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Near-Real-Time SSM/I EASE-Grid Daily Global Ice Concentration and Snow Extent V002

Published by NASA NSIDC DAAC | National Aeronautics and Space Administration | Metadata Last Checked: June 28, 2025 | Last Modified: 2025-03-31
The Near-real-time Ice and Snow Extent (NISE) data set provides daily, global maps of sea ice concentrations and snow extent. These data are not suitable for time series, anomalies, or trends analyses. They are meant to provide 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. This NISE Version 2 product contains SSMIS-derived sea ice concentrations and snow extents derived from the Special Sensor Microwave Imager/Sounder (SSMIS) aboard the Defense Meteorological Satellite Program (DMSP) F13 satellite. For DMSP-F16, SSMIS-derived data, see <a href="https://doi.org/10.5067/JAQDJKPX0S60"> NISE Version 3</a>. For DMSP-F17, SSMIS-derived data, see <a href="https://doi.org/10.5067/VF7QO90IHZ99"> NISE Version 4</a>. For DMSP-F18, SSMIS-derived data, see <a href="https://doi.org/10.5067/3KB2JPLFPK3R"> NISE Version 5</a>.

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