Operative remote sensing in Finnish Enviroment Institute
In Finnish Ensviroment Institute (SYKE) satellite images are used for daily monitoring of enviroment. Sea surface temperature, algal blooms and water turbidity are measured during summertime. In snow smelting period during sprig, snow cowered area is estimated over 5000 drainage basins covering whole Finland. Results are presented daily 4 hours after the satellite overfligh in thematic maps if it is not too cloudy.
The satellite images used in operative monitoring are delivered to SYKE from Finnish Meteorological Institute. Images are processed almost automatically to end products.
Also, land cover monitoring is operational in SYKE. Contrary to the daily monitoring, mapping of land cover concentrates on long term changes. The objective is to produce information of land use and land cover in Finland and surrounding areas. Sea surface temparature
Sea surface temperature is measured from satellite images every year from May to October. Instrument used here is NOAA-AVHRR (National Oceanic and Atmospheric Administration - Advanced Very High Resolution Radiometer). SYKE receives 1-4 images daily. The spatial resolution (the pixel size) of the images is 1km x 1km. Algal blooms in the Baltic Sea
Algal blooms in the Baltic Sea are monitored from July to August. Images are produced using two wavelength bands. The istrument used is ESA's Envisat Meris which images SYKE receives on daily basis. Turbidity of surface water
The turbidity of surface waters in the Baltic Sea is monitored between May and September. Turbidity is derived from ESA's Envisat Meris satellite images which SYKE receives on daily basis. The spatial resolution of the images is 300m x 300m. Chlorophyll-a of the Gulf of Finland
The chlorophyll-a (chl-a) of the Gulf of Finland and the Gulf of Bothnia is monitored between May and September. Chlorophyll-a is derived from ESA's Envisat Meris satellite images which SYKE receives on daily basis. The spatial resolution of the images is 300m x 300m. Snow melt monitoring
Finnish Environment Institute estimates snow covered area (SCA) during the melting period from satellite images. Estimates are made operatively from over 5000 drainage basins covering whole Finland. The istrument used is NASA's (Natilonal Aeronautics and Space Administration) Terra Modis which images SYKE receives on daily basis. The spatial resolution of the images is 500m x 500m. Lake ice snow coverage for Finnish lakes
Finnish lakes ice snow coverage is observer between Mars and May. Instrument used here is NASA's Terra Modis. The spatial resolution of the images is 250m x 250m. Land cover
The objective of land cover monitoring is to produce information of land use and land cover in Finland and surrounding areas. Different land use types are classified into build-up and agricultural areas, forests, semi-natural surfaces, bogs and water bodies. This information is produced by integrating satellite observations with digital maps and field measurements. Further information
Remote sensing team (syke_rs_oper), Finnish Environment Institute (SYKE), Geoinformatics and Land Use Division,
group@ymparisto.fi [group=syke_rs_oper]
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