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Validation of MERIS products for Skagerrak and Norwegian Coastal Waters

Kai Sørensen(1), Are Folkestad(1) and Carsten Brockmann(2)

(1) Norwegian Institute for Water Research, Gaustadalleen 21, 0349 Oslo, Norway
(2) Brockmann Consult, Max-Planck-Str. 2, 21502 Geestacht, Germany

Abstract

MERIS has for about 6 years delivered satellite products for the Skagerrak Sea and Norwegian coastal waters. The quality of the data has been tested in several national and international projects. The water types in the area has been investigated for the IOP and the relation between the pigments absorption (apig443) and scattering coefficient, (bp443) to the Chlorophyll-a and TSM.

After the second reprocessing of the MERIS data the algal_2 product improved significantly since the new scaling factor was close to the one determined for the area. The scaling factor for TSM was not changed and has also been in good agreement with the in situ data. The agreement between the MERIS product and the in situ data decreases close to the coast and in the fjords. The impact of this adjacency effect on the product will be discussed.

In the area several Ferrybox-systems operate which give good opportunity for collecting high frequent match-ups data. Matchups-samples are collected for analysis Chl-a, TSM and yellow substance including bleached particle absorption (YSBPA). The possibility of using Ferrybox sensor data like chlorophyll-a fluorescence and turbidity has been investigated and has shown potential.

The latest results from the ESA and Norwegian Space Centre (NRS) validation project VAMP, the InterReg project NorSEN and the NRS project SATOCEAN will be presented.

 

Workshop presentation

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry