Return to search results
NOAA/NMC/CAC Arctic and Antarctic Monthly Sea Ice Extent, 1973-1990, Version 1
Sea ice extent from January 1973 through August 1990 was digitized from weekly operational sea ice charts produced by the Navy/NOAA Joint Ice Center. Charts were digitized by hand using a 1 degree latitude x 2.5 degrees longitude grid. The grid boxes were then summed in 1 degree latitude x 10 degrees longitude slices, and the ice covered area computed. The data represent the extent of sea ice at the end of each month, given for 36 10-degree longitudinal sectors in each hemisphere. Data were provided by the NOAA National Weather Service National Meteorological Center (NMC) Climate Analyses Center (CAC).
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "Earthdata Forum",
"@type": "vcard:Contact",
"hasEmail": "mailto:earthdata-support@nasa.gov"
}
|
| description | Sea ice extent from January 1973 through August 1990 was digitized from weekly operational sea ice charts produced by the Navy/NOAA Joint Ice Center. Charts were digitized by hand using a 1 degree latitude x 2.5 degrees longitude grid. The grid boxes were then summed in 1 degree latitude x 10 degrees longitude slices, and the ice covered area computed. The data represent the extent of sea ice at the end of each month, given for 36 10-degree longitudinal sectors in each hemisphere. Data were provided by the NOAA National Weather Service National Meteorological Center (NMC) Climate Analyses Center (CAC). |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Data Information (HTML)",
"format": "HTML",
"mediaType": "text/html",
"downloadURL": "https://doi.org/10.7265/N5Z60KZ1"
},
{
"@type": "dcat:Distribution",
"title": "Data Information (Unknown Format)",
"format": "BIN",
"mediaType": "application/octet-stream",
"downloadURL": "https://noaadata.apps.nsidc.org/NOAA/G00917/"
}
]
|
| identifier | 10.7265/N5Z60KZ1 |
| keyword |
[
"earth-science-sea-ice-cryosphere-ice-extent",
"earth-science-sea-ice-cryosphere-sea-ice-concentration"
]
|
| landingPage | https://noaadata.apps.nsidc.org/NOAA/G00917/ |
| modified | 2026-02-17 |
| programCode |
[
"026:000"
]
|
| publisher |
{
"name": "NSIDC",
"@type": "org:Organization"
}
|
| spatial |
"["CARTESIAN",[{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":-50.0,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":-90.0},{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":90.0,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":50.0}]]"
|
| temporal | 1973-01-31/1973-01-31 |
| theme |
[
"Earth Science"
]
|
| title | NOAA/NMC/CAC Arctic and Antarctic Monthly Sea Ice Extent, 1973-1990, Version 1 |
