Gridded Monthly Sea Ice Extent and Concentration, 1850 Onward, Version 1

Data set id:

G10010

DOI: 10.7265/N5833PZ5

Data Citation and Acknowledgment
As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility.

Walsh, J. E., Chapman, W. L. & Fetterer, F. (2015). Gridded Monthly Sea Ice Extent and Concentration, 1850 Onward. (G10010, Version 1). [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. https://doi.org/10.7265/N5833PZ5. [describe subset used if applicable]. Date Accessed 12-12-2024.

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There is a more recent version of these data.
Version Summary

Initial data release.

Overview

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.

Parameter(s):

SEA ICE CONCENTRATION

Platform(s):

DMSP, SHIPS

Sensor(s):

SSM/I, VISUAL OBSERVATIONS

Data Format(s):

NetCDF

Temporal Coverage:

1 January 1850 to 31 December 2013

Temporal Resolution:

1 month

Spatial Resolution:

1/4 degree

1/4 degree

Spatial Coverage:

N:

89.9

S:

30.1

E:

180

W:

-180

Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

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This data set has been retired. There is a more recent version of these data.

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