GSICS
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GSICS Inter-Calibration

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The World Meteorological Organization (WMO) and the Coordination Group for Meteorological Satellites (CGMS) have implemented a Global Space-based Inter-Calibration System (GSICS), which is intended to establish a consistent calibration of satellite measurements from different instruments operated by different satellite agencies and to tie these measurements to absolute references.

GOS Overview
The role of the Global Space-based Inter-Calibration System (GSICS) with respect to the "end-to-end Sytem" for Meteorological Satellite Data

Accurate calibration of satellite instruments against common references allows taking the best benefit of space-based observations, in particular for climate change detection and improved weather and climate predictions.

To learn more about this initiative please go to the GSICS Portal http://gsics.wmo.int

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