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Sea-Land biogeochemical linkages (Baltic+ SeaLaBio)

The Sentinel satellites of the Copernicus programme offer an excellent opportunity for monitoring the state of the Baltic Sea. The current constellation provides daily coverage in moderate resolution (S3 OLCI with 300 m pixels) and twice-weekly coverage in high resolution (S2 MSI with 10-60 m pixels) with spectral characteristics suitable for estimating turbidity, Chlorophyll a and CDOM. These are related to the land-to-sea fluxes of carbon that occur in coastal zones (see the figure below). The goal of the ESA funded project Baltic+ SeaLaBio (Sea-Land Biogeochemical linkages) running from Dec 2018 to May 2020 is to develop methods for assessing carbon dynamics and eutrophication in the Baltic Sea through integrated use of EO, models, and ground-based data.

We will concentrate on the following topics:

  • Improvements in atmospheric correction and inwater bio-optical inversion of satellite data in the complex absorbing waters of the Baltic Sea

  • Synergistic use of S2 and S3 for Level2 products in order to improve the coverage in coastal regions

  • Utilization of EO for generating input data for the Ecological ReGional Ocean Model (ERGOM)

  • Comparisons of EO, model and in situ data in order to investigate how well carbon dynamics can be inferred from satellite data

EO products (in blue) and BGC model (ERGOM) state variables (in green) that are related to the carbon cycle in surface water layer. Large image

The project is under ESAs EO4society programme and part of the Baltic Regional Initiative activities. It is also linked to the Baltic Earth community



Published 2019-03-21 at 7:16, updated 2020-08-31 at 10:48