# Commission Implementing Decision (EU) 2018/620 of 20 April 2018 on the technical specifications for the Copernicus service component pursuant to Regulation (EU) No 377/2014 of the European Parliament and of the Council (Text with EEA relevance), Division 5.1: Satellites-Based Observation

Extent: E+W+S+N.I.

CMEMS shall provide products based on operational satellite. Even more satellite observations shall be used by CMEMS for climatology, reanalysis and validation purposes, from past missions or from satellites that do not deliver data in real-time.
The most important types of data used in CMEMS shall be from spectroradiometers (to measure chlorophyll content, organic and mineral content, sea-surface temperature and sea-ice cover), infrared radiometers (to measure sea-surface temperature), microwave radiometers (to measure atmospheric water vapour content, atmospheric water liquid content (clouds), rain rates, sea-ice concentration, type, extent, sea-surface temperature, salinity), altimeters (sea-surface height, ocean surface wind speed, wave height, sea ice), scatterometers (to measure wind speed and heading, rain, sea-ice concentration) and synthetic aperture radars (to measure wind and the surface wave field and ensure sea-ice monitoring).
Sentinel-1, Sentinel-3 and Jason-3 space observations shall be fully integrated in CMEMS products and the portfolio shall be enriched with wave data and new biogeochemical products. Sentinel-2 shall be progressively integrated to improve the biogeochemical product portfolio.

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Source: https://www.legislation.gov.uk/eudn/2018/620/annex/III/division/5/division/5.1 (the official version)
Page: https://openlegislation.uk/eu-decision-2018-620/annex-III/division-5/division-5.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.