Water chlorophyll-a concentration estimated from satellite images
Envisat satellite operated by European Space Agency has stopped sending data to Earth. Therefore near real time Meris data, used in water quality monitoring, is not available. Instead NASA's Aqua/Modis instrumen will be used.More information: ESA news.
Satellite remote sensing is used during the open water season from May to September to monitor the chlorophyll-a (chl-a) of surface water in the Baltic Sea. Satellite images of the region are available daily; however, cloud cover often prevents the estimation of chl-a, at least in some portion of the Baltic Sea. During sufficiently clear days the chl-a values are presented on thematic maps using a continuous colour scale.
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Chlorophyll-a, the Gulf of Finland, 8th May 2006.
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Further Information
Jenni Attila, Finnish Environment Institute (SYKE), Geoinformatics Division, firstname.surname@ymparisto.fi
Mikko.Kervinen, Finnish Environment Institute (SYKE),Geoinformatics Division, firstname.surname@ymparisto.fi
Hanna Alasalmi, Finnish Environment Institute (SYKE),Geoinformatics Division, firstname.surname@ymparisto.fi
Saku Anttila, Finnish Environment Institute (SYKE), Geoinformatics Division, firstname.surname@ymparisto.fi
Disclaimer
Finnish Environment Institute (SYKE) / Geoinformatics Division has produced these Remote Sensing products. The products are based on NOAA AVHRR (NOAA), TERRA/AQUA MODIS (NASA) or ENVISAT MERIS (ESA) satellite observations. NOAA AVHRR and TERRA MODIS images are received by Finnish Meteorological Institute. ENVISAT MERIS images are received from ESA/Kiruna Envisat web file server. SYKE should be mentioned as a source if data is used in publications or in presentations or made available to the public in some other way. In case of scientific publications which explicitly make use of the products the appropriate references are to be inquired from the remote sensing group (syke_rs_oper): group@ymparisto.fi [syke_rs_oper]
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