Frequency of occurrence of turbid waters (from 0 to 100 %) along the coast between Marseille and the Spanish border (2003)

Figure Created 12 Nov 2009 Published 12 Nov 2009 Last modified 29 Nov 2012

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Topics: Marine ,

Last upload:: 17 Jul 2006
Methodology:: Ocean colour imagery is used to delineate turbid from clear water masses on a daily basis. Therefore daily mapping of turbid areas is made available and when gathered over one year allow deriving statistics on turbid water locations. The delivered product consists of regional seas mapping of statistics of turbid waters occurrence. This turbidity results from the extension of river plumes (main inputs are reported on the maps), and also from re-suspension (due to wave action) of sediments from the bottom in shallow waters. The results here have been derived from ENVISAT/MERIS data over the year 2003. The on-ground spatial resolution is 2 km. The detection of "turbid" water is based on a threshold value of water reflectivity at given wavelength of the spectrum equivalent to a sediment concentration of 0.75g/m3. Turbid water index is an operational product of the Coastal GMES Service Element Coastwatch/Marcoast.
Rights:: EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright). Copyright holder: Earth Observation - Environment (ACRI-ST).
Owners:: Earth Observation - Environment (ACRI-ST)
Processors:: The European Topic Centre on Land Use and Spatial Information
Figure type:: Map