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OLCI is an optical instrument used to provide data continuity for ENVISAT's MERIS. OLCI is a push-broom imaging spectrometer that measures solar radiation reflected by the Earth, at a ground spatial resolution of 300 m, in 21 spectral bands.

The primary objective of OLCI products is to screen the ocean and land surface to harvest information related to biology. OLCI also provides information on the atmosphere and contributes to climate study.

OLCI instrument schematic

Figure 1: Schematic View of the OLCI Instrument