Oceanic CDRs include measurements of oceans and seas both surface and subsurface as well as frozen state variables.
NOAA CDRs are derived from a variety of satellites and instruments. The launch, maintenance and decommissioning of satellites can be found on the WMO's Observing Systems Capability Analysis and Review Tool (OSCAR) website.
As satellites or instruments change, there will be changes to how CDR data is derived and provided. Information on the impact of each individual CDR will be updated as resources allow. The Oceanic NOAA CDRs are also available via Amazon Web Services (AWS).