Swedish Meteorological and Hydrological Institute

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Presentation transcript:

Swedish Meteorological and Hydrological Institute SeaTrack Web ”An operational web-based oil drift forecasting system for the Baltic” Swedish Meteorological and Hydrological Institute Lars Johansson 9/21/2018

You will see A comparison of forecast and observations for one particular oil spill accident A few details about SeaTrack Web If you are interested, we invite you to try yourself... The comparison was compiled by Johan Mattsson of the Royal Danish Administration of Navigation and Hydrography 9/21/2018

The Accident May 31 2004 the ship “Fu Shan Hai” was struck by another ship north of Bornholm. “Fu Shan Hai” started going down. The crew was evacuated within two hours. “Fu Shan Hai” sank to a depth of 65 meters. 1700 m3 of heavy oil began to leak. The leak continued for several days. 9/21/2018

9/21/2018

100 km 9/21/2018

Oil started leaking 2004-05-31 at 18.50 UTC 9/21/2018

situation on June 2 around 1300 UTC (+42h) Observation Forecast 9/21/2018

situation on June 3 around 0400 UTC (+57h) Observation Forecast 9/21/2018

situation on June 4 at 1500 UTC (+92h) Observation Forecast 9/21/2018

situation on June 4 at 2000 UTC (+97h) Observation Forecast 9/21/2018

situation on June 10 at 0600 UTC (+227h) Observation Forecast 9/21/2018

Observations Made by aeroplane, visually and with radar The radar (SLAR) sees capillary waves Capillary waves are damped by oil Thus, a surface oil film appears dark to the radar 9/21/2018

Forecasts up to +48h Atmospheric model Seatrack Ocean model www users Wind Atmospheric model Seatrack Wind pressure... Current waves... www Ocean model 9/21/2018

Processes in SeaTrack Evaporation Emulsification Sinking Rising Stranding Sedimentation Dispersion/turbulence, horizontal and vertical 9/21/2018

SeaTrackWeb is optimised to Meet user requirements Use correct physics Return a result within 1 minute 9/21/2018

For a password Call me! +46-31-751 8966 Mail me! Lasse.Johansson@smhi.se Version 2 is coming up soon… 9/21/2018

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