Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS, Version 4
Data set id:
NSIDC-0079
DOI: 10.5067/X5LG68MH013O
This is the most recent version of these data.
Version Summary
Version Summary
The NSIDC DAAC repackaged the data fields provided by GSFC in CF-compliant NetCDF files.
Overview
This sea ice concentration data set was derived using measurements from the Scanning Multichannel Microwave Radiometer (SMMR) on the Nimbus-7 satellite and from the Special Sensor Microwave/Imager (SSM/I) sensors on the Defense Meteorological Satellite Program's (DMSP) -F8, -F11, and -F13 satellites. Measurements from the Special Sensor Microwave Imager/Sounder (SSMIS) aboard DMSP-F17 are also included. The data set has been generated using the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) Bootstrap Algorithm with daily varying tie-points. Daily (every other day prior to July 1987) and monthly data are available for both the north and south polar regions. Data are gridded on the SSM/I polar stereographic grid (25 x 25 km) and provided in two-byte integer format. Data coverage began on 01 November 1978 and ended 31 December 2025.
Parameter(s):
SEA ICE CONCENTRATION
Platform(s):
DMSP 5D-2/F11
DMSP 5D-2/F13
DMSP 5D-2/F8
DMSP 5D-3/F17
Nimbus-7
Sensor(s):
SMMR
SSM/I
SSMIS
Data Format(s):
netCDF-4
Temporal Coverage:
- 1 November 1978 to 31 December 2025
Temporal Resolution:
- Varies
Spatial Resolution:
- 25 km
- 25 km
Spatial Reference System(s):
- NSIDC Sea Ice Polar Stereographic NorthEPSG:3411
- NSIDC Sea Ice Polar Stereographic SouthEPSG:3412
Spatial Coverage:
- Northern latitude90Southern latitude30Eastern longitude180Western longitude-180
- Northern latitude-39Southern latitude-90Eastern longitude180Western longitude-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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