Presenter: Luciana Fenoglio-Marc (University of Bonn)

Description:
  Sub-mesoscale features in the North Sea-Baltic Sea transition zone correspond to upwelling events and water transport. The transport is mainly driven by sea level differences and the flow by barotropic pressure gradient. The Gotland basin in the central Baltic basin is dominated by the Gotland gyro with mean cyclonic basin scale circulation of radius 25-35 km. In situ campaign experiments are planned on the two ground track segment of the SWOT fast sampling phase orbit and are part of the AdAC activities. Here we analyse the pre-SWOT status with concurrent SAR altimetry, ocean models and SWOT simulation of the CNES Large Scale Simulator. Further on, we compare with in situ data and previous campaign data. At these small scales, ocean dynamics evolve rapidly, and the combination of SSH data with other satellite or in situ data with different space-time coverage is a challenge.