Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH), Version 1
Data set id:
This is the most recent version of these data.
Initial release of the 4 km MASIE NH product.
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.
ICE EDGES ICE EXTENT ICE GROWTH/MELT
ALOS, Aqua, DMSP, ENVISAT, GOES, MSG, RADARSAT-2
ASAR, MODIS, PALSAR, SAR, SEVIRI, SSM/I, VAS
NetCDF, PNG, GeoTIFF, ASCII, Shapefile, KML, Excel
1 January 2006 to present
1 day, 1 day
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
Data Access & Tools
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 methods and data to estimate this parameter and their intended uses are also different.
For example, the MASIE-NH coastline has slight differences with the Arctic coastline available from the Toolik-Arctic Geobotanical Atlas.
NOAA@NSIDC data recently transitioned to HTTPS. The directory structure has NOT changed, but the beginning of the URL has changed from: ftp://sidads.colorado.edu/pub/DATASETS/ to: