U.S. National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format, 1972 - 2007, Version 1

NOTE: The data product titled U.S. National Ice Center Arctic and Antarctic Sea Ice Concentration and Climatologies in Gridded Format supersedes this product. It begins with charts from January 2003 and is updated weekly.

The U.S. National Ice Center (NIC) is an inter-agency sea ice analysis and forecasting center comprised of the Department of Commerce/NOAA, the Department of Defense/U.S. Navy, and the Department of Homeland Security/U.S. Coast Guard components. Since 1972, NIC has produced Arctic and Antarctic sea ice charts. This data set is comprised of Arctic sea ice concentration climatology derived from the NIC weekly or biweekly operational ice-chart time series. The charts used in the climatology are from 1972 through 2007; and the monthly climatology products are median, maximum, minimum, first quartile, and third quartile concentrations, as well as frequency of occurrence of ice at any concentration for the entire period of record as well as for 10-year and 5-year periods. These climatologies and the charts from which they are derived are provided in the 25-km Equal-Area Scalable Earth Grid (EASE-Grid) binary (.bin) format. The climatologies are also available in ArcGIS geodatabases (.mdb), and GIF format browse files (.gif) are also provided.

To view the browse files and compare climatological periods visually, choose Search Database under the Download Data tab.

This is the most recent version of these data.

Parameter(s):	Sea Ice > Sea Ice Concentration > SEA ICE CONCENTRATION	Data Format(s):	Binary ArcGIS GIF
Spatial Coverage:	N: 90, S: 45, E: 180, W: -180	Platform(s):	AIRCRAFT, DMSP, Nimbus-7, SHIPS
Spatial Resolution:	25 km x 25 km	Sensor(s):	SAR, SMMR, SSM/I, VISUAL OBSERVATIONS
Temporal Coverage:	1 January 1972 to 31 December 2007 (updated 2009)	Version(s):	V1
Temporal Resolution	7 day	Metadata XML:	View Metadata Record
Data Contributor(s):	U.S. National Ice Center, Florence Fetterer, Charles Fowler

Geographic Coverage

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As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

U.S. National Ice Center. Compiled by F. Fetterer and C. Fowler. 2006, updated 2009. U.S. National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format, 1972 - 2007, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: https://doi.org/10.7265/N5X34VDB. [Date Accessed].