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    • UARS Particle Environment Monitor (PEM) Level 3AT V004 (UARPE3AT) at GES DISC

    Metadata Updated: December 7, 2023

    The Particle Environment Monitor (PEM) Level 3AT data product consists of daily, 65.536 second interval time-ordered, vertical profiles of electron, proton and x-ray energy deposition rates. PEM was made up of four instruments: the Atmospheric X-Ray Imaging Spectrometer (AXIS), the High Energy Particle Spectrometer (HEPS), the Medium Energy Spectrometer (MEPS), and the Vector Magnetometer (VMAG). PEM was flown on NASA's Upper Atmosphere Research Satellite (UARS) to measure the type, amount, energy, and distribution of charged particles injected into the Earth's thermosphere, mesosphere, and stratosphere. The PEM electron and proton data are processed with the version 4 algorithm, while the x-ray data remained version 3.

    The PEM level 3AT data consist of 18 granules per day. A data granule is defined as one PEM subtype per day. The x-ray pixel subtypes are grouped together in a single tar file for each day, the electron and proton are available as individual files per day.

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

    z(i) = 5 * i, i <= 12 z(i) = 60 + (i - 12) * 3, 13 <= i <= 32 z(i) = 120 + (i - 32) * 10, 33 <= i <= 50

    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 C1273348591-GES_DISC
    Data First Published 1997-06-03
    Language en-US
    Data Last Modified 1997-06-03
    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 Winningham, David J., et al.. 1998-04-26. UARPE3AT. Version 004. UARS Particle Environment Monitor (PEM) Level 3AT V004. 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/UARPE3AT_004.html. Digital Science Data.
    Creator Winningham, David J., et al.
    Data Presentation Form Digital Science Data
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/UARPE3AT_004.png
    Harvest Object Id 5b39b0ab-c2ad-4662-880b-a7f9b5fd58eb
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://cmr.earthdata.nasa.gov:443/search/concepts/C1273348591-GES_DISC.html
    Metadata Type geospatial
    Old Spatial -180.0 -80.0 180.0 80.0
    Program Code 026:001
    Release Place Greenbelt, MD, USA
    Series Name UARPE3AT
    Source Datajson Identifier True
    Source Hash d30603baacbe79c0bb6ea262b9f27c3677b7dc7cb4b93710edd820ec3150e597
    Source Schema Version 1.1
    Spatial
    Temporal 1991-10-01T00:00:00Z/1999-12-31T23:59:59.999Z

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