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Description

The Near-real-time Ice and Snow Extent (NISE) Advanced Microwave Scanning Radiometer 2 (AMSR2) data set provides daily, global maps of sea ice concentrations and snow extent. The data provides a best estimate of current ice and snow conditions based on information and algorithms available at the time the data are acquired. Near-real-time products are not intended for operational use in assessing sea ice conditions for navigation.

Version Description

Initial release

Product Summary

Platforms
GCOM-W1
Instruments
AMSR2
Projects
PM-LT
Spatial Extent

N: 90 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 ,
SOUTHERN HEMISPHERE
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2024-01-01 to Present
Temporal Resolution
1 Day
Concept ID
C3628320271-NSIDC_CPRD
Data State
ACTIVE
Number of Files/Granules
985
Processing Level
3
Published
Science Keywords
Sea Ice Concentration ,
Snow Cover

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

Stewart, J. S., Meier, W. N., Wilcox, H., & Scott, D. J. (2025). Near-Real-Time AMSR2 EASE-Grid Daily Global Ice Concentration and Snow Extent, Version 1 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/H1NBW96MSEGY Date Accessed: 2026-09-12

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