17 November 2008
Contents
1. 8 Support Calculation customer relations Cecilia Ambj rn Oceanographer 0709 784488 011 4958174 Email Cecilia Ambjorn smhi se System or installation problems Lina Ettling Application Manager Email Lina Ettling smhi se Address SMHI 60176 Norrk ping Sweden SMHI Phone 46 11 4958000 SMHI Fax 46 11 49580012. Substance 8 Oil classes State of oil Medium oils 100 1000 cSt w Fresh ina Oil specific State of oil Calculation options Gasoline Select state _ Add uncertainty which depends on uncertainty in 2 Oil lumps the weather forecasts 5 cm thick floating w O Floating object Algae Floating algae Objects substance Constant depth dv Calculation name Calculation mode Brief 8 Normal Detailed Calculation info Other info Discharge 8 Instantaneous Amount Continuous Total amount Rate Duration Default values Cancel Figure 4 Start and stop time and outlet depth Forward calculation make a forecast up to 48 hours ahead and start 14 days back in time Default of Stop time is tomorrow at 24 00 UTC Default of Start time is present time now UTC Coordinated Universal Time Backward calculation make a calculation backwards in time to find the place where the oil or object comes from The Start time now has to be later than the Stop time Outlet depth is the initial depth of the spill The depth is given in meters decimals are possible S Seatrack Web File View Layer About Rea a BD ES i vemecase cont case perete case x gt MS gt gt gt gt AHR ee ouens O Stow ios 17 Ne 3 p 4 f Calculation name Calculated at UTC Ho
3. E ET This scale shown in lower right corner gives information about the depth intervals where there is oil Red is at the surface Green is below the surface and less than 1 meter depth Yellow 1s deeper than 1 meter and less than 5 meters And so on 7 1 Visualisation of the result D 4 4 o ta lt gt bt orita 09 00 mm These parts of the upper frame are active when a calculation is made Trajectory ON OFF draws a line through the centre positions of the spots every 15 minute To erase the trajectory click Trajectory again Time date and position are written every 15 minute if there 1s space If you then zoom more data will be written Egil gt ta Ls gt vi fr01 12020000 H Show ce ourens E Stow ice wee L Figure 10 Trajectory in a zoomed area Trace ON OFF and Animate all the results from the forecast are shown automatically every 15 minute To the left of Animate is Trace which means that one sees every spot in the same view The time of the animation is shown in the popup menu to the right You can stop Animation by clicking Animate again To look at each spot specifically use Start spot Choose Step 1 to step 15 minutes in a forward calculation The choice Step 1 steps one hour backward in a forward calculation End spot gives the spot of the last time step Simultaneously one can see the time of the actual spot in the popup menu and at N
4. 100 It is possible to plot the other variables such as viscosity and so on by clicking the wanted variables and press Create chart Or make your own plot by copying the table Date YYYY MM Time Center pos Center pos Current Cur Wind s Wi Volume a cos cst Density a Oil at s Oil at surface Disper Dispersed oil Oil at s 2011 12 09 08 00 58 55 22 12 49 79 0 14 338 125 160 100 0 900 4 100 0 100 0 0 0 0 0 160 90 9 2885 906 9 34 79 6 790 12 0 08 30 58 55 49 i 4 i I i 08 45 158 55 61 09 00 58 55 73 09 15 58 55 85 09 30 58 55 96 09 45 58 56 07 10 00 58 56 18 10 15 58 56 29 10 30 58 56 39 10 45 58 56 48 11 00 58 56 58 11 15 58 56 67 i 3 2011 12 09 11 30 58 56 77 12 48 01 0 06 268 119 207 2011 12 09 11 45 58 56 87 12 48 09 0 04 270 118 207 2011 12 09 12 00 5856 el 12 48 18 0 04 270 118 207 C Volume m 3 _ Evaporated oil Current speed knots CJ Oil at surface m 3 _ Oil at surface Current direction degrees towards C Dispersed oil m 3 _ Dispersed oil Wind speed m s CJ Oil at sea bed m 3 _ Oil at sea bed Wind direction degrees from C Oil at shore m 3 _ Oil at shore w Viscosity cSt Create chart _ Water content Density kg m 3 Create chart Create chart Oil at sea bed Oi y
5. A A DAYA asa YES e A A E A A A A A O AAA E AA AAA Y ys WN NN SNS SWS SH BHR RRR FRR RRB B BBO MH AMA ee MS MN SNS Hee A ce 0 0 AK a ae 0 a ae a a es gt een NNN NNN WS WS HBB RR RBBB HHH HD OOH ve RS MN SNS NN NN ere PRA dE is Gb 53 70 N 19 21 84 E E A ee 3 EE gt gt opia a 183008 650 a Mies OR user Fees a S A da 2 tete Sh toa icc A gis tzr Shab 68 53 01 cone et nee TY ag Sa Rae Say ee ay UK KR RRR wp fF fF fF a 4 Doa a a gt 2 yl EIA Dooo ou Ss 2043 11 27 2400 68 53 25 NAS 29008 ee 8 o BO R KRK RE RR amp RR R R R L a o A u oar fg 1198 Ge 5200 N 13 NR Loss gt gorra 7190 668 14 BA E a ee at a A AAA Oe Bae ee ke woe S r dt f par127 10 18 68 5282 N 13 17 00 E 7 2014 11 27 22 00 BB 6297 N 192489 O IIA a ed 709 00 8 5272 ae 10250 A a am des ten apap poe E E II afan ar 08 30 685281 NA 18 18 95 E O Oe ES RU Adler oe ee Arca A ee EN Me 7 e 6 ee 520 N ty ARD Sg Ma o a E ee a o y gt gt TT 1728 210 E R R nm R RRA AA 1 1 Dl Wit 41 ted die aA AN s 2B E A FY F F F ae eae ie Z 52 a 325 ME A tt i 2 41 122 kr 00258 52 08 A 1314876 i Be a m Gd Sy Py A IS a AA ta ran at ANV ON II gt Pf PF PR Pp rr PP AA mM W E g me BS a A a e a a ee a a ee SS e 222 AI ok ot OR Pa DF oe ee A ias Be ene ee eS Sw SS Ar eo aA A A A A Cie ee ee TTT ATT PSAs P a Ma a we oe SS ee a Ppp sars 207 A A AE TEE SS PA ae REET PEPE Eorl 6 ok E oe aa Dts IFAI ise ET KPA TET ERE AAA EO PAPEL ELL ILE
6. December 2011 Manual Seatrack Web Vanern A user friendly system for forecasts and backtracking of drift and spreading of oil chemicals and substances in water Version 1 0 1 Introduction and Background ssssssssssssessssssssssssscsersseossrroosrrssoossrsnnnnnnrr 3 1 1 TEC do es 3 Lo The weather model ccccccecceccscecceccscescsceccscescescecescescescscescescesescescescesescuseeses 3 2 Installation of Seatrack Web ccccccsscsscscsccccccccccccccccccccccccccccccccccccccces 4 2 1 Sy SECM RCC UIT CIN daa 4 222 WAV As WV CD SUA ieee A OA 4 3 Start and Stop Seatrack Web V nern scsccccccccssssssssssssccccccccesssssssees 5 3 1 A a AM ROA 5 342 O A Tene EER ere 5 4 The graphical user interface sssssoccscsssssssocccrssseooossrosoossroosrsronnnnsssossrrrnr 6 5 Calculation parameters and start a calculation cssssscsscccccccssssssscsees 7 5 1 T a a teh a tee a eater ca ela tea 7 a2 STD STATIC auan a a Re ke vi ae sania a oat eens sain ale cane ee meee cues 8 So meee A A ney Cerne eran eee 9 5 4 SCS IOS O O A 9 5 5 Calcula MOUSE e ia 9 5 6 EC IN 10 O DS AA A ete E A NA 10 5 8 Compute Candela sia 10 5 9 SOP A E 10 5 10 Common Information cecc ccc ccc ccc ecceccsccscecceccsccscesceccscescescecescesceseesescescecescescesees 10 6 Menues in the upper frame sccccccccccssssssssscscccccccssssssssssccccsssessssscsees 11 6 1 Tool buttons
7. et address which 1s https stw vanern smhi se in your Web browser The manual is found by clicking User Manual Scientific documentation explains the physics in the system If you want support click Contact See figure 1 Press Start Seatrack Web write User and Password press Login and the map in Figure 2 appears Seatrack Web Vanern Oil drift forecasting system developed and administrated by SMHI Start Seatrack Web User Manual j B User news gt Scientific 2011 11 22 Version 2 6 Documentation Contact HELCOM SMHI 2011 Figure 1 The Seatrack Web V nern start page 3 2 Stop If you want to stop Seatrack Web go to File and click Exit 4 The graphical user interface Y 5 E P Pp RA vos Ne PR A Re ES e 3 t LA n Show wind PL RA E Al Define case Cont case Delete case 2 b K DI O W See ESR x Saba Esa 1 ja P Calculation name Calculated at UTC How showing UTC 2 Draw Import or Add starting point s Unit Degrees and decimal minutes Latitude Longitude 58 53 400 13 17 589 58 51 174 13 17 850 E AS Al 3 Choose Model Vanern 370m 2 days forecast HIRLAM 4 Calculation parameters Figure 3 Define a new case Define Case see figure 3 1 Choose Outlet type Center point of spill Line spill a line composed of one or several connected straight lines is pos
8. eters and 4 meters down to 104 meters It is possible to plot and animate the forecasted surface currents The forecasts for V nern are made once daily and new 48 h forecasts are included into Seatrack Web V nern every morning Brief forecasts are also made every 6 hour in order to have the best starting values 24 hours after the earlier calculation Every hour a new current field is taken into account 1 2 The weather model The wind forecasts originate from the Hirlam weather model run in SMHI The wind forecasts used in Seatrack Web are from 10 meters height The winds are calculated with 5 5 km horizontal grid resolution Every hour a new wind field is taken into account 2 Installation of Seatrack Web 2 1 System Requirements OS Windows XP Windows Vista Windows 7 Linux Red Hat 6 Ubuntu Computer Processor I GHz or more Computer memory 512 MB or more Screen resolution 1024x768 pixels Web browser Minimum Internet Explorer 8 Firefox 5 Java Java 6 from Oracle not IceTea or other java provider 2 2 Java Web start This version runs via Java Web start This is included in Java and should automatically be installed and used when starting Seatrack Web If you have not installed java make sure to install the latest version BD Download Free Java Software Windows Internet Explorer provided by SMHI to ee se ORACLE 6 1 3 Start and Stop Seatrack Web V nern 3 1 Start Enter the Intern
9. for the map view Define case Continue case or Delete case 12 7 The calculation is TreaClY ssssossssssooossssvocovossso0o000s00000000000000000000000000000000000000 13 7 1 Visualisation of the result c cscoscoscoccscoccoscaccscoscancsccecscascnccscscascsceecesees 13 7 2 Plot the wind the surface currents and 1CC ssseseosesrsrserrrrrrrrerrrerrrrerrerer rer rr rer rer nera 14 IS o SI A 7 ee ee ee 15 FA SHOW Fesultsan a table OF plotas 15 S UPPER AE 16 1 Introduction and Background Seatrack Web V nern is an application of Seatrack Web for the lake V nern The application has been set up by SMHI Seatrack Web Vanern s main purpose is to calculate the spreading of oil in V nern The program can also be used for other substances than oil such as chemicals or floating objects In addition to an oil drift forecast 1t 1s possible to make a backward calculation Then a calculation starts at the position where a substance was found The programme calculates the drift backwards in time and traces the origin of the substance or an object 1 1 The circulation model Seatrack Web V nern has access to forecasted current fields of the high resolution version of the Hiromb model for V nern The horizontal grid resolution for V nern is about 350 meters the currents are calculated at every 350 meter Vertically the resolution is 1 meter down to 20 meters 2 meters down to 44 meters 3 meters down to 68 m
10. ive new ones To account for the uncertainty in the weather forecast the user can select Add uncertainty which depends on uncertainty in the weather forecasts When this option is selected the area over which the oil or substance is spread during the calculation will increase to reflect the possible spreading of the spill when the uncertainty of the weather forecast is included Hence the increased spreading should not be interpreted as a physical process but as a consequence of the inherent uncertainty in the weather forecast 5 5 Calculation options Calculation mode gives the possibility to choose Brief 10 particles Normal 500 particles or Detailed 2000 particles Sometimes one needs a fast answer and then Brief is recommended When a high significance 1s needed many particles will improve the result This choice takes a longer time to calculate Normal is the default value 5 6 Calculation info Calculation info Calculation name Other info Default values Cancel Figure 8 The choice of a name of the calculation and a protocol Calculation name is the name you want to call the case This is later written in the grey square in the upper left corner of the map Other info is of your own choice but is useful when you want to save the picture of the Calculation parameters by choosing View and Input data 5 7 Default values Go back to Default values in the Calculation parameters if needed 5 8 Compute Ca
11. mize scale in current window gives the whole map back uy Set map scale choose your own scale and centerpoint Scale Center lower left shows your scale and centerpoint If you later want to have the same map area Pl Draw lines draw a green line take away by doubleclick Distance shows the distance in nautical miles and bearing angle measured clockwise from north below the map You stop this by a double click Show hide layer selection opens the window with the GIS layers Add edit or delete text on map Define Case opens the window where you give Outlet type Starting points Model choice Calculation parameters Continued Case continue a calculation which is just made A default suggestion stop time comes up giving one more day You can also continue a calculation that has been made earlier and saved in Save case below File then go to File and press Open Case You are asked where the saved file is and copy it to STW Most of the information in the Calculation parameters is given from the earlier executed forecast in the saved case and can therefore not be changed If the result from an earlier made forecast is verified against observations and there is a discrepancy between the last calculated position and the observation the starting position can be altered in Centre position by giving new Latitude and Longitude there New Stop time must be given as the forecast now is prolonged from the previous forecast The s
12. ncel When the parameters are given press Compute and start the calculation If you want to go back to the map instead of starting a calculation choose Cancel 5 9 Stop When a calculation is going on Calculation status shows the hours where the program is If you want to stop the calculation press Cancel 5 10 Common Information For scenarios the water temperature is a climatological value for each month Not shown The surface current from the numerical model is the current representing the layer between 0 and 1 meter 6 Menues in the upper frame The menu in Seatrack Web V nern is similar to the windows system with some choices at the top of the screen At the top frame are File View Layer and About File View Layer About File gives the following options Open Case when you want to open an existing calculated case Save Case when you want to save a calculated case When Save is done you choose the directory yourself Use suffix xml Save Map as image saves the map in a jpg format Email map image mails the map Exit close the application View gives the following options Vanern 370 m 2 days forecast HIRLAM tells you which period you have data Forecasted currents are generated once a day for every hour and 2 days ahead Input data shows what parameters you have chosen for the calculation Results table shows weathering properties currents and wind They can be plotted by your own choice La
13. ne PR F RT Pf fT Ff I Ball I ik or or s OR RR OR 8 KR RS MM OM MM SN KR NS NN MR RK RR RK ON RA AA 7 7 i oe eS 7 ra gt Re eae RPP ee TT 7 TEA DA AA E E Re E f A T TU AA E amp E a E L fl LS ro arrr TFA PP Pt PAT I of a fis ria ee w o og OR AON OO 8 ww P A RO Papo 7 Z Fj iyer eS an o rr SE I tr ja ts 7 E EN ASA IZ nn ep tT tT tf tf PT F PF FP r a aA 4 Oy y7 PO 4 Y a RP a FP rr ys s yy y y ow oy os s s RR A ds PAPERS pk ROR RR EP ESTEE PC HOS TOVAR cet hh ha Gow oso ee eee A lt P eee eT eT IRR et ee Pee ee eG SS ee he E AER A oe amp amp amp Poo SP ob OVR LT On a Fe ew Peat Caer OP OR oe eB 8 ye KF ae P GY AR a So Ow Oe G amp S ow gt or rr ar ss ED RR ae aa RA RAT SY na 4 4 t tT F T FT FT T PF PP A prada 2 p gt Fora a a a a a KR RR a a 4 2 1 2 2 2 ee et et ee 2 22 2222 2 AL Ny 74 Ld e A A A A 58 48 7 N 13 10 1 E SCALE 95075 55 CENTER 58 52 5 N 13 18 9 E a A Figure 11 Surface currents in a zoomed area without depth information 7 3 Save a case Save Case when you want to save a calculated case When Save is done you choose the directory yourself Use suffix xml 7 4 Show results in a table or plot View is shown in the upper frame Results table gives all the calculated data in ready to make plots You can make a plot of the oil s different states by marking the wanted variables and press Create chart down to the left The sum of all those makes
14. ow showing in the information square in the upper left corner of the map The popup menu can be used instead of the steps 7 2 Plot the wind the surface currents and ice Show wind Show i H Show surface cuments LJ ai Show wind plots the 10 meter wind The scale is given in the upper left corner of the map Choose the time from which you want the plot You can only look at a time covered by a made calculation If you want to look at an earlier made saved calculation then the data might be taken away from Available current fields and they can t be plotted You can also animate the wind Show surface currents plots the surface current see figure 11 The scale is given in the upper left corner of the map You can also animate the currents a x Seatrack File View Layer About AN RETRANS z A v z 2011 12 02 00 00 Show wind a ouments O Define case Cont case Delete case Calculation name AS N SN NOON SO a gs RR A RE EE SR ae ee VR ae catewitea ot UR 2014 12 03 00 01 Oe o ns 50 100 Curr cm s A E O RR RR RR RR SRE SE RSP CR SESE ER ee ee 2036 wind m s JE O A ne Ne De TS aa ee BE SE a EE RST EIS EE eR eet ee Sp Ag ON Nae Sy RN ps Se Se Se Se en LAN Eh eg eee Se AOA Se Ne Syr oN Sg Se Se SON Se Ne St Se SR ee ce SR ee ce ae aa set A
15. sible Spill area a multicornered polygon Particle positions make a great number of free particles in the map Fetch the red star when you want to mark the outlet position in the map Click once for every outlet position It is possible to move the corners of the spot You can always add more points between the green points which show the first chosen position and last chosen position To erase all the positions doubleclick 2 Draw Import or Add starting point s If you want to write the latitude and longitude in the table press Add Remember that it is degrees minutes and decimals of minutes You can also Edit or Delete point s that are chosen positions in the table It is also possible to import an algae file but we have no such files in V nern yet Choose Model in V nern there is only one model so 1t is already there Calculation Parameters press this and you will be able to choose the rest of the relevant input information 5 Calculation parameters and start a calculation 5 1 Time A Y T OCR Time Position Scenarios 8 Forward calculation Backward calculation L Scenarios with prescribed currents and winds V nern 370m 2 days forecast HIRLAM Start time UTC YYYY MM DD hh mm i Date Time Current sp Current Dir Wind Spee Wind Direc 2011 we wfz1 w o9 gt oo w Stop time UTC YY Y Y MM DD hh mm 2011 ME w 23 lv o0 lw 100 Outlet depth m 0
16. surface Objects substance Constant depth or Three dimensional spreading which is a passive tracer 5 3 Discharge Instantaneous spill the Amount is m or tonnes Decimals can be used e g 5 7 m Continuous spill Total amount Rate Decimals can be used e g 0 4 m hour Duration of the spill is given in days or hours 5 4 Scenarios Scenarios Scenarios with prescribed currents and winds 2011 17 30 13 I onea 10 eo Ie o o eo 2011 11 3016 110 90 zoei to bo 50 2011 113018 10 906 0 5 aa 2011113020 po 0 60 201302 Ho oo a E pap lap Figure 7 The table to fill in for a scenario calculation If you want to make scenarios which has nothing to do with reality you choose Scenarios with prescribed currents and winds The time period that is shown in the window is the same as at Time amp Position The user fills in the current every hour or at time steps of one s own choice Then by pressing FILL the hours in between the written data are filled with the nearest above information This gives a possibility to write new currents at fewer time steps then every hour The Current speed is the current speed in knots Current direction is the current direction towards in degrees measured clockwise from north 90 degrees means currents towards east 180 degrees means currents towards south etc Note that the prescribed current will be the same at all locations and at all depths Choose CLEAR to erase all data and g
17. tart time of the Continued Case is the stop time of the previous case and the new stop time is by default one day further ahead This can be altered New Other info below Calculation info can be written Delete case return to default settings in Define Case Position information and scale in the lower left corner You can see any position when moving the cursor in the map and the chosen scale 7 The calculation is ready Rie oa a 5 gt lt 4 E bonne case cont case Delete case Ss gt 14 lt gt bm 2011 11 23 00 00 Je H Shor wind rents C Show ice Calculation name i 4 E Calculated at UTC 2011 13 58 How showing UTC 2011 00 00 Y 1 Choose outlet type ARR 2 Draw Import or Add starting point s Unit Degrees and decimal minutes mor Add Edit Delete point s Latitude Longitude 113 11 324 13 10 280 13 10 671 Number of points 10 3 Choose Model V nern 370m 2 days forecast HIRLAM mu 4 Calculation parameters 59 12 2 N 13 42 9 E SCALE 792381 0 CENTER 59 00 0 N 13 07 8 E a E Figure 9 A result showing that the oil feels the coastline Figure 9 is shown when a calculation is ready It shows how the oil stops at the coastline and clearly shows the areas that are threatened O lt 1 lt 5 lt 20 lt 60260 m
18. w showing UTC TT E i j 2 Draw Import or Add starting point s Longitude 13 14 326 4 Calculation parameters 1 po 4 59034 N 12 22 0 E SCALE 390530 75 CENTER 58 48 2 N 13 10 7 E Ez a A Figure 5 Outlet specified by a polygon which partly covers land 5 2 Substance In Oil classes there are 3 different viscosity intervals Light Medium and Heavy oils A choice here 1s recommended if one does not have information about the oil type See fig 6 Choosing one of those gives the default values among the oils below Light Light Diesel Fuel Medium Intermediate Oil Heavy Bunker C The oils that emulsify are Light medium crude Heavy crude and Bunker C State of oil gt Fresn_ w State of oil Eee setect state y Heavy oils 1000 cSt ee Figure 6 Choice of viscosity range State of oil you have to select state if it is new oil choose Fresh oil but if the oil has been in the water for some time choose Weathered oil Evaporation and emulsification has stopped at the maximum value for Weathered oil Below Oil specific there are 38 specified oils to be chosen This is a possibility when one has more information about the oil Choose also State of oil Oil lumps gives 5 10 20 cm depth of the oil lumps Floating object algae can be partly above the water surface It is then possible to add an extra wind drag for the part that is above the water
19. yer Show hide layer selection gives the following options Static layers Name Time Layer descriptions Graphics R R R Lat Lon grid Text on map city Railroad N N RIE Roads River RI R Lakes 200m 3m E R 6m 10m 100m a a Ej El R R Dynamic layers Hiromb coastline 370m _ Hiromb Depth 370m When a box is chosen a label for each selected layer is shown Name amp Time amp Layer description means the grey square in the upper left corner of the map showing the name of the calculation the time it is made and the time of the result the GIS info and depths Graphics makes it possible to draw green lines anywhere in the map About information about the Seatrack Web V nern system Contact Contact persons 6 1 Tool buttons for the map view Define case Continue case or Delete case Seatrack Web s File View Layer About 2 2 e an Hd Ha FINIS E 2 Define case nt case Delete case Arrow shows an arrow where the cursor is Zoom is a zooming tool it is important that the area chosen has the cursor cross in the lower right corner and not further down in the map Otherwise another area is zoomed Center symbol gives the possibilty to move the map on the screen where you put the symbol the new center will appear Zoom in gives one step zoom every time you click in the map Zoom out gives one step zoom out for every click in the map y 2 Maxi
Download Pdf Manuals
Related Search