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    • UARS High Resolution Doppler Imager (HRDI) Level 3AL V011 (UARHR3AL) at GES DISC

    Metadata Updated: December 7, 2023

    The High Resolution Doppler Imager (HRDI) Level 3AL data product consists of daily, 4 degree increment latitude-ordered vertical profiles of meridional and zonal wind components, temperature and volume emmission rate of O2. The instrument measured Doppler shifts of spectral lines in the visible and near-IR between 400 and 800 nm. HRDI was flown on NASA's Upper Atmosphere Research Satellite (UARS) and designed to measure winds and other parameters in the mesosphere and lower thermosphere by primarily observing the Doppler shift of emitted light, and in the stratosphere by observing the Doppler shift of atmospheric absorption features. Measurements were made in the mesosphere between 50 and 115 km, and in the stratosphere between 10 and 40 km at about 2.5 km resolution. Data were collected between latitude 40S and 76N and 76S and 40N, alternating each satellite yaw cycle of about 36 days. The HRDI Level 3AL data were processed with the version 11 algorithm.

    The HRDI level 3AL product consists of 8 granules per day. A data granule is one HRDI species or subtype per day.

    Data are on the UARS standard altitude levels (in km) given by:

    z(i) = 5i for i<=12 z(i) = 60 + (i-12)3 for 13 <= i <= 32 z(i) = 120 + (i-32)*5 for 33 <= i <= 88

    as well as the UARS standard pressure levels (in mbars) given by:

    P(i) = 1000 * 10**(-i/6) for i = 0, 1, 2, ...

    The data files are available in a binary record oriented format.

    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 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Graphic Preview

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 7, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C1273348585-GES_DISC
    Data First Published 1996-04-05
    Language en-US
    Data Last Modified 1996-04-05
    Category UARS, 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 Hays, Paul B., Abreu, Vincent J., et al.. 1996-12-02. UARHR3AL. Version 011. UARS High Resolution Doppler Imager (HRDI) Level 3AL V011. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://disc.gsfc.nasa.gov/datacollection/UARHR3AL_011.html. Digital Science Data.
    Creator Hays, Paul B., Abreu, Vincent J., et al.
    Data Presentation Form Digital Science Data
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/UARHR3AL_011.png
    Harvest Object Id 4540ff64-71c0-4ca1-a32d-e876380e54fe
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://cmr.earthdata.nasa.gov:443/search/concepts/C1273348585-GES_DISC.html
    Metadata Type geospatial
    Old Spatial -180.0 -76.0 180.0 76.0
    Program Code 026:001
    Release Place Greenbelt, MD, USA
    Series Name UARHR3AL
    Source Datajson Identifier True
    Source Hash 2b937772acadf9f48d3f250b059c75908de6246482f29d4cc70c544d58129273
    Source Schema Version 1.1
    Spatial
    Temporal 1991-11-06T00:00:00Z/1999-01-30T23:59:59.999Z

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