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Teaching material – Remote sensing detection of Chlorophyll a and transparency for EU directives

Point of contact
Selima Ben Mustapha
Swedish National Space Agency
Hemvärnsgatan 9
SE-17104 Solna
Phone: +46-8-40 90 77 73


The teaching material includes exercises about retrieving Chlorophyll a (Chl a) and transparency in Estonian coastal areas and L. Peipsi, using the ESTHub satellite data processing portal by the Estonian Land Board and SeNtinel Applicatio n Program (SNAP).

The aim of the tutorial is to show how satellite-based products can support the monitoring under the EU Water Framework Directive (WFD) and Marine Strategy Framework Directive (MSFD). We will cover the steps necessary for the task:

  1. Single point time-series;
  2. Spatial analyses
  3. Status assessment according to WFD and MSFD classifications.

Additionally, a short overview of the MSFD and WFD is given with a more precise focus on detecting Chl a and transparency, which are the main direct indicators of eutrophication. This document includes information about the potential retrieval schemes of both parameters from Copernicus data for the Baltic Sea and Lake Peipsi.