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MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status V005

Published by NASA NSIDC DAAC | National Aeronautics and Space Administration | Catalog Last Checked: July 28, 2026 at 11:33 PM | Dataset Last Updated: July 17, 2025
This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, contains a global record of the daily freeze/thaw status of the landscape. The record is derived from radiometric brightness temperatures acquired between 1979 and 2021 by four satellite-based, passive microwave sensors: the Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave/Imager (SSM/I), the Special Sensor Microwave Imager/Sounder (SSMIS), and the Advanced Microwave Scanning Radiometer 2 (AMSR2).

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