The European Space Agency has developed a multidisciplinary Earth‐observation instrument that focuses on biological ocean observations. This Medium Resolution Imaging Spectrometer (MERIS) also provides a remote‐sensing capability for atmospheric and land surface related studies. MERIS is the first space‐borne wide‐field imaging spectrometer operated in a push‐broom mode. The instrument measures the solar reflected radiation in fifteen spectral bands in the visible and near‐infrared regions of the spectrum and at two spatial resolutions (300 m and 1200 m). Of particular interest is the ability to programme the position, width and gain of the spectral bands in flight. This allows a large set of applications, making the instrument concept also attractive for future Earth Watch missions. The instrument is equipped with a calibration unit based on flat plate sun‐illuminated diffusers to support in orbit calibrations required to fulfil the demanding radiometric and spectrometric accuracy requirements. MERIS has been the subject of extensive on‐ground characterisation. The instrument has demonstrated a remarkable stability of its radiometric and spectral response during the ten years of operation in orbit.
Medium Resolution Imaging Spectrometer for Ocean Colour onboard ENVISAT
Optical Payloads for Space Missions ; 91-120
2015-12-10
30 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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