Global Ocean Sea Ice Concentration Time Series REPROCESSED (OSI-SAF) OSI-METNO-OSLO-NO (PM) EARTH SCIENCE>CRYOSPHERE>SEA ICE>SEA ICE CONCENTRATION>ICE FRACTION target-application#seaiceclimate Oceanographic geographical features satellite-observation sea_ice_area_fraction multi-year marine-safety weather-climate-and-seasonal-forecasting coastal-marine-environment marine-resources arctic-ocean antarctic-ocean Level 4 Not Applicable '''Short description:''' The CDR and ICDR sea ice concentration dataset of the EUMETSAT OSI SAF (OSI-450-a and OSI-430-a), covering the period from October 1978 to present, with 16 days delay. It used passive microwave data from SMMR, SSM/I and SSMIS. Sea ice concentration is computed from atmospherically corrected PMW brightness temperatures, using a combination of state-of-the-art algorithms and dynamic tie points. It includes error bars for each grid cell (uncertainties). This version 3.0 of the CDR (OSI-450-a, 1978-2020) and ICDR (OSI-430-a, 2021-present with 16 days latency) was released in November 2022'''DOI (product) :''' https://doi.org/10.48670/moi-00136 2010-11-26T00:00:00.00Z series SEAICE_GLO_SEAICE_L4_REP_OBSERVATIONS_011_009 eng No limitations on public access