Data Set ID:
G02186

Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH), Version 1

The Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH) products provide measurements of daily sea ice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell sizes. MASIE products include an ASCII text file of sea ice extent values in square km for each Arctic region, time series plots, and image files that visually show where the sea ice is.

Note: MASIE may look like several other sea ice products distributed at NSIDC and elsewhere, but its source data and intended uses are different. If intended and appropriate uses of the data are not clear after reading the documentation, please contact NSIDC User Services.

This is the most recent version of these data.

Version Summary:

Initial release of the 4 km MASIE NH product.

Parameter(s):
  • Sea Ice > Ice Edges > ICE EDGES
  • SEA ICE > ICE EDGES
  • Sea Ice > Ice Extent > ICE EXTENT
  • SEA ICE > ICE EXTENT
  • Sea Ice > Ice Growth/Melt > ICE GROWTH/MELT
  • SNOW/ICE > ICE GROWTH/MELT
Data Format(s):
  • PNG
  • ESRI Shapefile
  • Microsoft Excel
  • Keyhole Markup Language (.kml)
  • GeoTIFF
  • ASCII Text
Spatial Coverage:
N: 90, 
S: 0, 
E: 180, 
W: -180
Platform(s):ALOS, AQUA, DMSP, ENVISAT, GOES, MSG, RADARSAT-2
Spatial Resolution:
  • 4 km x 4 km
  • 1 km x 1 km
Sensor(s):AMSR-E, AMSU-A, ASAR, GOES I-M IMAGER, MODIS, PALSAR, SAR, SEVIRI, SSM/I
Temporal Coverage:
  • 1 January 2006
(updated daily)
Version(s):V1
Temporal Resolution1 dayMetadata XML:View Metadata Record
Data Contributor(s):Florence Fetterer, Pablo Clemente-Colón, Matthew Savoie, Sean Helfrich

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 and National Snow and Ice Data Center. Compiled by F. Fetterer, M. Savoie, S. Helfrich, and P. Clemente-Colón. 2010, updated daily. Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH), Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: https://doi.org/10.7265/N5GT5K3K. [Date Accessed].

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No technical references available for this data set.

FAQ

Why do coastlines from various sources not match each other exactly?
For example, the MASIE-NH coastline has slight differences with the Arctic coastline available from the Toolik-Arctic Geobotanical Atlas (http://www.arcticatlas.org/maps/themes/cp/cpcoast). The differences are most apparent on the... read more
Are the same regions used in the Sea Ice Index and MASIE-NH?
The regions differ slightly between the Sea Ice Index and the Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH). The two data sets are a source for sea ice extent, but they use different... read more