Blooms in the Oder estuary

Sentinel-2 MSI acquired on 07 May 2018 at 10:20:19 UTC
Sentinel-2 MSI acquired on 06 June 2018 at 10:20:19 UTC
Sentinel-2 MSI acquired on 31 July 2018 at 10:20:21 UTC
Sentinel-2 MSI acquired on 06 October 2018 at 10:10:21 UTC
Author(s): Sentinel Vision team, VisioTerra, France -
Keyword(s): Water colour, river, coastal, bloom, upwelling, pollution, water quality, Germany, Poland, Baltic Sea
Fig. 1 - S2 (06.10.2018) - 4,3,2 natural colour, moderate stretching - White algae filaments spread in the Oder lagoon (aka Szczecin lagoon).
Fig. 2 - 07.05.2018 - A strong stretching reveals a multicolour bloom in the Bay of Pomerania, in the southwestern Baltic Sea.
Fig. 3 - 16.07.2018 - A green bloom shows in the coastal lagoons and along the coast of Poland.
Fig. 4 - 26.07.2018 - The large majority of the Szczecin lagoon waters come from the Oder, that brings fertilizers into these shallows waters.
Fig. 5 - 31.07.2018 - Notice the upwelling, here in cyan, that faces both the Bay of Greifswald at west and the Bay of Pomerania at south.
Fig. 6 - 06.06.2018 - Even visible with soft stretching parameters, this recurrent upwelling fits the shape of the bathymetry.