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    • Near Real-time SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures V105

    Metadata Updated: December 9, 2024

    This Near Real-Time (NRT) data set corresponds to the standard SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures (SPL1BTB) product. The data provide calibrated estimates of time-ordered geolocated brightness temperature data measured by the Soil Moisture Active Passive (SMAP) passive microwave radiometer, the SMAP L-band radiometer. These Near Real-Time data are available within three hours of satellite observation. The data are created using the latest available ancillary data and spacecraft and antenna attitude data to reduce latency. The SMAP satellite orbits Earth every two to three days, providing half-orbit, ascending and descending, coverage from 86.4°S to 86.4°N in swaths 1000 km across. Data are stored for approximately two to three weeks. Thus, at any given time, users have access to at least fourteen consecutive days of Near Real-Time data through the NSIDC DAAC. Users deciding between the NRT and standard SMAP products should consider the immediacy of their needs versus the quality of the data required. Near real-time data are provided for operational needs whereas standard products meet the quality needs of scientific research. If latency is not a primary concern, users are encouraged to use the standard science product, SPL1BTB (https://doi.org/10.5067/ZHHBN1KQLI20).

    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 May 30, 2023
    Metadata Updated Date December 9, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    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 May 30, 2023
    Metadata Updated Date December 9, 2024
    Publisher NASA NSIDC DAAC
    Maintainer
    Identifier C2257958430-NSIDC_ECS
    Data First Published 2024-11-21
    Language en-US
    Data Last Modified 2024-12-08
    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 Near Real-time SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures V105. Version 105. 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/UH70WUPQKCFR.
    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/?v=-188,-85,183,86&l=SMAP_L1_Passive_Faraday_Rotation_Fore,SMAP_L1_Passive_Faraday_Rotation_Aft,Coastlines_15m,MODIS_Terra_CorrectedReflectance_TrueColor
    Harvest Object Id 1abc54da-edd3-4247-848d-3e165c894b62
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/UH70WUPQKCFR
    Metadata Type geospatial
    Old Spatial -180.0 -86.4 180.0 86.4
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash ecd795154a54cfd10493964e825a47e0b473433fabde34b2de385a4266f91620
    Source Schema Version 1.1
    Spatial
    Temporal 2024-11-21T00:00:00Z/2024-12-09T00:00:00Z

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