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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    RapidScat Level 2A Surface Flagged Sigma-0 and Attenuations in 25km Swath Grid Version 2.0

    Metadata Updated: February 22, 2025

    This dataset contains the Version 2.0 ISS-RapidScat Level 2A 25km science data record, which provides surface-flagged sigma-0 in 25km Wind Vector Cells processed using the pulse "egg" Sigma-0 data provided by the Level 1B dataset. Due to the circular scan of the SeaWinds instrument the expected number of Sigma-0 cells per WVC is not constant. To minimize the L2A data volume, the Sigma-0 cell data are stored as "lists" for each WVC row, with each list indexed by a "cell_index" array to indicate the cross-track WVC membership of the data. Each cell is then checked for land or ice and flagged accordingly. Attenuation corrections for each Sigma-0 measurement are also provided. Data are provided in single-orbit files in HDF-4 format. Version 2.0 represents a complete historical re-processing of the L2A data record (see the technical note for Version 2.0 under Documentation). RapidScat is a Ku-band dual beam circular rotating scatterometer retaining much of the same hardware and functionality of QuikSCAT, with exception of the antenna sub-system and digital interface to the International Space Station (ISS) Columbus module, which is where RapidScat is mounted. The NASA mission is officially referred to as ISS-RapidScat. Unlike QuikSCAT, ISS-RapidScat is not in sun-synchronous orbit, and flies at roughly half the altitude with a low inclination angle that restricts data coverage to the tropics and mid-latitude regions; the extent of latitudinal coverage stretches from approximately 61 degrees North to 61 degrees South. Furthermore, there is no consistent local time of day retrieval. If you have any questions or concerns, please visit our Forum at https://podaac.jpl.nasa.gov/forum/.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date February 22, 2025
    Metadata Updated Date February 22, 2025

    Metadata Source

    Harvested from nasa test json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 22, 2025
    Metadata Updated Date February 22, 2025
    Publisher NASA/JPL/PODAAC
    Maintainer
    Identifier C2633944811-POCLOUD
    Data First Published 2016-09-28
    Language en-US
    Data Last Modified 2025-02-19
    Category ISS_RapidScat, 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 d1d4742a-9eca-4c84-8318-4989b7a6e34f
    Harvest Source Id a73e0c30-4684-40ef-908e-d22e9e9e5f86
    Harvest Source Title nasa test json
    Homepage URL https://doi.org/10.5067/RSX25-L2A20
    Metadata Type geospatial
    Old Spatial -180.0 -61.0 180.0 61.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 0d48f181a35f230b023f1c245390130574ac54d8424c126ee96a52cc2e7b8a88
    Source Schema Version 1.1
    Spatial
    Temporal 2014-10-03T00:00:00Z/2016-08-19T23:59:59.999Z

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