Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures V006

    Metadata Updated: August 23, 2025

    This Level-1B (L1B) product provides calibrated estimates of time-ordered geolocated brightness temperatures measured by the Soil Moisture Active Passive (SMAP) passive microwave radiometer. SMAP L-band brightness temperatures are referenced to the Earth's surface with undesired and erroneous radiometric sources removed.

    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 December 13, 2023
    Metadata Updated Date August 23, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 13, 2023
    Metadata Updated Date August 23, 2025
    Publisher NASA NSIDC DAAC
    Maintainer
    Identifier C2776463679-NSIDC_ECS
    Data First Published 2015-03-31
    Language en-US
    Data Last Modified 2025-07-17
    Category geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id a5524294-5b83-4b2d-a582-4ea1398e7494
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/GWYQTF307Y9Y
    Metadata Type geospatial
    Old Spatial -180.0 -86.4 180.0 86.4
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 124b5b8331a1d5ae22e98929d3a742b687660b492b6e00118250e84d24d8076b
    Source Schema Version 1.1
    Spatial
    Temporal 2015-03-31T00:00:00Z/2025-03-24T00:00:00Z

    Didn't find what you're looking for? Suggest a dataset here.