User Manual
Contents
1. Objects substance can be calculated at a Constant depth or Three dimensional spreading as 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 winda as e Current Di wi Aing Dire 2007 01 19 13 0 5 gi 10 0 2T 2007 01 1914 0 5 g 10 0 27 2007 01 1915 0 5 g0 10 0 2T 2007 01 1916 0 5 40 10 0 2T 2007 01 1917 0 5 gi 10 0 2T 2007 01 1918 0 5 g 10 0 2T 2007 01 1919 0 5 g0 10 0 2T 2007 01 19 20 0 5 gi 10 0 2T 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 15 The user fills in the current and wind every hour or at time steps of one s own choice Then by pressing FILL the hours below the written data are filled with the nearest above information This gives a possibility to write new currents at fewer time steps than every hour The Current speed knots is the speed in knots Current Direction degrees towards is the direction 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 same2. 31 9 6 Tips and info Normally when analyzing a case you probably start at the located oil spill and then step back in time and check and analyze all ships highlighted in black until ready Make the search time as short as possible to reject ships that are not interesting For example If the oil spill covers a large area then the spill 1s at least X hours old If information exists that the spill was not present at an earlier time then this time is the stop time Ships passing this point before this time are not interesting If a ship has been identified as a prime suspect at a certain time then it is possible to create a Forward case to see if the size of the spill will create a spill as the one found Then momentaneous or continuous can be chosen Depending on the length of the time period or uncertainty of the spills trajectory you may need to increase the search square to find the suspect When analyzing it can be necessary to use a smaller square so you don t miss fast going ships or catch ships that have been interpolated for a long time and therefore show an uncertain track If you get quite a lot of hits when loading AIS data for a case you may decide to split the analysis in two or more parts Set the time period to a smaller interval and do the analysis in separate steps instead For example Analyse the last day first and then the previous day after that separately The system interpolates to fill in where the ships
3. The wind forecasts used in Seatrack Web originate from the weather model at the European Centre for Medium Range Weather Forecasts ECMWF 5 days ahead and HIgh Resoluted Limited Area weather Model HIRLAM 11km 2 days ahead The wind forecasts used in Seatrack Web are from 10 meters height The user should be aware that smaller scale and local wind effects are not included into the Seatrack Web drift calculations The forecasted wind can be plotted 1 3 Ice information Ice and oil interaction was introduced in Seatrack Web during 2005 The user may select the Ice layer and see the ice cover in the Baltic Sea The accuracy of the forecasted ice cover is enhanced by daily assimilation of ice observations into the Hiromb model 2 Installation of Seatrack Web 2 1 System Requirements PC compatible Pentium 700 MHz 2 Mb video memory 17 1024x768 screen 256 Mb RAM Use Internet Explorer minimum version 7 0 Make sure to always use the latest Java version Internet connection is needed and should be as fast as possible A reasonable transfer speed is minimum 256 kilobit sec 2 2 Enter the Internet address Enter the Internet address http www smhi se seatrack in your Web browser 2 3 Installation of Java Web start This version runs via Java Web start This means that the Seatrack application now is installed once and automatically updated when needed When clicking start above when Java Web start is not install
4. Da be POI G oh oacsc ees ac S E E E A 24 Backward calculation from the detected spill site ccceccceeeeeeceeeeeeeeeeeeeenaes 24 Eoad A CAG a E E E E E 25 9 4 9 5 1 952 9 5 3 9 5 4 9 5 9 5 6 93 9 5 8 9 5 9 9 5 10 9 5 10 9 6 10 PIOUS AC KS saa ciaavid ENa 26 Working with the Ship Tack iosia a a a 27 S ACE a E er eritn Serene neon one eee ree Trt rer ty Seren reer 27 NV lI e E 27 RNP E EE APE emetic tebe E A an ene aie a atta E T A taatas 28 Sclec ne SMPTICk Soens ide tas alike aerial tice lai leeds eae teased 28 Draw a Hnesany wherein the DeUe ice cs oe a cnet orasuadeiandndyaded 28 Exa Ait Or AO kesesi E E deeded ede ties E E 29 Deleins SNIP ACK ees a O R 29 Explaination of the fable SHIPS 43 ciiex Wt cesta tciecttcion Ulesees asea 30 Delete case Or AIS diina O ON 31 To save a case and show it later in the STW application cccseseseeeeeeeeeees 31 To save a case and show it without the application sneneeeesesesssssssssssssseeeeeree 31 Tips an Oee a A bein mat areaecaacens 22 Annex 2 Satelhte detection S ossos ean S Aa 33 1 Introduction and Background Seatrack Web is developed at SMHI in close cooperation with the Danish Maritime Safety Administration Bundesamt fur Seeshifffart und Hafen and the Finnish Environment Institute The first version of Seatrack Web was introduced in 1995 and since then Seatrack Web has been used successfully in several oil spill cases It is also
5. Enter the Internet address which is http www smhi se seatrack in your Web browser The manual is found by clicking User manual Also Technical Documentation is here For support click Contact figure 1 Press Start Seatrack Web write User and Password press Login and the map in Figure 2 appears Seatrack Web Official HELCOM oil drift forecasting system developed and administrated by SMHI and DAMSA with SINTEF oil weathering technology included Start User news Seatrack Web User Manual 2009 08 12 New version 12th of August 2 5 2 A couple of new features only oil shall stick to the shore extra wind drag with decimals write text in the Technical map choose the same zoom as in earlier runs Documentation Download Java Web Start 2009 08 11 Plot winds and currents r es You must have Java 1 6 0_13 or higher to be able to plot wind and currents Contact 2009 02 01 Satellite detections of ail spills This is available for those having special admittence please contact support to get admittence 2009 01 01 Main responsible for STW forecasts and feed back to the system Finland SYKE Kai Rasmus kai rasmus ymparisto fi Russia MRCC Kaliningrad mroc mapkld ru Estonia Estonian Environmental Inspectorate Toomas Liidja toomas liidja kki ee Latvia Coast Guard Ojars Gerke ojars mrccly Lithuania MRCC Juozas Karalavicius juozas karalavidus msa lt Lithuania Klaipeda university Inga Dailidiene inga dailidi
6. Inc Description A aie Asc application along the lines of Illustrator w a i O Use Browser Unable to determine settings HTTP Proxy Your proxy server here HTTP Port Your proxy port here No Proxy Hosts Use commas to separate multiple hosts Exceptions from proxy settings lacalhost or tat canco Change the proxy settings to your server and port also add server exceptions if you have any then press OK 4 Quit Java Webstart 5 Restart the computer 6 Start Seatrack Manual 2 5 To look at the java console to know what is going wrong 1 Choose File Explorer Utforskaren and go to the file where the java program is installed on your system Example paths C Program Java jre1 6 0_02 bin C ProgramVava j2rel 4 2_O5 javaws C Program FilesVJava jrel 5 0_03 Could be any other path depending on where you initially installed java 2 Double click on javaws exe and the Java Web Start application manager programhanterare starts 3 Go in below File gt Settings or Edit gt Settings Inst llningar 4 Choose Advanced Avancerat 5 Click in Show Visa Java system window Java console and press OK Ready Alternative 2 4 instead of 2 5 above 2 Double click on javacpl exe and you come to Java control panel 3 Choose Advanced Avancerat 4 Click on Java consol and choose Show consol press Apply Tillampa and then OK 3 Start and Stop Seatrack Web 3 1 Start
7. below the map You stop this by a double click Show hide layer selection open close the window with the GIS layers Model choice Hiromb model 3 nautical miles choose between 5 days forecast or 2 days forecast or Hiromb model 1 nautical mile 2 days forecast Seatrack Web File View Layer About R E PIAA a xx 4 NSS Model Choice Continued Case Point Model Choice HIROMB 3 nm 2 days forecast HIRLAM C HIROMB 3 nm 5 days forecast ECMWF C HIROMB 1 nm 2 days forecast HIRLAM o New Case go to the Calculation Parameters See figure 3 Continued Case continue a calculation which is made before A default stop time is suggested giving one more day it can be changed check that data exist below View You can also continue a calculation that has been made earlier and saved in Save case 12 below File then go to File and press Open Case You are asked where the saved file is and copy it to STW Make outlet the red star is default in the cursor when starting a calculation Choose Point 1 position Line 2 4 positions or Area 3 4 positions Fetch the red star symbol when you want to mark the outlet position Doubleclick to give the outlet positions It is possible to move the corners of the spot with the mouse If you click more points then you have chosen the positions are deleted The rest of the buttons in the upper frame are active when you have a calculated case Delete case a cross return to defa
8. density wind and current data They can be plotted automatically by your own choice 10 Layer Show hide layer selection gives the following options 2 Seatrack Web File View Layer About Static layers RI Name Time Layer descriptions R Graphics Lat Lon grid Territorial Waters OUR Base Line Bridges Cities countries Danish economic zones DONA Maris response zones Bohuslan Area x Country Borders _ Baltic Sea Protected Areas _ Important Bird Areas _ Major ship routes Ship traffic separation v Text on map Dynamic layers Satellite outlet Plot r Hiromb coastline 3 nm _ Hiromb Depth 3 nm When this check box is selected 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 see below Static layers Graphics makes it possible to draw green lines anywhere in the map Lat lon grid plot the latitude and longitude grid Boundary for Territorial waters shows this border for all countries Base line shows this border along the Swedish coast Bridges the Oresound bridge and the bridge to Oland Cities and countries names Danish economic zone Maris response zones Exclusive Economic Zone EEZ information based on the Maritime Accident Response Information System MARI
9. 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 is deeper than 1 meter and less than 5 meters And so on 6 1 Visualisation of the result Show wind aa i s gt pa 2008 12 17 00 00 w i Sromwind C Show ice 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 hour To erase the trajectory click Trajectory again Time date and position are written every 15 minute if there is space If you then zoom more data will be written Seatrack Web File View Layer About TE ie Ns i Calculation name Calculated at UTC 2008 04 24 12 42 Now showing UTC 2008 04 29 00 00 x lala gt 04 lt gt pt 2008 04 29 00 00 w H Show ming Show surface A V 008 ere 23 00 56 10 77 N 16 32 20 E 03 04 28 14 00 66 09 10 N 16 28 60 E 0s 0428 40 00 56 07 34 N 16 27 08 E 008 0428 06 00 56 05 35 N 16 26 55 E F008 04 28 01 00 56 03 29 N 16 25 34 E sig 04 27 19 co Gn oi 45 N aa 24 2 E HUIS k L 26 0 nm ya 14 55 52 7 N 18 45 1 E O lt 1 lt 5 lt 20 lt 60 260 m Ld i fy lm Figure 7 Trajectory in a zoomed area Trace ON OFF and Animate all the results from the forecast are shown automatically once an
10. this point comes from real data If pink then no information was available and the track is interpolated linearly between the previous real point and the next real point AIS data are sometimes missing in some areas and then the analysis here are uncertain In order to show data from the ship in the area anyhow a track is interpolated Interpolated track is dashed Colour of a shiptrack is grey black or red Normally the colour is grey The shiptrack becames black at the moment when the ship is close to the spill at the time when the ship is inside a defined AIS search area presented with yellow on the screen You may click a gray shiptrack once and the colour turns into red Then you are able to see the time information at each cross At the cross where the mouse is located when clicking at the line is also shown the position and MMSI number See an example of a red shiptrack in the figure above 9 5 2 Search area You will see a yellow square around the centre point of the spill This is the search area It follows the spill if you step forward or backward or animate the spill 27 9 5 3 Ships The position of the ship is drawn as a green triangle on the shiptrack This symbol will move if you step forward or backward or animate the spill When the ship is within the yellow search area the track is black and close to the spill at this time 9 5 4 Selecting shiptracks R First select the Arrow tool in the menu furthest to the left T
11. 0 Delete undelete Save table Ship info Edit ship track Show track in map Java Application Window Ships The small boxes below the table Delete undelete a track explained above Save table use the prefix txt after the name Press a line with a ship it gets blue then choose Ship info and that track becomes red in the map and the table Ship Info for that ship comes up Edit ship track only for advanced users This makes it possible to add data from the log book when there is interpolated no data in the AIS information Interpolated data is shown in the table AIS signal with a No Doubleclick on the position you want to change the background becomes white Write the new number Press Enter Press Save in the bottom of the table The track is now altered in the map Ship info 273133800 Time 2009 07 20 00 00 JAIS signal 5 Yes 2009 07 20 00 15 Yes 2009 07 20 00 30 Yes 2009 07 20 00 45 2009 07 20 01 00 2009 07 20 01 15 59 062 2009 07 20 01 30 59 062 2009 07 20 01 45 59 062 2009 07 20 02 00 59 061 2009 07 20 02 15 59 061 20 353 2009 07 20 02 30 59 063 20 331 2009 07 20 02 45 59 0473 20 320599 2009 07 20 03 00 59 0316 20 3102 2009 07 20 03 15 59 0159 20 299799 2009 07 20 03 30 59 0002 20 2894 2009 07 20 03 45 58 984497 20 279 2009 07 20 04 00 58 968
12. 0 5629 92 1729 90 031 at 1 2010 10 19 1215 5630 01 173012 031 81 13 915 6 175 726 713 I9 98 2010 10 19 12 30 563011 1730 33 80 8 645 6 9159 178 7 714 2010 10 19 12 45 5630 20 1730 54 031 81 113 4 201 80 6 659 7 316 2 180 726 714 2010 10 19 qann_lsaanza lazanza l fond ana Azaa loina liaa van 727 Harman B ee ee eee ec to oo _ Evaporated oil Current speed knots To print results table Set cursor anywhere in the table _ Oil at surface m 3 _ Oil at surface lt Current direction degrees towards _ Press Ctri A to select all C Dispersed oil m 3 C Dispersed oil Wind speed mis Press Ctrl C to copy content Open program of your choice and use its paste command to paste content Example MS Excel C Volume m 3 _ Oil at sea bed m 3 _ Oil at seabed Wind direction degrees from _ Oil at shore m 3 _ Oil at shore O Viscosity cSt Create chart _ Water content Density kg m 3 Create chart Create chart i Close 21 Print Chart Close 7 Support Calculation problems customer relations Cecilia Ambj rn Oceanographer 011 4958174 0709 784488 Email Cecilia Ambjorn smhi se System or installation problems Hans Andersson Application Manager 011 4958218 E
13. 0 25 low 0 16 ENVISAT 2009 11 15 20 25 medium ENVISAT 2009 11 23 21 13 medium ENVISAT 2009 11 24 20 42 ENVISAT 2009 12 07 20 33 2009 12 09 05 31 9 CO aa co ho eid formation about the satellite detections File View Layer About Rizea six sie Continued Case ie 58 12 8 N 15 47 5 E SCALE 2867 120 8 CENTER 56 15 8 N 15 36 2 E m m Some satellite detections Locate show the spill in the map ID a STW number to identify the spill in the map Confidence low medium high Area km2 Length km of spill Satellite name Observations time UTC Exit close the application 33
14. 8 20 268599 2009 07 20 04 15 58 9531 20 2582 2009 07 20 04 30 58 937397 20 247799 2009 07 20 04 45 58 9217 20 2374 2009 07 20 05 00 58 906 20 227 2009 07 20 05 15 58 897873 20 230625 2009 07 20 05 30 58 889748 20 23425 2009 07 20 05 45 58 881622 20 237875 Save Close Java Application Window Show track in map makes that track black in the map It must then be marked as Undeleted in the first column 30 The columns The first 5 columns see head of column The 6 7 column show the time a ship enters the search area Entering area and the time it leaves the search area Exiting area 9 5 9 Delete case or AIS data You can delete the oil backtracking case and the AIS data by clicking the cross in the upper frame Delete case Delete AIS data by clicking Clear AIS data 9 5 10 To save a case and show it later in the STW application Click Save Case below File you choose the directory yourself The name of the case must have suffix xml if you have Java 1 6 or higher This means that you can show this at any time with animation of both AIS and the oil 9 5 10 To save a case and show it without the application If you want to save the case and show it at a later occasion and not in connection with the STW application Then there is a soft ware called Snag It which can be used The case can be copied to a cd for example
15. October 2010 Manual Seatrack Web A user friendly system for forecasts backtracking and presentation of spreading of oil chemicals and substances in water Version 2 If you by some reason can not make an emergency forecast ask SMHI s Contingency Centre at the Weather Service to make one There is open service all day round Phone 46 11 170104 9 1 9 2 9 3 Introduction and Background eesesssssseeceocccsssssececccosssssccecococsssseeceesosssss 4 DSC COAG OR model orssnesanennasa E e ssanacsamenceententatenuunanacnsensenacel os 4 1he weather OCIS socio estatincreccsycsaieocbawoetOsedsleasadadnascugycsacootausatSedesssnesiadaaccidearicetaost 4 loen o na Oe nnn oe meer tnT on nnn tre NaS onc Ton ener Tana eT tan etn ann E nr eee 4 Installation of Seatrack Web seteccssssssiessseanseassersecssveacacsssscesssssearbiwaesuneeiees 5 SY SUC HRC CICS eesosa e a EETA E E E EER 5 Enter the Internet address esscesnisiase aa i a aiaiai 5 l stallanon ort Jaya WeD Stait asacoiasesccesstonsczsaionscnacsataceiadenaceudsanscasadaeausnssatansiadencste 5 How to make proxy settings in Java Web Start cccccccssssssessseseeeeeceeeeeeeeeeeeeeeaaas 6 To look at the java console to know what is GOING WIONG ccccceeceeeeeeeeeeeeeeees 7 Start and Stop Seatrack Web sssssssssccsscccececccccccsosssssssesscccecececcsssssssssssoo 8 S e E E A E E 8 OD E E E 8 The graphical USEF INTCEIACE iecscaccsstiiscesdecenssviaticanstexesen
16. S in HELCOM http www helcom fi gis maris Bohuslan area especially for a Swedish application Country borders Baltic Sea Protected Areas BSPA Important Bird Areas IBA Major ship routes Ship traffic separation Dynamic layers Satellite outlet plot Hiromb coastline plot the outer border of the model s grid Hiromb Depth coloured depth information 11 About About Seatrack Web Credits to people 4 2 Tool buttons for controlling the map view and starting a calculation Seatrack Web File View Layer About Re SAIS FINS 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 possibility 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 Maximize scale in current window gives the whole map back x Set map scale choose your own scale and center point Scale Center lower left shows your scale and centre point If you later want to have the same map area a Add edit or delete text on map the text can be moved in the map Draw lines draw a green line take away by doubleclick Distance shows the distance in nautical miles and bearing angle measured clockwise from north
17. The surface current can be animated when you animate the oil spill Click Show surface currents and click Animate The ice can be animated when you animate the oil spill Click Show ice and click Animate Seatrack Web Bow File View Layer About l DEECEERE eee ere So A Calculation name A z E N akn a 03 19 00 0 lE 50 100 Curr SMa 1 2 10 20 30 Wine arf aor i fh patie me ah gers Fart lt 4 T ni i Bui t N aes A A f A Fi 4 oar 2 Pa 5 Se bar F S 59029 2 N 1713 3 E Java Application Window Figure 8 Surface currents in a zoomed area The ice cover in the Riga Bay has a vital influence on the currents 6 3 Save a case Save Case when you want to save a calculated case When Save is done you choose the directory yourself OBS If you use Java 1 6 or higher you must add xml suffix after the name of the file you want to save If you use earlier Java versions you can add it if you want 6 4 Start a continued case File View Layer About RIESIA s Newcase continueacase ie 33 P ta gt pi 2005 07 18 0000 H She ace cunent This is chosen when one wants to make a continuation of an earlier made and saved calculation One must open the earlier executed case if it is not just made and thus is in the computer Open Case below File in the upper frame Try to always save in a certain directory Press Continued Case in the upp
18. YYY MM Time Center pos Center pos Current Cur Wind s Win Volume m 3 Viscosity eSt Density Evapor Oil at s Oil at surface Disper Dispersed oil Oil at s Oil at sea bed Oil ats Oil at shore 2010 10 19 09 00 5628 73 1727 40 0 32 72 113 3 haa 100 0 1400 9004 o0 1000 100 0 oa 0 0 o foo oo o lola 2010 10 19 09 15 5628 85 172761 032 72 133 198 903 3032 9074 90 740 734 zE 2010 10 19 09 30 5628 95 1727 81 032 72 133 198 881 3627 9092 110 723 716 2010 10 19 09 45 5629 06 17 28 0 0 32 72 133 198 86 7 405 4 a104 123 699 691 2010 10 19 10 00 562917 1728 23 032 72 133 198 857 s339 9113 133 717 708 2010 10 19 10 15 5629 28 1728 43 98 84 8 4708 9121 141 738 729 2010 10 19 10 30 _ 56 29 39 2 84 1 497 9 EA 71 2 70 3 2010 10 19 10 45 _ 56 29 48 01 83 5 s29 9133 153 747 736 2010 10 19 00 5629 57 201 83 0 5438 9138 8 724 713 2010 10 19 11 15 5629 66 201 825 5639 9142 162 732 721 2010 10 19 11 30 5629 75 201 82 1 5823 946 166 729 717 2010 10 19 11 45 _ 56 29 83 2 81 8 599 5 915 0 16 71 4 70 3 201 e14 615 6 953 172 718 706 81 1 631 1 915 T3 0 LS LS A pe Pe E Foo Fa j Tame Fil CAED fo e j je ejejejelejej jeleje o0 0 9 9 0 9 0 090 0 090 0 0 0 d Oo 2010 10 19 12 0
19. ard calculated case Stop time Default time is the Stop time of your Backward calculated case This can be prolonged if wanted If a long period is chosen it takes a very long time to collect data Therefore less then 3 days is recommended Size of area n m The search area is a square and it follows the centre point of the 25 moving oil slick Deafult 12 n m is plus minus 6 n m around the centre point in all directions Can be modified Press OK and retrieve AIS data An information dialog showing that the system is active is now shown in upper right corner of the screen 9 4 Plot the ship tracks A dialog appears showing how many ship tracks that were found If no ships are found make a larger search area or a larger time interval If you still get no ships then AIS data is not available for this time or a problem has occurred If you get hundreds of hits you must narrow the area or shorten the time interval If data are missing because of technical reasons please contact the SMHI This shall not happen In the figure there was file missing of the 238 files every 15 minute in the area during the chosen time period PE Found 35 shipTracks 3 within search area Warning Missing 1 of 238 Als files Check what data was missing using the View Available Ais Data files command Java Application Window Press OK and the ship tracks are shown on the screen When searching for interesting ships the backward oiltra
20. at all locations and at all depths but varies in time The Wind speed m s is the speed in m s Wind Direction degrees from is the direction measured clockwise from north 90 degrees means wind from east 180 degrees means wind from south etc Choose CLEAR to erase all data and then give 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 100 particles Normal 500 particles or Detailed 2000 particles Sometimes one just needs a forecast very fast then Brief is recommended At other occasions a very high significance is needed and then many particles will improve the result This choice though can take quite a long time to calculate Normal is the default value 5 6 Calculation info Calculation info Calculation rare as Other info Defaut values Cancel Calculation name is the name you want to call the case This is later written in the 16 grey square in
21. ck can be followed Recommended is to step the spot every 15 minute It can also be animated but that is just to get an overview The information covers the period between the chosen Start time and Stop time and identifies all the ships that were inside the chosen yellow square This square moves with the oil slick to show the ships that were in the vicinity of the oil If the square is increased more ship tracks will turn up Note The chosen size of the square must be large enough so ships can not pass through the yellow search area In that case ships might be missed And small enough not to get too many ship tracks 26 9 5 Working with the ship tracks File View Layer About REO 8 33x7 N5 Moder choice New case Continued case W Area S tnost w X W v tat ay m d Jf Calculation name Calculated at low showing n g gt bf 2009 12 15 00109 ly H ONE a currents E Show ice py 7 l Pg 3 Ny UTC 2009 12 16 13 40 UTC 2009 12 15 00 00 pee 56 00 4 N 20 41 0 E Example of ship tracks and an oil spill 9 5 1 Ship tracks Ship tracks are drawn as lines with one small cross every 15 minute That means that about every 2nd position from the AIS database data exist every 6 minute is plotted If you zoom out the crosses are not shown If there are no crosses zoom in and they will appear The crosses are black or pink If black then
22. cked this directly in the map it is shown here You can change here if needed If you make a dot line triangle or square then some of the points can be on land 1f at least one of them is situated in the sea see Figure 4 13 Figure 4 Outlet specified by a triangular area which partly covers land Outlet depth is the initial depth of the spill The depth is given in meters decimals are possible 5 2 Substance In Oil classes there are 3 different viscosity intervals Light Medium and Heavy oils A choice here is recommended if one does not have information about the oil type See fig 5 Choosing one of these gives the default values among the Oils specific below Light Light Diesel Fuel Medium Intermediate Oil Heavy Bunker C Substance Oil classes State of oil Medium oils 100 1000 cSt Select state Y 2 Oil specific State of ail Figure 5 Choice of viscosity range Below 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 first 11 specified oils to be chosen Most of those are oil ranges many different oil types but it is more specific then Oil classes This is a possibility when one has more information about the oil Choose State of oil When Rebco oil is wanted choose Light Medium Crude T
23. detesecssasteivensunwosess 9 Menties in the Upper frame sssini reenen r iii n i seeds 9 Tool buttons for controlling the map view and starting a calculation 12 Choose calculation parameters and start a calculation cccccccsees 13 Tine S POSON een a OO E ae Rrena 13 NS I e TEE T A AE E EA EEE 14 NSC D O e E E EE E E 15 Ce ANOS PA E E E AE A O E EAA O A E 15 CaN UAL OMOPUONS ssiri eE e Ean e ei 16 Calcalation Aga chec esta cedsesnecansnatetede uta tes oaveaneunnseatese ie SEE E ria 16 MAY GCS aa E assent 17 CCB SG AICS E o D R A EEE E AE E EEE 17 SE o P E A E PE E E A seem ee EE E E E EE E E A 17 Common Iniormati Oi ss505esccnescsaisiazeiassaseetosusaesedccnmsarencndeetanSientsoevaantedesiwmauenmaanten 17 TANG CANCUNALION 15 reddy sissscssetavecssdessusassensseateinssinntarnesastattnesisinteisscains 18 V ISUAMISAtION OF ING TOSUIN xiccrasssuortevwantdvassaasnerasastacadaissntcasstduaiewianladaociacentsntareees 18 Plot the wind and the surface currents cccccccccsssssssseeeseeeecceeeeeeeeeeeeeaaaaeeeeeees 19 BI eM erste E A 20 Soi COMUNE CASS aea e na corssateenandataameaseseacnsenicoacsasseeonsaness 20 PPP POU Be Fe SUING aa ccsaetes caters neato cou dc sated baedeoek E udtamaehvencasuenbocaseaess 21 SUPPONI seusiccs cavovcensencswes A E EE S 22 Error and warning Messages ssssssssessceecccccocscocsssssssssssecececeeoossssssssssoe 22 Annex 1 AIS Automatic Identification System Shiptracks 24
24. developed further to be a well functioning tool for authorities responsible for oil spill response in the Baltic Sea region Seatrack Web s main purpose is to calculate the spreading of oil that has come out in the Gulf of Bothnia the Gulf of Finland the Baltic Sea the Sounds the Kattegat the Skagerack and part of the North Sea out to 3 E The program can also be used for other substances than oil such as chemicals algae and objects In addition to an oil drift forecast it is 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 When you login at SMHIs Seatrack Web you have access to forecasted current fields of the Hiromb model HIgh Resolution Operational Model for the Baltic which is a 3 dimensional circulation model covering the whole Baltic Sea and part of the North Sea The forecasts are made daily and up to 5 days forecasts are included into Seatrack Web Every 3 hour new current fields are used in Seatrack Web The horizontal grid resolution is now either or 3 nautical miles giving current values at every or 3 nm In Seatrack Web the forecasted surface currents 0 4 m can be plotted for 3 nm Hiromb gives the currents at 50 different depth levels and those influence the drift and spreading of the substance 1 2 The weather models
25. ed on your computer you will be redirected automatically to Sun s download site for Java Web start Follow the instructions installing Java Web start only needs to be done once JAVA WEB START DOWNLOAD Click on the below link to continue Dew nec Newy Already downloaded and installed Java Web Start Please restart your browser so it will pick up the new settings For Netscape 6 6 01 please use the non javascript version of the demos page For more information please refer to the README and the developer s guide If this is your first visit on http www smhi se seatrack you will be redirected to when pressing Start Seatrack http java sun com products javawebstart needdownload html picture above If the redirection to Java Web start download site does not work automatically use the link http java sun com products javawebstart needdownload html to download Java Web start manually Press Download Now Select Download J2SE 5 0 JRE SDK Select Download JRE 5 0 Update 5 or any newer update version number Choose from the list of platforms to download the installation package 2 4 Howto make proxy settings in Java Web start 1 Start Java Webstart from the icon on your desktop or from the start menu 2 Choose File and Preferences 1f nothing is happening please wait Java Web Start Application Manager Mel File Application View Help Draw 4 Made Ey Sun AE
26. ene ku It Poland Maritime Search amp Rescue Service Marek Reszko marek reszko sar gov pl Germany BSH Frank Janssen frank jansseni bsh de Denmark Damsa Johan Mattsson jma frv dk Sweden Coast Guard Thomas Fag thomas fago Gcoastguard se Figure 1 The Seatrack Web start page with Seatrack user news 3 2 Stop If you want to stop Seatrack Web go to File and click Exit 4 The graphical user interface Seatrack Web File View Layer About REELT 54 1 711 cofia cones cane saa Te x 51 Pw ieren Calculation name i AP CS C ated at Cy 2009 12 09 12 05 4 e iia eo h i 59 32 1 N 39 31 7 E SCALE 8838096 0 CENTER 60 08 7 N 19 10 2 E Figure 2 Map over the area 4 1 Menues in the upper frame The menu in Seatrack Web 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 The name of the case must have suffix xml if you have Java 1 6 or higher Save Map as image saves the map in a jpg format Email map image mails the map Read Bohuslan info especially for a Swedish application Download Bohuslan data especially for a S
27. er frame Most of the information in the Calculation parameters is given from the earlier executed forecast in the saved case and can 20 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 start time of the Continued Case 1s 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 6 5 Print plot the results File is shown in the upper frame Save Map as image save the map on the screen as jpg Email map as image mails the map View is shown in the upper frame Results table gives all the calculated data in ready to make plots One can see how big part of the oil that is stranded at the shore Oil at shore and how much that is on the sea bed Oil at sea bed You can make a plot of the oil s different states by marking the wanted variables and press Create chart down to the left 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 Substance MEDIUM OILS 100 1000 CST Date Y
28. hour To the left of Animate is Trace which means that one sees every hourly spot in the same view The hour 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 Now showing in the information square in the upper left corner of the map The popup menu can be used instead of the Steps 6 2 Plot the wind and the surface currents Showy wind ay gt i lt gt pa moso w i Showmindl irante C show ice Show wind plots the 10 meter wind In a zoomed area every 5 value is plotted When you have the full map every arrow is plotted 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 and they can not be plotted The wind can be animated when you animate the oil spill Click Show wind and click Animate Show surface currents plots the surface current see figure 8 In a zoomed area every 19 5 value is plotted The scale is given in the upper left corner of the map
29. hree oils emulsify Light medium crude Heavy crude and Bunker C 2 new heavy oils are introduced in a test phase Orimulsion test and High Viscosity Fuel Oil test The knowledge about these oils is limited and weathering processes are not activated The densities are fixed to 1020 kg m Orimulsion and 1015 kg m High Viscosity Fuel Oil 14 Below those oils there are 25 oils from Sintef s Oil Weathering Model All emulsify except Sleipner IKU and Marine Diesel IKU Balder medium Ekofisk Blend medium Grane medium Gullfaks light Kristin light Norne medium Oseberg A light Sleipner light Statfjord A light Ula light Valhall ight Aasgard light DUC light Siri light South Arne medium Fuel oil no 6 LS heavy IF 180 heavy IF 380 heavy IF 30 Bunker medium Marine diesel light IFO 380 Fu Shan Hai heavy Oil lumps give 5cm 10cm or 20cm thickness of the oil from the surface and downwards Floating object Algae Floating algae behaves like a Floating object with 0 extra wind drag on object Floating algae file is described above Floating object with extra wind drag an object can be partly above the water surface It is possible to add extra wind drag for the part above the water surface See Wind drag W Floating object Algae Wind drag Floating object with extra wind drag zsa Floating algae Floating algae tile Floating object with extra wind drag
30. ith the oiltracks the probability to indentify a suspected ship increases 9 2 Backward calculation from the detected spill site Before you can load AIS data you must have a calculated case backwards to work with The case is created by making a Backward calculation where the positions of the spill are given by double clicking in the map up to 4 corners Choose New case and choose Backward calculation Give the relevant Start and Stop time Press Compute Check that AIS data are available choose View and Available AIS data files It shows data 30 days back satrack Web View Layer About HIROME 3 nm 2 days forecast HIRLAM HIROME 3 nm 5 days forecast ECMWF HIROME 1 nm 2 days forecast HIRLAM Available AIS data files AIS ships Ship info Input data Results table 24 9 3 Load AIS data Go to the File menu and select Load AIS data Seatrack Web File View Layer About Open Case Save Case Save Map as image Email Map image Read Bohuslan info Download Bohuslan data Change password Load AIS data Clear AIS data Load algae data Clear algae data Satellite detections of oil spills Exit A pre filled dialog appears You can choose a size of the square relevant for the situation Load Ais Data Ed Start time UTC 2008 07 11 08 00 Stop time UTC 2008 07 11 00 00 Size of areacn m Cancel Java Application Window Start time Default time is the Start time of your Backw
31. mail Hans Andersson smhi se SMHI 60176 Norrk ping Sweden Phone 46 11 4958000 Fax 46 11 4958001 8 Error and warning messages Error messages are shown below the map in red letters Err Internal input output error Invalid start or stop time Forward backward calculation inconsistent with start stop time Invalid start position Invalid specification of outlet area Outlet on land or outside model domain Invalid substance value or unit Substance not found in oil database In the weathered state all of this volatile oil has evaporated Invalid discharge value or unit Invalid current options value or unit Invalid calculation option Backward calculation not possible for fresh oil Continuous discharge not possible for weathered oil 22 Calculation with floating object requires depth 0 Invalid input data Substance outside boundary Internal error 23 9 Annex 1 AIS Automatic Identification System Shiptracks The AIS information is available when you are authorized by Helcom and implemented by the Seatrack Web administrator SMHI cecilia ambj rn smhi se Check this by looking in the File menu if Load AIS data is not shown you have no access 9 1 Background The AIS functionality in Seatrack Web is a tool to identify the ship which causes an oil spill The AIS function gives the shiptracks in the area where the spill was detected and backwards to its probable origin By using the shiptracks simultaneously w
32. o show the time of a ship track make one quick click on the track A selected shiptrack is red it is black 1f the ship is close to a spill Arrow tool Normally time hh mm is displayed every 15 minutes If these texts are too close together then some will be hidden Both date and time are shown for midnights yyyy mm dd hh mm When you click on a point using the arrow tool more information will be shown such as date time position and the ship s MMSI number This shows also when you click on an interpolated part of the track 9 5 5 Draw a line anywhere in the picture You can draw a line anywhere in the picture Choose Draw lines Keep the button down where the line shall start and during the whole line The coordinates follow the mouse so you can choose how to draw the line The line is green in the application see figure below Take it away by activating the icon and double click on the line When you save a case the line is not saved File View Layer About klmle 4 s s gt lt 1 Nsm Modei Choice New Case Continued case We fares 3 4 post I X a amp gt ad lt gt pa 2008 12 15 0 00 Iz JH eee ee spunea ml Shows Calculation name fA Calculated at UTC 2009 12 16 13 40 How showing UTC 2009 12 15 00 00 4 Wa 56 10 0 N 19 13 3 E SCALE 1583492 4 CENTER 56 33 5 N 19 27 7 E 28 9 5 6 Extra information Tracks with black crosses ha
33. 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 Cancel Stop 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 Forecasted water temperature and salinity are taken from the Hiromb model and used for viscosity and evaporation Density is calculated in Seatrack Web based on temperature and salinity Turbulence is taken from the Hiromb model 17 6 The calculation is ready Seatrack Web File View Layer About _ als 1 SIS i esce sie E 1S oT gt e Calculation name Calculated at UEC 2008 04 24 12 32 Ne Now showing UTC 2008 04 29 00 00 y f R 2 sa 11 0 1nm 55 ery N 12 TET E agg z f o i lt 5 lt 20 lt 60 260 a Figure 6 Result showing that the oil stops at the coastline Figure 6 is shown when a calculation is ready It shows how the oil stops at the coastline and clearly shows the areas that are threatened Surtace Y i lt 5 lt 20 lt 60 260 rm This scale shown
34. ult settings when a calculation is made Position information lower left you can see any position when moving the cursor in the map Scale Centre lower left shows your scale and centre point of the map 5 Choose calculation parameters and start a calculation 5 1 Time amp Position Calculation parameters Time amp Position W Forward calculation O Backward calculation HIROMB 3 nm 2 days forecast HIRLAM Start time UTC i a eC hh rrr zoos_ w i2_ ws x stop time UTC YYYY MM DOD hk mm zoos fj jehe 7 Start position OD hiv Win 000 Otlet depth im Latitude Longitude 00 00 000 00 00 000 oo 00 000 Outlet shape 2 00 00 000 o0 00 000 Ties as MW Point 1 position 4 loo 00 000 00 00 000 Area 3 4 positions i Figure 3 Kind of calculation start and stop time start positions and outlet depth Forward calculation make a forecast up to 5 days ahead and start 30 days back in time Here you can see which models you have chosen Default of Stop time is always tomorrow at 24 00 UTC even though there are more days this is changed manually Start time is always present time 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 Start position is given as degrees minutes and decimals of minutes OBS not minutes and seconds If you have cli
35. ve more information about the ship in the track Select the track you want more ship information about by clicking at a small cross and select View in the menu and Ship Info Sometimes there is too little data then go along the track and click on another cross Then the dialog below comes up Ship info Ship info ke Value hd fe SI 266041000 MONWMBEER ALLSIGh MAME OF SHIP TYPE OF SHIF ESTIMATION MAYS TATUS OslTlOn IME OSAC CURACY OG fee Application Window When you choose Save info use the prefix txt after the name of the file 9 5 7 Deleting shiptracks To remove a shiptrack from the screen double click on it But to take away the right track you have to double click at a cross at the chosen track and have the very point of the arrow close to the cross otherwise the wrong track might be deleted If you want it back go to the table AIS ships click the line with the ship it becomes blue and press Delete undelete in the left bottom see figure below You can also delete a ship track by taking it away in a table where all ship tracks are shown Go to View and AIS ships press Delete undelete in the AIS ships table When deleted it is shown by YES in the first column in the table 29 9 5 8 Explaination of the table Ships Deletefundelete MMSI Name Dest o pomoze 8914142 CARINA IMMINGHAMITAL 2008 07 09 17 00 2008 07 09 18 00 20963000 rroozoz ILA RIGA 2008 07 09 23 00 2008 07 09 23 0
36. wedish application Change password Load AIS data especially for those having access to AIS data Clear AIS data especially for those having access to AIS data See Annex 1 Load algae data a special file processed at SMHI from satellite detections of algae iad ars 127 0 nm Pitti Example of algae ia detected on satellite Clear algae data Satellite detections of oil spills see Annex 2 Exit View gives the following options Available files HIROMB 3 nm 2 days forecast HIRLAM every 6 hour shows which period you can make an oil drift forecast with HIRLAM Forecasted currents and winds are generated every third hour and available 30 days back in time from today at 00 00 Available files HIROMB 3 nm 5 days forecast ECMWE every 12 hour shows which period you can make an oil drift forecast with ECMWF Forecasted currents and winds are generated every third hour and available 30 days back in time from today at 00 00 Available files HIROMB 1 nm 2 days forecast HIRLAM every 12 hour shows which period you can make an oil drift forecast with HIRLAM Forecasted currents and winds are generated every third hour and available 30 days back in time from today at 00 00 AIS information see Annex1 Available AIS data files AIS ships Ship info Input data shows what parameters you have chosen for the calculation Results table shows weathering properties volume viscosity
37. were between known positions This works well if the AIS information is not lost for very long times In that case the ships true course may differ from the interpolated track A ship track may seem to start or stop in the middle of the sea This is because of the chosen start and stop time The position may be lost for some time at the end of the search period Then the system has no chance to interpolate the positions at the end In this case it is possible that the ship is not included in the search The crosses on the ship tracks show the latest known 6 minute position each whole 15 minutes This gives some uncertainty for the position along the track but this should not a big problem 32 10 Annex 2 Satellite detections Satellite detections of oil spills only for those having access to satellite data You can choose a period From To during which you want to see all detected oil spills Press Search Delete detections from map takes away the detections This is only available for users working with finding illegal polluters Satellite detections of oil spills From To 2009 11 01 2009 12 09 Delete detections from map J 9 search hits ID Confidence Area km2 Length km Satellite Name Observation time UTC medium 63 2 8 RADARSAT2 2009 11 03 05 34 high 1 95 ENVISAT 2009 11 07 21 16 low 0 81 RADARSAT1 2009 11 12 05 19 medium 1 25 ENVISAT 2009 11 15 2
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