Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4

The main parameters for this data set are snow cover and sea ice extent, provided on the Northern Hemisphere EASE-Grid 2.0 projection at a grid cell size of 25 x 25 km. Snow cover extent is based on the NOAA/NCDC Climate Data Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE) by D. Robinson (2012) and regridded to the EASE-Grid. The NOAA/NCDC CDR of Northern Hemisphere Snow Cover Extent data were derived from the manual interpretation of AVHRR, GOES, and other visible-band satellite data (Helfrich et al. 2007). Sea ice extent is derived from Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data (NSIDC-0051; https://nsidc.org/data/nsidc-0051) and regridded to the EASE-Grid. This product is designed to provide a consistent weekly time series of snow cover from October 1966 through January 2023 and sea ice from October 1978 through January 2023.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated October 20, 2026, 05:19 (UTC)
Created April 1, 2025, 18:07 (UTC)
Identifier 10.5067/P7O0HGJLYUQU
Modified 2026-10-15T20:12:04Z
Theme {"Earth Science"}
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id b620c949-03ad-490a-ad94-fe4ac8dbabe3
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
license https://www.usa.gov/government-works
programCode {026:000}
publisher NASA NSIDC DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 697a057172b8c3a8f4529d98e5bb3c7293e47512d018e13e0c61bdc0ae513e53
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180.0, "NorthBoundingCoordinate": 90.0, "EastBoundingCoordinate": 180.0, "SouthBoundingCoordinate": 0.0}]]
temporal 1966-10-03/2023-01-01