SMAP L3 Radiometer Global and Northern Hemisphere Daily 36 km EASE-Grid Freeze/Thaw State V004

Published by NASA NSIDC DAAC | National Aeronautics and Space Administration | Metadata Last Checked: July 18, 2025 | Last Modified: 2025-07-17

This Level-3 (L3) product provides a daily composite of landscape freeze/thaw conditions retrieved by the Soil Moisture Active Passive (SMAP) radiometer from 6:00 a.m. descending and 6:00 p.m. ascending half-orbit passes. SMAP L-band brightness temperatures are used to derive freeze/thaw state and transition data, which are then resampled to both an Earth-fixed, Northern Hemisphere azimuthal 36 km Equal-Area Scalable Earth Grid (EASE-Grid 2.0), and to an Earth-fixed global 36 km EASE-Grid 2.0.

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Complete Metadata

bureauCode	[ "026:00" ]
identifier	C2776463838-NSIDC_ECS
issued	2015-03-31
landingPage	https://doi.org/10.5067/LQQ5I3QVGFTU
language	[ "en-US" ]
programCode	[ "026:001" ]
spatial	-180.0 45.0 180.0 85.044
temporal	2015-03-31T00:00:00Z/2025-03-24T00:00:00Z
theme	[ "geospatial" ]