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Temporal Development of Water Constituents in the Baltic Sea during 2004

Harald Krawczyk(1) , Andreas Neumann(1) , Thomas Walzel(1) , and Hans-Georg Guder(1)

(1) German Aerospace Center, Rutherfordstreet 2, 12489 Berlin, Germany

Abstract

The Baltic Sea as the largest brackish water basin is a very important factor for ecosystem assessment in Europe. Therefore it is important to follow regularly its ecological state on a global scale in general and the coastal zones in particular. MERIS on ENVISAT in its 300m full resolution mode is a powerful instrument for this purpose. Due to its high spectral resolution it allows an effective interpretation of complex case-2 waters, to which the Baltic Sea belongs. For this purposes the Principal-Component Inversion-Algorithm (PCI) was developed, taking into account the specific optical properties of the Baltic Sea.

DLR operates a complete receiving-processing-archiving system for full-resolution MERIS Products. It is actually in the phase of integration into an operational environment at DLR's ground segment and will allow an effective access to MERIS data. Particularly one has the opportunity, basing on this facility, to generate time series over longer periods for climatological investigations.

In the presentation there shall be demonstrated the interpretation Algorithm together with the inherent optical model embedded in the MERIS value-adding system.

The time series of MERIS data from 2004 will be demonstrated and investigated regarding climatological questions like statistics, chronological development etc. As an additional result maps characterising the ecological state shell be demonstrated.

 

Workshop presentation