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Gridded Monthly Sea Ice Extent and Concentration, 1850 Onward, Version 1
Entry ID: G10010_1

Abstract: Observations from historical sources are the basis of this monthly gridded sea ice concentration product that begins in 1850. In 1979, these sources give way to a single source: concentration from satellite passive microwave data. The historical observations come in many forms: ship observations, compilations by naval oceanographers, analyses by national ice services, and others. Monthly sea ice concentration is given in a 1/4 degree latitude by 1/4 degree longitude grid. In addition to the concentration array, for each month a corresponding source array indicates where each of 16 possible sources is used. The file of concentration and source arrays conforms to NetCDF-4 standards.

Purpose: Scientific Research
Related URL
Description: Direct download, with optional registration page.
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Geographic Coverage
Spatial coordinates   
  N: 89.9   S: 30.1   E: 180.0   W: -180.0

Data Set Citation
Dataset Title: Gridded Monthly Sea Ice Extent and Concentration, 1850 Onward, Version 1
Dataset Publisher: National Snow and Ice Data Center
Version: 1
Dataset DOI: 10.7265/N5833PZ5
Temporal Coverage
Start Date: 1850-01-01
Stop Date: 2013-12-31
Location Keywords
Data Set Progress
Data Center
National Snow and Ice Data Center Supplemental Info
Data Center URL:

Data Center Personnel
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City: Boulder
Province or State: Colorado
Country: USA
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2015-12-29
Last DIF Revision Date: 2019-04-16