Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent, Version 3

Data set id:

NSIDC-0046

DOI: 10.5067/EF7M3I1AUBD6

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.

Armstrong, R. & Brodzik, M. J. (1997). Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent. (NSIDC-0046, Version 3). [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. https://doi.org/10.5067/EF7M3I1AUBD6. [describe subset used if applicable]. Date Accessed 12-14-2024.

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

Initial release

Overview

The Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent Version 3 product and Version 3.1 update combine snow cover and sea ice extent at weekly intervals from 23 October 1978 through 24 June 2007, and snow cover alone from 3 October 1966 through 23 October 1978. The data set is the first representation of combined snow and sea ice measurements derived from satellite observations for the period of record. Snow cover extent is based on the digital NOAA-NESDIS Weekly Northern Hemisphere Snow Charts, revised by D. Robinson (Rutgers University) and regridded to the EASE-Grid. The original NOAA-NESDIS weekly snow charts are derived from the manual interpretation of AVHRR, GOES, and other visible-band satellite data. Sea ice extent is regridded to EASE-Grid from Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data. Designed to facilitate study of Northern Hemisphere seasonal fluctuations of snow cover and sea ice extent, the data set also includes monthly climatologies describing average extent, probability of occurrence, and variance. Data are provided in the Northern Hemisphere 25 km equal-area grid (NSIDC Nl EASE-Grid). Data are provided in flat, unsigned binary files and are available via FTP.

Parameter(s):

ICE EXTENTSNOW COVER

Platform(s):

DMSP, DMSP 5D-2/F11, DMSP 5D-2/F13, DMSP 5D-2/F8, GOES, GOES-7, Nimbus-7

Sensor(s):

SMMR, SSM/I, VAS

Data Format(s):

Binary

Temporal Coverage:

23 October 1978 to 24 June 2007
3 October 1966 to 24 June 2007

Temporal Resolution:

7 day

Spatial Resolution:

25 km

25 km

Spatial Coverage:

N:

90

S:

0

E:

180

W:

-180

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

View Metadata Record

Data Access & Tools

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

Help Articles

How to Articles

How do I import EASE-Grid 2.0 snow cover and sea ice data into ArcGIS?

Learn how to import EASE-Grid 2.0 data files into ArcGIS in this step-by-step help article