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SMAP Enhanced L3 Radiometer Global and Northern Hemisphere Daily 9 km EASE-Grid Freeze/Thaw State V003

Metadata Updated: December 13, 2023

This enhanced Level-3 (L3) product provides a daily composite of global and Northern Hemisphere 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. This product is derived from SMAP enhanced Level-1C brightness temperatures (SPL1CTB_E). Backus-Gilbert optimal interpolation techniques are used to extract maximum information from SMAP antenna temperatures and convert them to brightness temperatures. The data are then posted to two 9 km Earth-fixed, Equal-Area Scalable Earth Grids, Version 2.0 (EASE-Grid 2.0): a global cylindrical and a Northern Hemisphere azimuthal.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date November 12, 2020
Metadata Updated Date December 13, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

This application allows you to interactively browse global satellite imagery within hours of it being acquired. You can also save it, share it, and download the underlying data.

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date December 13, 2023
Publisher NASA NSIDC DAAC
Maintainer
Identifier C1931660840-NSIDC_ECS
Data First Published 2015-03-31
Language en-US
Data Last Modified 2023-12-02
Category geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation SMAP Enhanced L3 Radiometer Global and Northern Hemisphere Daily 9 km EASE-Grid Freeze/Thaw State V003. Version 003. Archived by National Aeronautics and Space Administration, U.S. Government, NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ZV08T8J395JB.
Graphic Preview Description This application allows you to interactively browse global satellite imagery within hours of it being acquired. You can also save it, share it, and download the underlying data.
Graphic Preview File https://worldview.earthdata.nasa.gov/?p=arctic&l=BlueMarble_NextGeneration,SMAP_L3_Passive_Enhanced_Night_Freeze_Thaw,SMAP_L3_Passive_Enhanced_Day_Freeze_Thaw,Coastlines&t=2015-04-13
Harvest Object Id cf15d006-dd52-4671-88d9-15b36d0b674c
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/ZV08T8J395JB
Metadata Type geospatial
Old Spatial -180.0 -85.044 180.0 85.044
Program Code 026:001
Source Datajson Identifier True
Source Hash 34e5544dd7ad1526f00ad73f4e588bb8fb78435d439240ea21d724cba06d784b
Source Schema Version 1.1
Spatial
Temporal 2015-03-31T00:00:00Z/2023-12-11T00:00:00Z

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