Abstract

The Chinese Ocean Salinity Mission (COSM) is an ocean observation mission performed by the National Satellite Ocean Application Service (NSOAS), China Academy of Space Technology (CAST) and National Space Science Center (NSSC). It is the first satellite that has been used to obtain global ocean salinity information in China. This article mainly introduces the working principles of the COSM satellite, which are composed of the platform, two payloads, and the components of the ground segment. This article focuses on the structure and layout of the satellite ground segment, as well as its workflow during satellite operation. It also describes the calibration of payloads and the expected ocean salinity products. At present, the status of the COSM is normal, including its satellite and ground segment, and NSOAS has officially released ocean salinity data products from the COSM.

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