Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations, Version 1

This data set contains gridded brightness temperatures and sea ice concentrations for both polar regions. Brightness temperature and sea ice concentration grids have 25 x 25 km grid elements in polar stereographic projection.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 9, 2026, 00:18 (UTC)
Created April 1, 2025, 18:02 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 2561df0e-304e-4415-9d37-c7f6c0a69367
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/QOZIVYV3V9JP
license https://www.usa.gov/government-works
modified 2026-06-03T16:52:52Z
programCode {026:000}
publisher NASA NSIDC DAAC;NASA/GSFC/EOS/EO
resource-type Dataset
source_datajson_identifier true
source_hash de31dcbb9ff4b38b2cf8f997c6b3ac4bb00818848ceb2bbd7401c2511e92d61a
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180.0, "NorthBoundingCoordinate": -39.0, "EastBoundingCoordinate": 180.0, "SouthBoundingCoordinate": -90.0}, {"WestBoundingCoordinate": -180.0, "NorthBoundingCoordinate": 90.0, "EastBoundingCoordinate": 180.0, "SouthBoundingCoordinate": 30.0}]]
temporal 1978-10-25/1987-08-20
theme {"Earth Science"}