User Manual HYPE – Hydrological Predictions for the Environment
Contents
1. soil runoff model compartment In a cold climate snow melt is necessary cmt It is a land use dependent parameter and need one value per land use defined in GeoClass txt Evapotranspiration is governed by a land use dependent parameter cevp The default value of all model parameters are zero so if these are not set no snow melt or evapotranspiration will occur For a model with more than one soil layer the maximum amount of percolation mperc1 mperc2 need to be set for percolation to occur The available storage of water in the soil needs to be set The model parameters for field capacity wcfc and effective porosity wcep depend on soil type Runoff from the soil is determined by runoff coefficients The runoff coefficient of the top soil layer is necessary rrcs and depend on soil type For surface water model compartment Flow in rivers has a peak velocity rivvel This parameter determines the delay in the system If you have lakes you can give a general lake depth gldepi and rating curve coefficients gratp gratk They will be used for internal lakes They will also be used for outlet lakes if no other data is given for them E g outlet lakes may have their lake depth given in GeoData txt Typical intervals for above mentioned model parameters cmlt 2 5 cevp 0 1 0 3 mpercl mperc2 5 100 wefc 0 05 0 5 wcep 0 05 0 5 rrcs1 0 05 0 5 rivvel 0 5 2 gldepi 5 10 gratp 1 100 gratk 1 2 Result With no special settings gi2. Charlotta Pers 2014 01 10 User Manual HYPE Hydrological Predictions for the Environment Content Part 1 Introduction to the HYPE model Part 2 Tutorial not existing yet Part 3 HYPE model Description Part 4 File Description Part 1 Introduction to the HYPE model This document gives an introduction to using HYPE and describes a few basic functions The document contains information on installation and running the model a brief model description and an overview of input and output data The HYPE model HYPE is a semi distributed hydrological model for water and water quality It simulates water and nutrient concentrations in the landscape at the catchment scale Its spatial division is related to catchments and sub catchments land use or land cover soil type and elevation Within a catchment the model will simulate different compartments soil including shallow groundwater rivers and lakes It is a dynamical model forced with time series of precipitation and air temperature typically on a daily time step Forcing in the form of nutrient loads is not dynamical Example includes atmospheric deposition fertilizers and waste water HYPE was developed at SMHI with focus on integrating water and water quality throughout the model compartments predictions in ungauged catchments large model set ups eg Europe In a HYPE model set up the catchment s are divided into covering but not overlapping so called subbasi
3. e For example to get a file with time series for simulated outflow from each subbasin a timeoutput is used timeoutput variable cout HYPE may calculate performance criteria if the variables to be compared is given in info txt For comparing simulated cout and observed rout discharge for example the variables need to be given in the file crit 1 cvariable cout lt RETURN gt crit I rvariable rout The following five input files are mandatory Pobs txt Tobs txt par txt GeoData txt and GeoClass txt The forcing time series of precipitation and temperature are given in the files Pobs txt and Tobs txt Each subbasin must be coupled to one precipitation and temperature time series This may be done one by one then each time series has a column id number which is matched to the id number of a subbasin subid but other methods exist Model parameters determine the simulation result and are given in the par txt file Some basic model parameters are described in next section The geographical input data for each subbasin is given in GeoData txt while information about classes is given in GeoClass txt The same classes exist for all subbasins in a model set up but they can be zero in area for some subbasins One subbasin s information is given on a row in GeoData txt Necessary information is an identification number subid subbasin area area and class area fractions slc_nn Other information that is often included in GeoData txt is th
4. e coupling i e subid of downstream subbasin maindown main river length rivlen and outlet lake average depth lake_depth For nutrient simulations also crop region region atmospheric deposition e g precipitation concentration of inorganic nitrogen wetdep_n and point sources e g total phosphorus concentration ps _tp outlet volume per day ps _vol and SP fraction ps _sp are common For each class land use type soil type stream drainage depth number of soil layers and soillayer thickness is necessary This information is given in GeoClass txt with one class per row For lake classes which are special from land classes this also need to be given in GeoClass txt GeoClass txt is column order dependent so the information needs to be put in the right column see Part 4 File Description Other column contains information that can be used but is not necessary For nutrient simulation crop type is also necessary in GeoClass txt and information about crops for different crop regions is given in the file CropData txt Basic model parameters Model parameters determine the function of the model These are given in the file par txt The model parameters may depend on land use type soil type or be a general value The model parameters to be presented make up a rudimentary water flow model but many more exist and include other functions to the model The model parameters are described in more detail in Part 3 and 4 of the User manual For a
5. for download on hype sourceforge net Included in download are a ReadMe file with instructions for compiling and examples of small model set ups HYPE may be invoked from the command line with the path to the model simulation configuration file as argument E g P gt HYPE exe D modelsetups model1 or hype data modelsetups model1 Note that the path ends with a slash HYPE model set up The structure of a HYPE model set up is simple All input and output are in the form of text files located in one or two folders The input may be grouped into time series input data which is forcing data and observation time series and geographical input data i e information about the landscape and human influence The geographical data is coupled to the subbasin division Output is simulated time series of water and nutrients and performance criteria In addition information to run the simulation is given as a text files The error checking is non existing so be careful to follow the file format as described in Part 4 File Description The model simulation configuration file info txt determine the simulation period bdate edate and what substances to simulate substance Water is always simulated but nitrogen N and or phosphorus P may be included If the model set up input files are located in another directory than the info file the path to this directory is given modeldir What output is to be written to file is determined in the info fil
6. nd up to date description of the HYPE model get the latest version of the model description User Manual Part 3 or HYPEmodelDescription odt It contains all functions available in the model with descriptions of equations and parameters to govern them Format of input and output files may be found in the file description document User Manual Part 4 or FileDescription odt This document contains all model parameters and output variables for HYPE
7. ns These are coupled according to surface water path ways by a main river and possibly lake at the outlet of subbasins A subbasin is further divided into fractions based on e g land use and soil type These are called classes The following functions are simulated but the list is not all inclusive precipitation and snow pack soil moisture and evapotranspiration turnover of nutrient pools in the soil soil runoff and nutrient leakage surface runoff and erosion local stream and lake main river and outlet lake river bank erosion sedimentation and resuspension in rivers denitrification and primary production in surface water sedimentation in lakes Nitrogen N is simulated partitioned into the fractions inorganic nitrogen IN and organic nitrogen ON Phosphorus P is similarly partitioned into soluble phosphorus phosphate SP and particulate phosphorus PP All fractions are transported with water Together the fractions form total nitrogen TN and total phosphorus TP Run the model The model is run under Window or Linux The code is written in Fortran and an open source under the Lesser GNU Public License SMHI took the initiative for a HYPE Open Source Community to strengthen international collaboration in hydrological modelling More information about the initiative can be found at hype sourceforge net Download the executable or compile the downloaded source files to get an executable for your system The files are available
8. ven for output the only result will be the log file hyss_xxx log with information about runtime and files used There are several options for output of simulation result The example given above timeoutput variable cout will produce a text file called timeCOUT txt with time series for simulated outflow cout from each subbasin in the model set up as columns defined by subid There are options for printing time series of several variables for one subbasin in one file and printing period mean values of a variable for example When observations are given as input to the model set up e g file Qobs txt with observed discharge see Part 4 File Description HYPE may calculate performance criteria The variables given in info txt for criteria calculation are compared Performance criteria will be calculated for every subbasin with existing observations and are printed in the subass1 txt file one subbasin per row Example of performance criteria NSE Nash Sutcliffe Efficiency CC correlation coefficient and MAE mean absolute error Some performance criteria for the whole model set up are also printed in the log file and the simass txt file Further information For an introduction to the model and concepts behind it read the Hydrology Research paper Development and testing of the HYPE water quality model for different spatial scales Lindstr m G C Pers J Rosberg J Str mqvist and B Arheimer 2010 41 3 4 295 319 For a thorough a
Download Pdf Manuals
Related Search