Due to the fact that the transmittance of the atmosphere and its clouds are inversly related to the reflectance for solar radiation, values of the global radiation at ground can be determined from digital satelite images measured in the spectral range of solar radiation. First estimates have shown that monthly averages of global radiation are accurate within 6 to 7 %. Within the project SUNSAT, the global radiation reaching Europe and Africa will be determined for a period of 2 complete years (Jan. 1985 - Dec. 1986) from the routinely collected 3-hourly low spatial resolution (30 - 50 km) METEOSAT- ISCCP Data Set. The 1/2-hourly high resolution (2.5 - 5.0 km) METEOSAT 2 Data will be used to determine the global radiation over the restricted area of the Sahel Zone. Additionally, for ground truth comparison, as many as possible pyranometer measurements made over the African continent during 1985 to 1986 will be collected.


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    Title :

    SUNSET: Solar radiation data from satellite measurements


    Additional title:

    SUNSAT: Daten der Sonnenstrahlung vom Satelliten aus gemessen


    Contributors:
    Raschke, E. (author)


    Publication date :

    1988


    Size :

    1 Seite


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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