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Description

This data set provides a Near-Real-Time (NRT) map of sea ice concentrations for both the Northern and Southern Hemispheres.

As of 18 June 2026, this data set is retired and no longer available for download. Forward processing for this product ceased in January 2026. We recommend using the research quality AMSR2 Daily Polar Gridded Sea Ice Concentrations (https://doi.org/10.5067/W13AO54SS7CW) or Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data (https://doi.org/10.5067/MPYG15WAA4WX) data sets as an alternative.

Version Description

Version update reflects the conversion of the data set from binary to netCDF.

Product Summary

Platforms
DMSP 5D-3/F16 ,
DMSP 5D-3/F17 ,
DMSP 5D-3/F18
Instruments
SSMIS
Spatial Extent

N: 90 S: 30.98 E: 180 W: -180

,

N: -39.23 S: -90 E: 180 W: -180

Spatial Resolution
25 Kilometers x 25 Kilometers
Spatial Reference System(s)
Multiple EPSG codes (see User Guide)
Location
ANTARCTICA ,
ARCTIC ,
NORTHERN HEMISPHERE ,
POLAR ,
SOUTHERN HEMISPHERE
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2024-01-01 to 2026-01-14
Temporal Resolution
1 Day
Concept ID
C3177838875-NSIDC_CPRD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
3
Published
Science Keywords
Sea Ice Concentration

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Meier, W., Stewart, J., Wilcox, H., Hardman, M., & Scott, D. (2021). Near-Real-Time DMSP SSMIS Daily Polar Gridded Sea Ice Concentrations, Version 2 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/YTTHO2FJQ97K Date Accessed: 2026-06-22

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