HABITUAL DATA Type of year P3 Dry year Wetyear Difference between the average flows f I DAILY FLOWS associated to the percentiles 10 and pe Donna year 90 Dry year WEIGHIED YEAR P4 Average ofthe maximum daily flows along the year Effective discharge Connectivity disc harge Flushing flood Q5 Coefficient of variation of the CV Qc P9 maximum daily flows along the year ag ient of variation of the flushing CV 9500 P
23. AGEMENT Similarly managed to the former it allows the management of the regime alterations linked to the points previously declared When the associated menu is selected the following options are offered e Add alteration A new alteration may be entered always linked to a point of calculus Should the option be selected The following window will emerge Add alteration Alteration Data Alteration Code Alteration Description Point associated A VIVAS125 38 A pull down list is available for the selection of an associated Point between the set of points previously declared and two buttons are also available to Accept or Cancel this operation The button of Acceptance will only work when a point has been selected and when its Alteration Code and Description have been declared through the textboxes displayed with that aim Up to 12 characters are admitted for the declaration of the Code and 20 for the declaration of the Description If the code alteration was already declared n this or other project a message will emerge rejecting the entering of that alteration On the contrary situation this will be added to the database returning to the main window of the software e Delete alteration It allows the removal of any alteration in the database When this option is selected the following window will emerge Delete alteration Point Alteration 15 06 A_VIVAS125 A VIVAS125 1 CIDACOS288
24. ATION It is situated in the page header and contains four tabs Project Management Point Management Alterations Management Series Management which allow for the development of the actions necessary to declare in the database the project the points of analysis the alterations considered and the data series available 2 JAHRIS Indicators of Hydrologic Alteration in RiverS v2 2 Project Management Points Management Alterations Management Series Management The software stores in the database all the elements declared They are kept in the database unless the user decides to erase them After the project has been selected the 33 IAHRIS v2 2 USER S MANUAL 2010 next step in any analysis is based on the declaration the point series both essential and if necessary the alterations AREA OF SELECTION OF POINTS AND SERIES It occupies the left area of the central body of the viewer This area enhances the selection of the point by the user it gives information about the series available for the analysis and it holds the selection between the altered series of that preferred to make the calculations The left window allows for the selection of the point of analysis spotting it between those declared by the database Once selected the window shows its code its description and the number of altered series linked to the point and the first month of the hydrological year Point Data In the c
25. DATA INFORMATION 45 AREA OF RESULTS 49 PRACTICAL CASE 50 RESULTS A PANORAMIC VIEW 55 HOW DO DATA CHARACTERISTICS INFLUENCE IAHRIS mers RESULTS 24 HOW ARE THE RESULTS PRESENTED l HOW ARE THE REPORTS LINKED TO THE DATA M CHARACTERISTICS INTRODUCTION WHY EVALUATING THE ALTERATION OF THE NATURAL FLOW REGIME WHATIS IAHRIS WHIC H WAS THE CRITERIA TO SELECT THE PARAMETERS HOWIS THE ALTERATION OF THE FLOW REGIME QUANTIHED WHATINFORMATION IS NEC ESSARY WHAT RESULTS SHALL WE GET WHICH IS THE APPLICATION OF IAHRIS i TO KNOW MORE IAHRIS v2 2 USER S MANUAL 2010 WHY EVALUATING THE ALTERATION OF THE NATURAL FLOW REGIME This question can be answered by focusing on three different approaches the legal the scientific and the management approach From a legal approach the evaluation of the hydrologic alteration is necessary as a core requirement of the Water Framework Directive WFD This Directive fixes as the most important target of the water management the establishment of a good ecological status of the associated ecosystems In order to reach this target it is necessary to make use of protocols that allow for an efficient and objective knowledge of the ecological status of rivers The WFD in its Annex V determines a set of elements of the river ecosystem that must be considered in order to assess its ecological status Between those the flow regime is expressively quoted From
26. Number of associated alterations will show the relevant information Once this step is fulfilled the Area of Data Information and the Area of Information of Results will be automatically filled out offering that information to the user Save the report of IAHRIS in the folder selected by the user Since the report is an Excel book the user will be able to manage the data with the Excel tools 53 i RESULTS A PANORAMIC VIEW HOW DO DATA CHARACTERISTICS INFLUENCE IAHRIS RESULTS HOW ARE THE RESULTS PRESENTED HOW ARE THE REPORTS LINKED TO THE DATA CHARACTERISTIC S 54 9 TA RIS RESULTS A PANORAMIC VIEW IAHRIS is a software designed to obtain PARAMETERS for the characterization of the flow regime both the natural and the altered regime and INDICATORS for the evaluation of the degree of alteration of the flow regime in those aspects with the highest environmental meaning Thus parameters and indicators are the most valuable results offered by IAHRIS IF CONTEMPORARY DATA ARE AVAILABLE Table 1 shows the entire range of parameters potentially used by the software for the characterization of the natural and altered regimes For the comfort of the reader they are shown below The Methodological Reference Manual offers the definitions and specifications for each parameter Independently of its reading the following recommendations should be considered Parameters PL P
27. ORARY the software would be working with the Parameters and Indicators specifically associated to this situation see Methodological Reference Manual In each case the indicator of heavily modified water bodies is obtained from the indicators previously calculated 60 2 HOW ARE THE RESULTS PRESENTED To make easier the ordering and systematization of the results offered by the software they are structured in REPORTS These reports are strictly SPREADSHEETS of an EXCEL BOOK Each report spreadsheet joins notably homogeneous aspects of the results Next a portion of a spreadsheet report of one of these books is shown see the tabs in the lower end to give access to the different reports of the book extracted from the analysis REPORT ALTERED REGIME N 5 QE HABITUAL PARAMETERS FOR THE CHARACTERIZATION OF THE REGIME EJEMPLO1 EJEMPLO EJEM1_ALTERA EJEMPLO 05 07 2010 COMPONENTS OF THE ALTERED ASPECT PARAMETER REGIME DESCRIPTION VALUE hm m s Average of the annual volumes Varia Difference between the maximum and the minimum monthly volume I along the year Month with the maximun and minimum water volume along the year Difference between the average flows associated to the percentiles Q10 10 and 90 Q90 Average of the maximum daily flows along the year Qc Magnitude and Effective discharge QGL frequency Connectivity discharge QCONEC
28. T APPROACH The main view of the software shows the following appearance AREA OF DATA DECLARATION AREA OF DATA BASE MANAGEMENT Monthly data Daily data Natural Altered ered Natural Altered Datos de ejemplo Daily serie YES tapes Monthly Monthly Dai Daly Daily A kie ji Calculate Serie lculater eri Calculate Serie A Monthly serie 1986 1987 Oo Eso UI ns Point Data 1987 1988 MD NS 15 06 ies 1988 1989 1 ns v a NS v MNs v 1989 1990 A VIVAST25 1 CIDACOS288 Description EJEMPLO1 DADA EJEMPLD2 Daily serie Monthly serie Point Description NC C Whole Year 5 I Incomplete Year 20012009 H of Alterations linked to CD Compute by Daily Values 1 SD Year without Data 5 C0 Contemporary Year RE MER SAD NES NCO No Contemporary Year NS Yithou ch Witho ISSR a e Use contemporary data for Habitual Values Use contemporary data for Floods and Droughts Reports REPORT 1 INTERANNUAL VARIABILITY NATURAL REGIME REPORT 2 INTRANNUAL VARIABILITY NATURAL REGIME IREPORT 4 PARAMETERS NATURAL REGIME IREPORT 6a FLOW DURATION CURVE NATURAL REGIME IREPORT 9 ENVIRONMENTAL FLOW REGIME RAC AREA OF RESULTS Four areas containing menus designed to fulfil different aspects may be distinguished AREA OF DATA DECLAR
29. T declared in the database and selected this area will e Inform the user about the series included in the database and associated to the POINT Allow the selection of the altered series to be used in the calculation of Indicators and Parameters if not a unique series is available area OF SELECTION OF POINTS AND SERIES The central body of the main window in the software is designed to manage the information stored in the database In its upper left area a panel can be found Project where any project may After the user will select the Point in the box Point Data where any point may be selected Before the selection of any the window will show the appearance of the sample included in the chapter first contact Once the user has selected a point the window will have the appearance of the attached figure 4 JAHRIS Indicators of Hydrologic Alteration in RlverS v2 2 Pro t Manageme Management Alterations Management Series Management Data Base Manage Manuals Idioma Language Project Data series linked to the point Ejemplos v Monthly data Daily data DESEE E Natural values series r 7 pes Serie Caloulater Serie Calculate Monthly Serie Calculate Serie Caloulate Daily Monthly serie NO 1986 1987 g
30. TIFICATION CODE of the alteration and a DESCRIPTION For a specific POINT any number of altered regimes can be entered but the IDENTIFICATION CODE would be different from any other linked to an alteration independently to the project and point associated to the former 25 IAHRIS v2 2 USER S MANUAL 2010 H MUST BE STRUC TURE OF THE DATA FILES The software only reads csv files comma separated values This is a single text file type where columns are separated by a specific character in our case this will be the semicolon and files are separated by newlines These files can be created with different editors However their structure can be easily managed by Microsoft Excel Thus this is the recommended editor for their management since the whole data set may be ordered in columns and saved as csv files The import files to be valid should include in the first line the necessary information to establish the data type the data periodicity and the associated point of analysis and alteration the last only when dealing with an altered data series The rest of lines none of them in blank include the associated period month and year or date day month and year and the value of the series for that period or date The RRSTLINE of a valid file should contain in this order Type of periodicity of the series only the types MENSUAL if the user introduces monthly volumes o
31. as shown in the example 21 years from 59 60 to 79 80 and there are other non contemporary data the checks situated below the matrix will become active Use Contemporary Data for Habitual Values and Use Contemporary Data for Hoods and Droughts 1996 1999 VF LU Iv LU Iw w LU 1999 2000 CD f CD wCO IC gC v CO 2000 2001 CD v CD ACO WC gC v CO onm onn 9 ON 2 a CN 2 a C aC KA C 2 w TOTAL 20 19 19 ifs 19 19 19 19 19 155 19 There are three options for the analysis a Activate both checks The software will only use the period with contemporary data for the extraction of the parameters and indicators habitual floods and droughts That same period will be used for the characterization of the inter annual variability of the natural regime and the intra annual variability of the natural and the altered regime This is the most recommendable option when the number of contemporary yearsis only slightly smallerthan the number of available years b Only activate Use Contemporary Data for Habitual Values The software will only use the data associated to the contemporary period for the analysis of the habitual data That same period will be used for the characterization of the inter annual variability of the natural regime and the intra annual variability of the natural and the altered regime For the parameters and indicators referred to floods and droughts all data will be
32. cator of alteration for habitual values o Indicator of alteration for flood events o Indicator of alteration for drought events For the characterization of the alteration in non contemporary regimes Indicators of alteration generally calculated as the ratio between the value of the parameter in the altered regime and the value of the same parameter in the natural regime Twenty two individual indicators every indicator evaluates the alteration of a parameter o Seven indicators for the characterization of the habitual values of the regime o Eight indicators for the characterization of the flood events o Seven indicators for the characterization of the drought events Three global indicators every indicator evaluates the alteration of a component it considers globally the alteration of the parameters used for the characterization of that component It synthesizes the results given for the twenty one individual indicators o Indicator of alteration for habitual values o Indicator of alteration for flood events o Indicator of alteration for drought events Forthe characterization of heavily modified water bodies o Areport calculated by P10 90 methodology Point 3 4 2 of IPH pg 38514 of BOE of 22 09 08 sets A water body is heavily modified if it presents a significant deviation in the magnitude of the parameters which characterize 15 IAHRIS v2 2 USER S MANUAL 2010 monthly and annual conditions of th
33. city of answer of the biota Thus the process of characterization of the flow regime must endorse these five aspects The characterization must be done attending both to the normal or habitual values determinants of the general availability of water in the ecosystem and the extreme data 2 floods and droughts since they define the most critical conditions in the ecosystem considering the intra and inter annual variability Table 1 summarizes for every component of the flow regime the aspects and parameters proposed for its characterization The detailed definition and formulation used to quantify each of these parameters can be looked up in the Methodological Reference Manual With this set of parameters four for habitual values eight for floods and seven for droughts a quantitative characterization of the flow regime may be fulfilled that includes all the elements with the highest environmental meaning and transcendence This characterization can be obtained for any flow regime with enough available data natural or altered resulting from a real regulation and or abstraction or a simulation under different management scenarios IAHRIS v2 2 USER S MANUAL 2010 COMPONENTS OF THE REGIME Wet year Type of year Normal year Dry year Difference between the maximum and Type of year Normalyear VARIABILITY the minimum monthly volume along the Dry year year WEIGHTED YEAR P2 Average ofthe an
34. e altered regime These are the data included in the file DATOS EJEMPLO xls 50 2 ACTION COMMENTS The software is structured around a database where the POINT CODE is the linking element between that point and all the available associated data The POINT CODE shall be used as the necessary information for all the series that are going to be used in the analysis of the flow regime in that point Choose a Code for the Point maximum 12 characters Besides that code will and for the Alteration maximum 12 characters appear in the different In this example we will use PUNTO PRUEBA as the Point windows and generated Code and ALTER_PRUEBA as Alteration Code reports as the point identifier Thus its election must be careful and it should always be considered in the generation of the data files since it must be entered in the header of every file By doing this once the files are imported into the database they will be automatically linked to their associated point Checking entails pressing the button Control Panel Configuration Options Personalize The list separator used by the System is shown in the tab Numbers Should the semi Check the system configuration to confirm the semicolon colon not be selected it is the list separator and the date format dd MM aaaa should be marked between the different available options The date format may be verified in the tab Date and if necessary selec
35. e display list included in the panel will bring out in blue colour the point selected Meanwhile the labels named after Code Description and Number of Alterations 43 IAHRIS v2 2 USER S MANUAL 2010 linked to the point and situated below the list will include the data registered in the database It is possible to select the first month of the Hydrological year Point Data In relation to the general information of the Natural 15 06 Series associated to the Point it will indicate if the Daily and VIVAS125 VIVAS125 1 Monthly Series are available This is shown in the former figure CIDACOS 288 EJEMPLO1 Concerning the Altered Series if the number of Alterations EJEMPLO2 associated to the point are more than zero the Codes of the different Alterations will be Point Code VM UNT MM PES incorporated into the combo box l T Daly vere vts and will be ready for use Point Description NC Monthly sena NO N of Alterations linked to PEN c Default no alteration will be i selected If the user acts on that First Month Hydrologic Year Daly sene bo Bei rin 3 Month combo box selecting some of the alterations registered its Description will appear in its label showing if the Daily and Monthly Series are available This is shown in the attached figure 44 area OF DATA INFORMATION Y For any POINT declared in the database and eventually for any altera
36. e hydrologic regime It is assumed that we have a significant deviation if the magnitude of the annual monthly parameter is significantly away from the values comesponding to the 10 and 90 percentiles of the natural regime data series In this report of IAHRIS it has assumed that a water body is heavily modified if the n total of months or the n total of years with the condition cited above is less than the 50 If the percentage is equal or surpassed the 50 no classification is assigned Refer to monthly volumes green color means that the percentage that verifies this condition is 25075 red color means that the percentage that verifies this condition is 50 This representation helps user to make easier the degree of monthly alterations o A report calculated by IAH MMA methodology Point 3 4 2 of IPH pg 38514 of BOE of 22 09 08 sets The hydrologic alteration degree comesponding to a water body must be characterized by indicators of hydrologic alteration by these indicators we can compare the natural or reference regime characteristics with the altered one The metrics used must characterize the most environmental characteristics of the hydrologic regime such as magnitude duration frequency seasonality and rate of change In this report of IAHRIS it has assumed that a water body is heavily modified if six Or More indicators IAH display alterations greater than or equal to the 50 of the metric value in natural regime
37. ement of data calculations and results PROJECT It is the main reference of a specific analysis A project includes one o several points of calculus with their alterations and data series associated POINT A point is a section or reach of the river where daily or monthly data are available All points to be stored in the database require an IDENTIFICATION CODE and a DESCRIPTION It may be entered any number of points in the software always their IDENTIFICATION CODE is different In data base each point must have a different code SERIES Daily flow or monthly volume data series associated to a specific POINT All SERIES used by the software should have the following elements assigned Type of periodicity MONTHLY or DAILY Type of regime NATURAL or ALTERED POINT code associated ALTERATION code associated only for series linked to an altered regime The maximum number of series matched to a specific point is 2 1 Number of associated alterations since each point may be associated to two different series daily flows and monthly volumes for any type of regime ALTERATION As mentioned in the first paragraphs of this chapter different series can be considered in a point of the river each of them linked to different regimes of alteration To make easier the management of this information the software requires any altered series to be associated to a POINT These altered series should also be declared in the database with an IDEN
38. entral area the software identifies automatically the a natural flow series linked to the point and indicates if the VIV S125 1 i CIDACOS288 data are daily monthly or both and also the altered series EJEMPLUI i tural Itered must n ril EJEMPLO2 Those series natural and altered ust be necessarilv declared in a previous step in the database using the tabs Senes Management and if Point Code Alt ti Data senes eb ed to the port VIVAS125 necessary erations T Management If the point is P9 wes Point Description Monthly sede NO NC linked to more than one altered B Altered values seriea N of Alterations linked to series the user can select any of Code Mons 3 1 Desorption th for th nalysis The First Month Hydrologic Year em e analysis Daly sese january w software shows the description Monthy ses linked to the selected series and the data type AREA OF DATA INFORMATION It occupies the right area of the central body of the viewer It is displayed as a matrix showing in detail the data available and some of their characteristics Columns finished in SERIES refer to the information included in the file entered by the user Columns finished in CALCULATED inform about the data used by the software to calculate the parameters and the indicators 34 Manwal Natural Ahmed Atered Corano Mans jsa snared A ed Corne Yes Ma enata Set Some Coden Chine Doi 196197 5
39. gsD LI aso x gi O MNs O x Point Data 1987 1988 wep 5 as CI x vc v NN OF x 15 06 Altered values series 1988 1989 wCD M so x vC v MNs O x A VIVAS125 Code None 1989 1990 w CD M s oO x vC v N x A VI 25 1 IL 1990 1991 M 5 LI L vc v N O L Description zs 1991 1992 wed w so U x vc M d NS LI EJEMPLO2 Daily serie 19921993 w CD v iD x vc v MNs Xx 1993319944 wep M Em x vc v ans x Monthly serie 19941995 w CD v Ms Of Xx wc v MNs O x L 1995 1935 CD M so O x wc M ANS O x PEDES 19961997 M LI a vC v x 1997 1998 w CD M s CI x gc M MNs Of a 19981999 w CD v 50 x vc v XMNs x Point Description n Legend 1999 2000 M MD x wc v MNs x NC C Whole Year 2000 2001 wep M sD x v MNs Xx N of Alterati l Incomplete Year nm onn ern imi Men w Ar snc FI wv ed G OBD CD Compute by Daily Values pute by Daily 1 SD Year without Data TOTAL 20 18 18 0 0 0 19 19 0 0 First Month Hydrologie Year co No Contemporary Year RUNE TALI To 3 january 3 NS Without Satie Attach Use contemporary data for Habitual Value O Use contemporary data for Floods and Droughts Reports REPORT 1 INTERANNUAL VARIABILITY NATURAL REGIME IREPORT 2 INTRANNUAL VARIABILITY NATURAL REGIME IREPORT 4 PARAMETERS NATURAL REGIME IREPORT 6a FLOW DURATION CURVE NATURAL REGIME IREPORT 9 ENVIRONMENTAL FLOW REGIME RAC Calculate First th
40. he indicators of alteration or the environmental flow regime v The reports are prepared to be printed in A4 format Y The number and content of the reports depend on the characteristics of the data periodicity daily or monthly contemporary or not number of years The panel named after Reports situated on the lower left end of the window will always show the reports that the software is capable of writing according to the options previously selected In those cases with the appropriate series and after the user has selected them the button for Calculate will become active Once this button is pressed the software will prepare the reports They will be stored in an Excel book whose name will be automatically generated according to the codes of the point the associated alteration and the required contemporary character for the monthly and daily data The location of the file and its definitive name may be chosen by the user Files with the results may be read and printed with Microsoft Excel They include a list of results each in a different spreadsheet All of them show the identifiers of the selected point and altered regime The first spreadsheet includes furthermore the list of reports created and the set of available and finally employed data In the other spreadsheets the user can find the different parameters indicators and graphics 49 IAHRIS v2 2 USER S MANUAL 2010 amp panre In
41. he monthly value in the format yyyy for instance 2007 semicolon Month associated to the data value in the format m an only digit for the first nine months 1 for January 2 for February 10 for October etc semicolon Monthly volume in hms the decimal separator period or comma must be the same used in the language configuration in the control panel of the computer COMMENTS gt The temporal information contained in an import file must not be necessarily ordered according to the date since that information is ordered later on in the database Nevertheless inexistent or redundant dates redundant two or more lines with the same date or period are not admitted gt Files cannot contain lines in blank and each line must include all the necessary information gt The software is designed to reject any file not strictly adjusted to the afore mentioned format requirements gt If Microsoft Excel is used to generate the csv files it is fully recommendable to read in detail the following chapter How can be the data files easily generated In figure 5 different files valid as import files in the software are shown they are visualized with the notepad 27 IAHRIS v2 2 USER S MANUAL 2010 m pu MENSUAL NATURAL GALLEGO DIARIO NATURAL GALLEGO DIARIO ALTERADO GALLEGO GALLEGO a 1945510 7 23 310 19 59 01 10 1945 13 25 01 10 1971 20 1945 11 11 11 17 02 02 10
42. his mail address will be answered as far as possible but we can not guarantee an answer in all cases 19 INSTALLING IAHRIS WHIC H ARE THE SYSTEM REQUIREMENTS f DISC HARGE AND EXECUTION OF THE INSTALL FILE WHIC H ARE THE FILES INSTALLED AND WHERE ARE THEY LOCATED H ARE THE SYSTEM REQUIREMENTS The software was developed in Microsoft ESSENTIAL Visual Studio 2005 and written in Visual Basic v Microsoft NET Framework 2 0 language Thus its adequate functioning Y Microsoft Excel 2003 or higher requires the previous discharge and installation of Microsoft NET Framework 2 0 free available in Www mic rosoftc om downloads details aspx displa ylang esSFamilyID 085 6eacb 4362 4bO0d 8edd aab15c 5e04f5 All the results generated by IAHRIS are transferred to an Excel file Thus it is also necessary having this commercial software Microsoft Excel 2003 or a higher version installed in your computer Finally all data entered and used by the software are stored in a database in format Microsoft Access 2000 which is totally managed by IAHRIS with no necessary installation of a user licence However if the user wants to visualize or export the data stored in it it is necessary to count on this licence for its use Pois HARGE AND EXEC UTION OF THE INSTALL Installation of the software is executed with the file install IAHRIS 2 00 00 exe This file ESSENTIAL guides the user t
43. hroughout the whole installation process Y Before executing the install file it is necessary to install in the system Microsoft NET Framework 2 0 21 IAHRIS v2 2 USER S MANUAL 2010 H ARE THE FILES AND WHERE ARE THEY INSTALLED The install file sets in the directory chosen by the user default C Program Files IAHRIS all the files required by the software The install file also incorporates the icon associated to the executable file in the desktop When the icon is pressed a window emerges offering the user this main window INDICATORS OF HVDROLOGI _ALTERATIONINRIVERS It also adds the folder IAHRIS to the programs files including the uninstall file of the whole software Files set in the directory of the software should be kept in this place for the adequate functioning of IAHRIS 22 THE DATA WHIC H ARE THE DATA TO BE USED i THE SOFTWARE AND ITS DATABASE WHIC H MUST BE THE SIRUC TURE OF THE DATA LES2 HOW CAN BE THE DATA LES EASILY GENERATED 23 IAHRIS v2 2 USER S MANUAL 2010 WHICH ARE THE DATA TO BE USED The software uses temporal data series with daily flows in m s and or monthly volumes in hms In both situations every value flow or volume must indicate the associated date day month and year in the daily flows and month and year in the monthly volumes Only two series in natural regime may be entered for ever
44. iderably easier the file management The user must ALWAYS open with the Notepad or some other similar text editor the csv file generated in Excel to VERIFY its commitment of the necessary requirements to be read with IAHRIS Sometimes when Excel is used as the tool to generate the csv files these have blank lines after the final data line This circumstance may be easily 22 09 2002 0 591 watched when the file csv is opened with the Notepad and the 22 02 2005 0 262i shift bar is used to access the end of the data list If a situation 20599515 234 30 09 2902 11 118 occurs like that shown in the image that file will NOT be read by IAHRIS since it will interpret there are blank lines easily identified as only containing the semicolon To solve this possible problem the user can erase the blank lines directly on the file csv with the Notepad or erase in Excel all the lines after the last line with data available apparently we would be erasing lines with no data but when converted into a csv format they constitute blank problematic lines The file csv generated after this action should be totally valid 30 REMEMBER Y The software is structured around a database where POINT CODE is the linking element between the point of analysis and all the available information associated to it The first action to be fulfilled bv the user is the Project declaration Afterwards the second action is the
45. ions included in the coming chapters are followed Nevertheless it is fully advisable taking the time to know in detail i the basic principles and assumptions of the methodology ii the justification of the parameters selected to characterize the aspects and components of the flow regime iii the formulation of these parameters and their associated indicators and iv the singularities that could emerge and the criteria adopted for their solution This process will be the only way to interpret assess and apply adequately the results offered by the REMEMBER Y n order to interpret assess and apply adequately the results offered by IAHRIS it is necessary to take time enough to become familiar with the conceptual and methodological details Manual of Methodological Reference included in the software IAHRIS is born as free delivering software designed to offer to the scientific technical and management communities a tool that may contribute to know and understand the hydrological status of our rivers Improving the base methodology of IARHIS and the software can and must be a perennial target of all its users To make possible the global participation in the improvement of IARHIS we would acknowledge getting your suggestions proposals and comments in iahris mejorasegmail com Unfortunately it is NOT possible to give technical assistance to users Thus it must be emphasized that questions sent to t
46. irst line the point code must be replaced by the code selected by the user or the code proposed for this example ALTER_PRUEBA e Inthe fourth column of the first line the alteration code must be replaced by the code selected by the user or the code proposed for this example PUNTO_PRUEBA e Press Save As and select CSV Type e Choose the folder where the file is going to be loaded The user may save the file with any name We suggest PUNTO_PRUEBA_DATOS_DIARIO_ALTERADO In the first line the cell of the first column declares the periodicity of the data we use daily data and we must write DIARIO the cell of the second column declares the type of regime in this case altered we must write ALTERADO Both words must be necessarily written in capital letters NOTEPAD Check the csv files e Open the folder where the files were saved e Mark one of these files with the right button of the mouse and in the display list select Open With and NotePad e Check the data are separated with semicolon Check there are no lines after the final data line e Repeat the check with the other csv file IARHIS Open the software pressing the icon IAHRIS in the desktop or pressing IAHRIS exe after entering Program Files IAHRIS Select English in the main window pressing Language English Provide for the project in which we will work c If the project has already been declared the user must select it at the right time
47. ne in figure 4 Also for these indicators of global alteration a coloured code has been established figure 4 Should it be remarked that global indicators compare areas That means they are based on the square values of the indicators for the chosen component habitual values floods or droughts Thus the range for the different status is not the same to that for the normal indicators following a quadratic law HYDROLOGI CAL STATUS GLOBAL INDICATORS I AG 0 64 JAG lt 1 0 36 lt IAG 0 64 0 16 lt JAG 0 36 0 04 IAG lt 0 16 OsIAG lt 0 04 Figure 4 Criteria of assignation of qualitative categories Indic ators of Global Alteration WHATINFORMATION IS NECESSARY The software was designed to generate results only if the user enters at least a series with a length of fifteen complete years be these data daily or monthly flows This threshold was determined on the basis of the minimum amount of information considered 12 necessary to get reasonable results in relation to variability and extreme values Data in those series can be daily flows m3 s or monthly volumes hm If the user enters daily and monthly flow series of the same regime and period of time the software will only consider for the analysis the information resulted from the daily data Thus daily and monthly flows must only be entered if they cover a different range of time Data are grouped in two types e NATURAL
48. ned to Delete a Daily Natural Monthly Natural Daily Alteration or Monthly Alteration Series will become active If any of them is pressed the software will delete all the information associated to that series previously entered in the database Finally the window shows a button situated on the upper left corner to exit the window and go back to the main window of the software DATA BASE MANAGEMENT This command allows the import o export data base from one user to another 41 IAHRIS v2 2 USER S MANUAL 2010 If Import data base button is pressed this window will appear Import data base Select Data Base to import C Documents and Settingsill suario E scritorioXl amp HRIS para IMMA IM Import a whole project Import Points to a project Final Project CI EBRO403 EJE EBRO x LI EBRO448 C EBRO452 CI EBRO463 Information e Selectdata base to import Pressing the button Browse the user can select the data base to import The files to be used must be mdb type After the user can choose between two possibilities a To import a whole project b To import points to a project in this case a new window will emerge in order to select the points The user must select the final project among existing or define anew one If export data base button is pressed the user can select the location of the data base to export In this case the whole data base source is exported 42 Y For any POIN
49. neously all the reports listed in table 6 The data characteristics will determine in all cases the reports effectively generated by IAHRIS 62 HOW ARE THE REPORTS LINKED TO THE DATA CHARACTERISTIC S The effective influence of the data characteristics on the results reports generated by IAHRIS may be analyzed in the following diagrams Two practical cases are presented in order to make the presentation easier PRACTICALCASE A ONLY MONTHLY DATA ARE ENTERED the n of complete years is gt 15 the n of complete years in both regimes is gt 15 the n2 of contemporary years n2 of available years REPORTS does user want to select 1 1a 2 3 4a 5b 7b 8 8c y 9a only contemporary years ES E REPORTS 1 2 4a 4b 5a 7c 8 8d y 9a 63 IAHRIS v2 2 USER S MANUAL 2010 PRACTICALCASE B DAILY DATA ARE ENTERED the n of complete years is gt 15 REPORTS 1 2 4 6ay9 m z o ae the n of complete years in both regimes is gt 15 the n of contemporary years is gt 15 the n2 of contemporary years n2 of available years REPORTS 1 1a 2 3 4 5 6 7a 7d 8 8a y 9 REPORTS 1 2 4 4b 5c 6 7c 7d 8 Bb y 9 64
50. ng subjects in a rigorous and objective manner Why using IAHRIS To handle the scientific and the water management communities a tool specifically designed to help in the fulfilment of those WFD requirements associated to the characterization of the hydrological status of the water bodies To quantify objectively the hydrological alteration caused by water abstractions on the natural flow regime To interpret the affections of the alteration of the flow regime on the integrity of the fluvial ecosystem To serve os test bed Assessing the alteration induced by different management scenarios on the natural flow regime In heavily modified water bodies characterizing the optimum hydrological potential as that regime derived of the alterations linked to the strict consideration of the conditions that enhance the heavily modified character To identify the elements of the flowing regime most directly linked to the rehabilitation or recovery of the reach under analysis To fix objective criteria in order to establish priorities in the restoration of the fluvial To define environmental flow regimes which reproduces the most important environmental aspects of the natural flow regime To identify heavily modified water bodies by objective criteria 18 Or KNOW MORE Preparing the necessary data and executing the software with their associated reports should become easy tasks if the recommendat
51. nual volumes Month with the maximum and the minimum water volume along the year Type of year P3 Normal year Dry year Diffe between the flo en rence between the average flows f I DAILY LOWS associated to the percentiles of fupe ut year Foma year excedeence10 and 90 d WEIGHTED YEAR P4 Average of the maximum daily flows along the year Qe PS Effective discharge Qa P6 Connectivity disc harge Q conec P7 Flushing flood Q5 Q 5 P8 Coefficient of variation of the CV Qc P9 maximum daily flows along the year Coefficient of variation ofthe ordinary floods series erige FO Maximum number of consecutive days DURATION in the year with q gt Q 5 Hood duration P11 Average number of days in the month SEASONALITY ith q gt Q 5 12 values one foreach month P12 Average minimum daily flows along Qs P13 the year Q95 P14 Ordinary drought discharge Q 95 Coefficient of variation of the minimum CV Qs P15 daily flows along the year VALUES of the Coefficient of variation of the ordinary daily flows droughts series CV Q95 P16 DROUGHTS Maximum number of consecutive days 7 KE in the year with q lt Q 95 Droughts duration P17 SEASONALITY MINIMUM Average number of days in the month ith a daily flow equal to zero 12 values one foreach month P18 Average number of days in the month ith q lt Q 95 12 values one foreach month P19 Table L Parameters P1 P19 forthe characteriza
52. on is assessed and the parameter used to calculate the indicator 10 The details of definition and formulation used for each of these indicators can be looked up in the Methodological Reference Manual ASPECT CODE NAME Magnitude of the annual volumes Magnitude of the monthly volumes HABITUAL Habitual variability DATA Extreme variability Seasonality of maximum values Seasonality of minimum values Magnitude of the maximum floods agnitude of the effective discharge Frequency of the connectivity discharge Magnitude of the flushing floods FLOODS ET 3 SERIES Variability of the maximum floods Variability of the flushing floods DURATION IAH 13 Floods duration Floods seasonality 12 values one for each month MAGNITUDE Magnitude of the extreme droughts Magnitude of the habitual droughts Variability of the extreme droughts VARIABILITY IAH 18 Variability of the habitual droughts DROUGHTS IAH 19 Droughts duration DURATION Number of days with null flow 12 values one for each month SEASONALITY IAH 21 Droughts seasonality 12 values one MAGNITUDE AND FREQUENCY for each month All indicators in order to homogenize and make easier their understanding can vary between cero and one Cero means the maximum alteration and one the absence of alteration Following the recommendations for the EQR five levels or hydrological status have been established linearly in the 0 1 range of the indicators assigning the co
53. oreach month 12 values H8 Relative frequency of minimum foreach month 12 values H9 Difference between the average flows for the percentiles 10 Table 4 Range of parameters forthe characterization of Habitual Valuesin altered regimes when the contemporary natural regime is not available Also the associated indicators are modified table 5 It should be noted that those parameters that characterize floods and droughts P5 P19 and their corresponding indicators IAH7 IAH21 are the same to those used when contemporary data are available ASPECT ODE NAME LINKED PARAMETER Mi Magnitude of the annual volumes Imm M3 Magnitude ofthe monthly volumes 12 values Vi Variability ofthe annual volumes V2 Extreme variability Habitual variability El Seasonality of maximum values IB Seasonality of minimum values a eli VARIABILITY Variability of the monthly volumes 12 values ME H H O B Variability of the monthly volumes Heo H6 H H Table 5 Range of Indicatorsof Hydrologic Alteration for Habitual Values when the natural and altered regime are not contemporary It has been clearly stated that results of the analyses depend on the information entered into the software The range of situations derived from the data supplied is rather complex The two generic cases offered in the previous paragraph
54. ot consecutive Furthermore the lack of natural data entails neither fulfilling the calculations associated to that regime nor fulfilling those associated to the altered regime The contemporary character of the natural and altered series is a core characteristic to be known by the user before making any discussion on the results Ideally the series should be contemporary thus the alterations expressed by the indicators would have no relation with the variability of the different periods of time used in the analysis An option would be requiring that contemporary character for the extraction of the indicators but this strategy could leave behind interesting cases This is why IAHRIS allows the user to get results even when the series are not contemporary Thus the matrix indicates the contemporary REMEMBER years available both for monthly and Y Data are considered CONTEMPORARY daily series There exist some important I when the natural and the altered series questions to be discussed about the include 15 common complete years not contemporary character of the series A necessarily consecutive They will be analyzed with the help of the following figure 46 DATA Period with data in NATURAL REG ALTERED REG Natural regime Period with data in 1959 60 1960 61 A 1941 42 1942 43 1979 80 1980 81 1982 83 2008 09 If the period with contemporary data includes at least fifteen years
55. ould be one of the possible types and should be associated to some of the points and alterations previously declared With that aim all the information linked to a temporal series must be first situated on a definite file The files to be used must be csv type and should be structured in the formats already described Once the option is selected the following window will PT emerge Select data series in csv files Pressing the button Browse another File characteristic window will emerge in order to select INFORMATION the position of the file and the own csv file with the temporal series required for the database Selecting a csv file with the appropriate information in it the software will have read the first line of the file containing the most relevant data as showed afterwards just the button Load must be pressed If the csv file does not fits the required conditions the first line must include the type of periodicity and the type of regime and also the registered codes for the point and the alteration and besides the dates for the observed data must be adequate when the user is back to the window to Load the data series an emerging message will abort the import operation After pressing the button to Load the series included in the csv file the software will firstly check if that series characterized by the data included in the first line of the file is already part of the database If
56. r DIARIO for DAILY flows in capital letters are admitted semicolon as mentioned earlier this is the only separator admitted Type of regime of the series only the types NATURAL for natural regime or ALTERADO for altered regime in capital letters are admitted semicolon Code of the POINT of analysis associated to the series it should be declared previously in the database see chapter 4 in order for the series to be included successfully Just for the series linked to an altered regime the following additional information is required semicolon e Code of the ALTERATION associated to the series it should be declared previously in the database see chapter 4 in order for the series to be included successfully The RESTOF LINES containing the temporal information of the series have a different structure attending to its periodicity 26 2 SERIES OF DAILV VALUES Date associated to the value in the format dd MM yyyy for instance 03 07 2007 It is not admitted neither erasing the cero for days or months lower to 10 no using a character different to the slash to separate the digits Besides the digits must be kept in the order shown semicolon Average daily flow in m3 s the decimal separator period or commo must be the same used in the language configuration in the control panel of the computer SERIES OF MONTHLY VALUES Year associated to t
57. r ending proposals We also want to thank Juan Manuel Varela Nieto and Fernando Magdaleno Mas Area of Environmental Engineering Centre of Study of Applied Techniques of CEDEX and Francisco Javier Sanchez Martinez General Directorate of Water Ministry of the Environment their help to publish the book that includes the technical fundamentals of the Indicators of Hydrologic Alteration in River Ecosystems and also their understanding of the convenience of complementing this book with an appropriate software IAHRIS would not be possible without their enthusiastic support IAHRIS v2 2 USER S MANUAL 2010 INDEX WHY EVALUATING THE ALTERATION OF THE NATURAL n FLOW REGIME WHAT IS IAHRIS 5 WHICH WAS THE CRITERIA TO SELECT THE PARAMETERS HOW IS THE ALTERATION OF THE FLOW REGIME INTRODUCTION QUANTIFIED n WHAT INFORMATION IS NECESSARY 12 WHAT RESULTS SHALL WE GET 14 WHICH IS THE APPLICATION OF IAHRIS 18 TO KNOW MORE 19 WHICH ARE THE SYSTEM REQUIREMENTS 2 DISCHARGE AND EXECUTION OF THE INSTALL 2 INSTALLATION CH ARE THE FILES INSTALLED AND WHERE ARE THEY ja LOCATED2 WHICH ARE THE DATA TO BE USED 24 IHE SOFTWARE AND ITS DATABASE 25 WHICH MUST BE THE STRUCTURE OF THE DATA FILES 26 HOW CAN BE THE DATA FILES EASILY GENERATED 29 FIRST APPROACH 33 AREA OF DATA DECLARATION 36 AREA OF SELECTION OF POINTS AND SERIES 43 THE SOFTWARE REA OF
58. rresponding colour codes figure 2 HYDROLOGICAL STATUS PARTIAL INDICATORS IAH 0 8 lt IAH lt 1 0 6 lt IAH lt 0 8 0 4 lt IAH lt 0 6 0 2 IAH lt 0 4 OsIAH lt 0 2 Figure 2 Criteria forthe assignation of qualitative categories to the Indicators of Alteration In order to make easier the global analysis for the three main elements of the regime habitual values floods and droughts two procedures are offered 11 IAHRIS v2 2 USER S MANUAL 2010 On the one hand a network graphic designed to observe simultaneously the values of the indicators for the assessed parameters figure 3 This graphic shows clearly the distance of the value for every indicator 4n red colour in the figure from their associated values in natural conditions which is always 1 following the initial assumptions Figure 3 Calculation of the Global Alteration Indicators IAG from partial indicators IAH On the other hand an indicator of global alteration is calculated for each component habitual values floods and droughts This indicator sums up the values of the indicators selected to assess all aspects considered for this component of the regime The global indicator is evaluated as the ratio between the area inside the polygon for the altered regime surrounded by the red line in figure 4 and the area inside the polygon for the natural regime i e the area associated to value 1 for all indicators the blue li
59. s do not fit all the possibilities Nevertheless they could be the initial step for further and more complex situations Thus this manual offers in the following sections 1 Description of the different characteristics potentially supplied to the software by the data 2 Description of the range of reports which the software is capable of fulfilling 3 Flow diagram to guide the user on the way IAHRIS works with the different combinations of data types and reports 58 HOW DO DATA CHARACTERISTIC S INFLUENCE IAHRIS RESULTS The series may be characterized according to the three following aspects periodicity nature and contemporary character The way these characteristics determine the results of the software are briefly resumed next PERIODICITY They could include two types of data average daily flows m3 s or monthly volumes hm3 Each series may only contain data from a type How does periodicity influence the results o If only the monthly volumes are available results will be limited to three parameters P1 P2 and P3 and five indicators IAHT IAH2 IAH4 IAH 5 and Parameters and indicators will be strictly referred to Habitual Values o In this case the indicator of heavily modified water bodies is derived from these five indicators o Monthly volumes hms corresponding to a specific environmental flow regime are calculated but not the set of 12 parameters to characterize low flows
60. ser must select it at the right time see DECLARE THE PONT b If user want declare a new project add project e Press Projects Management New Project Name e Press Add Project A new project may be entered Selecting the option the Description following window emerges It is designed to enter in two text boxes the Name and Description Two different buttons are displayed in order to Accept the new project or Cancel the operation Up to 12 characters are admitted for the Name and up to 20 for the Description 36 Delete project It is designed to erase in the database any project previously entered Selecting this option the following window emerges Delete project Project to delete Project Ejemplos Points associated 6 POINT MANAGEMENT It is designed to manage the set of points necessary for the calculations When the menu is selected the following options are displayed Add point A new point may be entered Selecting the option the following window emerges Add point Point Data Point Code Point Description Project associated Ejemplos It is designed to enter in two text boxes the Point Code and the Description Then it is necessary to select the project Different buttons are displayed in order to Accept the new point or Cancel the operation Up to 12 characters are admitted for the Code and up to 20 for the Descrip
61. t the appropriate for IAHRIS dd MM aaaq These checks are core since any of these Open with Excel the data file and verify characteristics would i make the csv file useless e The decimal separator used by the system point or comma is the same as in the flow data in ARE j The final two checks must e There are no blank lines bo done e There are no blank cells in any of the two columns DATOS EJEMPLO xls both in the NATURAL and the ALTERED spreadsheets PREVIOUS PHASE CONTROL PANEL EXCEL 51 IAHRIS v2 2 USER S MANUAL 2010 EXC EL Generate the data file in natural regime in cvs format e Activate the spreadsheet NATURAL In the third column of the first line the point code must be replaced by the code selected by the user or the code proposed for this example PUNTO_PRUEBA e Press Save As and select CSV Type e Choose the folder where the file is going to be loaded The user may save the file with any name We propose PUNTO_PRUEBA_DATOS_DIARIO_NATURAL In the first line the cell of the first column declares the periodicity of the data in this case we use daily data and we must write DIARIO the cell of the second column declares the type of regime in this case NATURAL Both words must be necessarily written in capital letters Generate the data file in altered regime in cvs format e Activate the spreadsheet ALTERED Inthe third column of the f
62. terization of the regime no contemporary tered regime Habitual parameters for the characterization of the regime Altered regime Habitual parameters for the characterization of the regime no contemporary NATURAL AND ALTERED REGIME AVERAGE VALUES OF THE FLOW DURATION CURVES Natural regime Average values of the flow duration curves Altered regime Characterization of heavily modified water bodies P10 P90 indicator Altered regime Characterization of heavily modified water bodies IAH MMA indicator Altered regime Characterization of heavily modified water bodies IAH MMA indicator Altered regime Characterization of heavily modified water bodies AH MMA indicator f Altered regime Indicator AH MMA to bodys of water with high hydrological alteration PH f ENTAL FLOW REGIME RAC SCENARIO SELECTED VOLUMES ENTAL FLOW REGIME RAC SCENARIO SELECTED VOLUMES f if only monthly data are available Table 3 List of reports offered by IAHRIS with indication of the information contained in them The number of reports offered in an analysis depends on the data entered by the user Chapter 5 RESULTS offers further details on the links between the data entered and the subsequent reports 17 IAHRIS v2 2 USER S MANUAL 2010 whic H IS THE APPLICATION OF IAHRIS Time experience and suggestions from the users will answer this question but we hope IAHRIS will contribute to answer some of the followi
63. tion If a Point Code already registered in the linked database is entered a message emerges indicating this circumstance and cancelling the operation On the contrary situation the new point is registered in order to enter afterwards all the linked alterations and series available 37 IAHRIS v2 2 USER S MANUAL 2010 Delete point It is designed to delete in the database any point previously entered Selecting this option the following window emerges Delete point Point Alteration 15 06 amp _VIVAS125 A VIVAS125 1 I CIDACOS288 Warning The Delete of a point means EJEMPLO1 the Delete of all the alterations and EJEMPLO2 series linked to this point It contains on the left a pull down list in order to select any of the Points previously declared The selection of one of these points will enhance its appearance showing it on a blue background and on the list on its right the alterations linked to it if any will be displayed Besides the button Delete situated on the lower right area of the window will become active in order to allow the erase of the selected point As it is indicated on the own window the delete of a point means the delete of all the alterations and series linked to this point Finally in the upper right area of the window there exists a button to exit the window and go back to the main window inactive whereas the erase window is present ALTERATION MAN
64. tion associated this area INFORMS about e The data contained in the series selected by the user for the analysis e The data finally used for the calculations When the user selects a point and optionally an alteration associated to it and some temporal series linked to them is declared the information associated will be displayed This information will be available in the matrix designed specifically for this situated on the right area of the window as shown in the following figure gt Hydrotoge Narwal Ahmed Conemo anal Naual Awed Consens You Soe Cooke Sea Coude So BoM em Sex Cane DEN 19961997 O Ms LI a i D As a 199719898 w CD j Zs L a vc s L x 19881989 w CD Mso LI a wc b MNs LI a 19891990 WCD Zs LI x wc aus a 19901391 w CD v Mso LI a wc iv MHsS L a 1931 1992 vo v 50 L E wc M ays LI a 1992 1993 wep 2 50 LI a wc ei Mw O a Legend 199331994 CD vi 50 O a wc 2 am O 19419 wo ws M we 5 Xs D sx C Whole Year 199519966 vo M 50 a wc v MW oO a Incomplete Year 19961997 vo FJ s a wc M arn CI a i 19971988 yo ks O x vc a Mis D x Bee Compute by Daily Values 1999 1999 w CD F au sp a wc z ans CI a SD Year without Data 19992000 wo j 50 U a vc M As LI a CO Contemporary Year 2 fal v awam veo p Mo D X vc E D HW NCO No Contemporary Year NS Without Serie Attach 20 19 19 0 0 0 19
65. tion of the flow regime Should it be observed in the set of parameters included in IAHRIS the inexistence of any parameter linked to the rates of change Future versions of IAHRIS will incorporate parameters matched to this component of the flow regime Eager users may find further information on the characterization of the rates of change both in the ascending and the descending branches of the hydrograph in the book titled INDICES DE ALTERACION HIDROLOGICA EN ECOSISTEMAS FLUVIALES Martinez 8 2 Santa Maria C amp Fernandez Vuste J A 2006 CEDEX M de Fomento M de Medio Ambiente This publication includes the conceptual and methodological bases implemented by IAHRIS Nevertheless the development of the software has motivated minor changes These changes are detailed in the so called Indicators of Hydrologic alteration Methodological Reference Manual also part of the documented section of the software IAHRIS v2 2 USER S MANUAL 2010 How IS THE ALTERATION OF THE FLOW REGIME QUANTIAED The WFD establishes the characterization of the ecological status through the comparison of the real situation and the scenario used as reference For any of the elements to be considered flow regime macroinvertebrates phytobenthos ichtyofauna the following items must be checked 1 Definition of the variables to be measured attending to their capacity to reflect the environmental integrity of the
66. turalland the altered regime in a section of the river These parameters assess different hydrologic aspects of the flow regime with environmental transcendence droughts duration floods seasonalitv If the user enters data of the natural and the regulated flow regime the software calculates a set of indicators that evaluate the degree of alteration of the most relevant environmental aspects of the flow regime In the conditions cited below the software calculates the hydrologic alteration by IPH Spanish Hydrologic Planning Instruction Point 3 4 2 HEAVILY MODIFIED WATER BODIES and assess the condition of high alteration by two criteria P10 90 and IAH MMAJ The software obtains a set of environmental flows scenarios associated with certain flow conditions in natural regime following the RAC Methodology R gimen Ambiental de Caudales 4 A flow regime is considered NATURAL when its characteristics magnitude frequency seasonality duration and rate of change are not noticeably altered by humans A flow regime is considered ALTERED when humans have modified the natural regime by regulation abstraction and or incorporation of flows Environmental flow regimes are also included in this category Users can find further information in Indicators of heavily modified water bodies Methodological Reference Manual Users can find further information in Environmental Flow Regime Methodological Reference Manual
67. used in the example 41 42 79 80 for the natural regime and 59 60 08 09 for the altered regime This is the most recommendable option 47 IAHRIS v2 2 USER S MANUAL 2010 when the number of available years is notably bigger than the number of contemporary years c Only activate Use Contemporary Data for Hoods and Droughts The software will only use the data associated to the contemporary period for the analysis of the floods and droughts All available natural data will be used for the characterization of inter and intra annual variability of the natural regime in the example 41 42 79 80 However this characterization is not possible for the altered regime For habitual data all available years in both regimes will be used In this case the parameters and indicators specifically proposed for NON CONTEMPORARY SITUATIONS will be calculated see Methodological Reference Manual Except for specific targets or complementary results this isthe least recommendable option Y When the checks become active user will always know the result of this action since the matrix will show the years included in the different series and the list of reports offered by the software in that case 48 D area oF resus Y For each calculation the software offers the results in an Excel book Each spreadsheet in the book refers to a specific aspect of the regime to the parameters for its characterization to t
68. ve following chapter shows the different reports generated by the software attending to the afore mentioned characteristics periodicity and contemporary character of the flow data 13 IAHRIS v2 2 USER S MANUAL 2010 JIWHATRESULTS SHALL WE GET Previous sections remark the results generated by the software are directly dependent on the data entered in it When the most complete data is used in a point of analysis i e daily contemporary flows both in the natural and the altered flow regimes the software offers For the characterization of the natural flow regime e Inter annual variability with a classification of years in wet normal or dry years attending to the position of their annual accumulated volume in the quartile associated to the highest wet values in the quartile associated to the lowest dry values or in the two quartiles associated to the intermediate normal values e Intra annual variability For the three types of year wet normal dry the median monthly volume for every month is calculated Nineteen parameters numerical variables that characterize the most meaningful aspects of the flow regime o Four parameters for the characterization of the habitual values of the regime o Eight parameters for the characterization of the flood events o Seven parameters for the characterization of the drought events Flow Duration Curve For the characterization
69. y point in the river one series with the daily flows and a second series with monthly volumes In the altered flow regime the user can enter any number of series For instance if it is the case of a dam under exploitation for a number of years it may be used a unique series associated to the altered flow regime or different series if management criteria has been modified along the time Thus each of these series associated to the different periods of time would be computed as an independent series but all of them characterized as linked to the altered regimes and matched to the same point in the river Another situation with series linked to altered regimes and the same point in the river would be that where different management strategies for a hydraulic infrastructure are analyzed For each of these hypotheses with a similar or different period of time a simulated series would be generated and each of these series would be a different altered regime associated to the same point in the river This option when the user can link different regulated scenarios to a point in the river makes the software prevail a specific treatment for these series 24 2 THE SOFTWARE AND IS DATABASE To understand adequately the structure data management and functioning of the software it should be noted that its core element is its database There are three main concepts in the software for the organization and manag
70. y values is offered ASPECT CODE NAME LINKED PARAMETER volumes volumes values Seasonality of minimum values Magnitude of the maximum floods Magnitude of the effective discharge Frequency of the connectivity discharge floods floods Hoods duration Flood seasonality 12 values one foreach month Magnitude of the extreme droughts droughts droughts Vanability ofthe habitual droughts Number of days with null flow 12 values one foreach VARIABI 3 x BBB UU IAH7 MAGNITUDE AND FREQUENCY IAH9 VARIABILITY DURATION IAH13 SEASONALITY IAH 14 MAGNITUDE AND c 2 o lt IAH 17 VARIABILITY 8 u 1 t DURATION month Droughts seasonality 12 values one for each month 3 Table 2 Range of Indicators of Hydrologic Alteration IAH1 IAH21 for contemporary regimes l IF CONTEMPORARY DATA ARE NOT AVAILABLE Should this be the scenario the parameters for the characterization of the habitual values of the altered regime are different table 4 IAHRIS v2 2 USER S MANUAL 2010 PARAMETERS Average ofannual volumes H1 _ Median of annual volumes H2 Coefficient of variation of annual volumes H3 Average of monthly volumes 12 values H4 7 Median of monthly volumes 12 values H5 Coefficient of variation iof monthly volumes 12 values H6 Extreme variability H7 a Relative frequency of maximum f

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