| STUDY OF SEA SURFACE TEMPERATURE IN THE MIDDLE AND SOUTHERN PARTS OF CASPIAN SEA USING NUMERICAL SIMULATIONS |
| Paper ID : 1028-SMPR-FULL |
| Authors: |
|
Maryam Shiea * Fourth floor, No 3, 29th Faramarz Abbasi, Faramarz Abbasi Blvd. Mashed, Iran |
| Abstract: |
| In this study, the sea surface temperature in the middle and southern parts of the Caspian Sea for 2004 was studied using the three-dimensional ocean model COHERENS. The model is based on the hydrostatic version of the Navier-Stokes equations. The hydrodynamic part of the model uses the equations of temperature and salinity, and the momentum equations use the Boussinesq approximation, the assumption of vertical hydrostatic equilibrium, and the in compressible continuity equation. The model was forced by climatologic six hourly atmospheric forcing. Simulation results show that, the winter water temperature of the coastal area of the Caspian Sea was 4 to 7 degrees lower than the middle Caspian Sea region. During summer the temperature of the shallow coastal waters in these areas was much higher compared to the middle region due to its shallower depth. In the summer the eastern coast of the middle part of the Caspian Sea experiences an upwelling that are closely related to the predominant northerly winds in summer. According to this phenomenon the temperature of the sea surface in the eastern coast of the middle Caspian Sea is cooler than regions further away from the coast by about 5 oC. Satellite SST (Sea Surface Temperature) data often show relatively colder waters along the coast with filaments penetrating offshore from the upwelling region and these have a relatively good coordination with simulation results on the same day. |
| Keywords: |
| Caspian Sea, sea surface temperature, COHERENS model, climatologic forcing, upwelling, Satellite SST |
| Status : Paper Accepted (Poster Presentation) |
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