Data Set ID:

MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Night, Version 6

MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Night (MOD29P1N) data set contains tiles of daily 1 km resolution nighttime ice surface temperatures and quality assessment data, gridded to the Equal Area Scalable Earth Grid (EASE-Grid).

Note: Version 6 reprocessing was completed in October, 2015. Forward processing will continue for both Version 5 and Version 6 for approximately one year, after which Version 5 will be discontinued.

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Version Summary:

Sea ice extent and ice surface temperature algorithms and data sets are the same as Version 5. However, revisions and improvements for Version 6 to algorithm inputs have improved sea ice outputs as follows:

  • Revised calibration of MOD02 thermal bands 31 and 32 decreased calculated brightness temperatures by about -0.01 K and improved accuracy for very cold scenes;
  • The Version 6 land/water mask in the MOD03 geolocation product increased the accuracy of water body and coastline maps;
  • Revisions to the MOD35_L2 cloud mask algorithm have increased the accuracy of cloud detection.

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Geographic Coverage

Data Set Tabs

Spatial Coverage:
  • N: 90, S: -90, E: 180, W: -180

Spatial Resolution:
  • 1 km x 1 km
Temporal Coverage
  • 2000-02-24
Temporal Resolution:
1 day
  • Sea Ice > Ice Temperature
Sensor(s): MODIS
Data Format(s):
  • GeoTIFF
Data Contributor(s): Dorothy Hall, George Riggs

Data Citation

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

Hall, D. K. and G. A. Riggs. 2015. MODIS/Terra Sea Ice Extent Daily L3 Global 1km EASE-Grid Night, Version 6. [indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. [Date Accessed].

Questions? Please contact:

NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA