Data Set ID: 

EASE-Grid Sea Ice Age, Version 4

This data set provides weekly estimates of sea ice age for the Arctic Ocean derived from remotely sensed sea ice motion and sea ice extent. The temporal coverage for this data set is January 1984 through December 2021. For more recent data, see the Quicklook Arctic Weekly EASE-Grid Sea Ice Age data product (

This is the most recent version of these data.

Version Summary: 

The input ice motion data used for this data set is now derived from the Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors Version 4 data set. Data files are now provided in netCDF format.

COMPREHENSIVE Level of Service

Data: Data integrity and usability verified; data customization services available for select data

Documentation: Key metadata and comprehensive user guide available

User Support: Assistance with data access and usage; guidance on use of data in tools and data customization services

See All Level of Service Details

Data Format(s):
  • NetCDF
  • PNG
Spatial Coverage:
N: 90, 
S: 29.7, 
E: 180, 
W: -180
Platform(s):Aqua, BUOYS, DMSP 5D-2/F11, DMSP 5D-2/F13, DMSP 5D-2/F8, DMSP 5D-3/F17, MODELS, NOAA-10, NOAA-11, NOAA-14, NOAA-16, NOAA-7, NOAA-9, Nimbus-7
Spatial Resolution:
  • 12.5 km x 12.5 km
Temporal Coverage:
  • 1 January 1984 to 31 December 2021
Temporal Resolution7 dayMetadata XML:View Metadata Record
Data Contributor(s):Mark Tschudi, Walter Meier, J Stewart, Charles Fowler, Jim Maslanik

Geographic Coverage

Once you have logged in, you will be able to click and download files via a Web browser. There are also options for downloading via a command line or client. For more detailed instructions, please see Options Available for Bulk Downloading Data from HTTPS with Earthdata Login.

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.

Tschudi, M., W. N. Meier, J. S. Stewart, C. Fowler, and J. Maslanik. 2019. EASE-Grid Sea Ice Age, Version 4. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: [Date Accessed].

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No technical references available for this data set.

How To

How to Import EASE-Grid Sea Ice Age in to ArcGIS
This article describes the actions to perform in order work with NSIDC-0611 in ArcGIS. At the time of writing, this tutorial is relevant for ArcMap10.5 and earlier. The following steps will show you how to prepare the binary files for import, format conversion, and geolocation/projection. 1.... read more
Programmatic Access Guide for Data on daacdata.apps
Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system. We provide basic command line Wget and curl instructions for HTTPS file system downloads below. For questions about programmatic access to NSIDC... read more