NOAA Climate Data Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE), Version 1

This NOAA Climate Data Record (CDR) is a record for the Northern Hemisphere (NH) Snow Cover Extent (SCE) spanning from October 4, 1966 to present, updated monthly after the 10th of each month. Data prior to June 1999 in the NH SCE CDR are based on satellite-derived maps of NH SCE produced weekly by trained NOAA meteorologists. In June 1999 weekly NOAA NH SCE maps ceased production, and were replaced by daily SCE output from the Interactive Multisensor Snow and Ice Mapping System (IMS). The weekly SCE maps are digitized to an 88x88 (cells) Cartesian grid laid over a NH polar stereographic projection. Each grid cell in the NH SCE CDR has a binary value, indicating snow covered or snow free. The NH SCE CDR has been used in international assessments of climate variability and change, and in investigations regarding the role of snow cover in the climate system. Mapping accuracy is such that this product is considered suitable for continental-scale climate studies. The data are updated monthly in netCDF file format with variables including SCE and National Meteorological Center (NMC) grid (88x88 cell) coordinates.

Data and Resources

Field Value
accessLevel public
accrualPeriodicity R/P1M
bureauCode {006:48}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier gov.noaa.ncdc:C00756
language {en-US}
modified 2012-01-01
old-spatial {"type": "Polygon", "coordinates": [[[-180.0, -1.0], [180.0, -1.0], [180.0, 89.0], [-180.0, 89.0], [-180.0, -1.0]]]}
programCode {006:059}
publisher DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
resource-type Dataset
source_datajson_identifier true
source_hash 4b0d5431ca9ba08701a1ad1b598e078a5b53c0f8
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-180.0, -1.0], [180.0, -1.0], [180.0, 89.0], [-180.0, 89.0], [-180.0, -1.0]]]}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • amsr-advanced-microwave-scanning-radiometer
  • amsu-b-advanced-microwave-sounding-unit-b-amsu-b
  • aqua
  • aqua-earth-observing-system
  • ascat
  • avhrr-advanced-very-high-resolution-radiometer
  • ckan
  • climate-lab
  • dmsp-defense-meteorological-satellite-program
  • doc-noaa-nesdis-ncdc-national-climatic-data-center
  • earth-science-cryosphere-snow-ice-snow-cover
  • earth-science-terrestrial-snow-ice-snow-cover
  • essa-environmental-science-services-administration
  • geo
  • geographic-region-northern-hemisphere
  • geoss
  • gms-4-geostationary-meteorological-satellite-4
  • gms-5-geostationary-meteorological-satellite-5
  • gms-japan-geostationary-meteorological-satellite
  • goes-7-geostationary-operational-environmental-satellite-7
  • goes-8-geostationary-operational-environmental-satellite-8
  • goes-9-geostationary-operational-environmental-satellite-9
  • goes-noaa-geostationary-operational-environmental-satellites
  • meteosat
  • meteosat-5-meteosat-operational-programme-2-mop-1
  • meteosat-6-meteosat-operational-programme-3-mop-1
  • metop-meteorological-operational-satellite
  • modis-moderate-resolution-imaging-spectroradiometer
  • mviri-meteosat-visible-and-infra-red-imager
  • national
  • nesdis
  • noaa
  • noaa-11-national-oceanic-atmospheric-administration-11
  • noaa-14-national-oceanic-atmospheric-administration-14
  • noaa-15-national-oceanic-atmospheric-administration-15
  • noaa-2-national-oceanic-atmospheric-administration-2
  • noaa-3-national-oceanic-atmospheric-administration-3
  • noaa-4-national-oceanic-atmospheric-administration-4
  • noaa-5-national-oceanic-atmospheric-administration-5
  • noaa-6-national-oceanic-atmospheric-administration-6
  • noaa-7-national-oceanic-atmospheric-administration-7
  • noaa-9-national-oceanic-atmospheric-administration-9
  • north-america
  • rutgers-climate-gsl-global-snow-lab
  • rutgers-university
  • seviri-spinning-enhanced-visible-and-infrared-imager
  • sms-synchronous-meteorological-satellites
  • ssmi-s-special-sensor-microwave-imager-sounder
  • terra-am-1
  • terra-earth-observing-system
  • tiros-n-television-infrared-observation-satellite-n
  • u-s-department-of-commerce
  • united-states
  • vas-vissr-atmospheric-sounder
  • vertical-location-land-surface
  • vhrr-very-high-resolution-radiometer
  • video-camera
  • vissr-visible-and-infrared-spin-scan-radiometer
isopen False
license_id notspecified
license_title License not specified
maintainer DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
maintainer_email snow_cover_extent_contacts@noaa.gov
metadata_created 2025-11-21T05:58:10.591790
metadata_modified 2025-11-21T05:58:10.591794
notes This NOAA Climate Data Record (CDR) is a record for the Northern Hemisphere (NH) Snow Cover Extent (SCE) spanning from October 4, 1966 to present, updated monthly after the 10th of each month. Data prior to June 1999 in the NH SCE CDR are based on satellite-derived maps of NH SCE produced weekly by trained NOAA meteorologists. In June 1999 weekly NOAA NH SCE maps ceased production, and were replaced by daily SCE output from the Interactive Multisensor Snow and Ice Mapping System (IMS). The weekly SCE maps are digitized to an 88x88 (cells) Cartesian grid laid over a NH polar stereographic projection. Each grid cell in the NH SCE CDR has a binary value, indicating snow covered or snow free. The NH SCE CDR has been used in international assessments of climate variability and change, and in investigations regarding the role of snow cover in the climate system. Mapping accuracy is such that this product is considered suitable for continental-scale climate studies. The data are updated monthly in netCDF file format with variables including SCE and National Meteorological Center (NMC) grid (88x88 cell) coordinates.
num_resources 6
num_tags 60
title NOAA Climate Data Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE), Version 1