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    • EMIT L3 Aggregated Mineral Spectral Abundance and Uncertainty 0.5 Deg V001

    Metadata Updated: September 16, 2024

    The Earth Surface Mineral Dust Source Investigation (EMIT) instrument measures surface mineralogy, targeting the Earth’s arid dust source regions. EMIT is installed on the International Space Station (ISS) and uses imaging spectroscopy to take measurements of the sunlit regions of interest between 52° N latitude and 52° S latitude. An interactive map showing the regions being investigated, current and forecasted data coverage, and additional data resources can be found on the VSWIR Imaging Spectroscopy Interface for Open Science (VISIONS) EMIT Open Data Portal. The EMIT Level 3 Aggregated Mineral Spectral Abundance and Uncertainty (EMITL3ASA) Version 1 data product provides an aggregated mineral spectral abundance of the 10 minerals that are the focus of the EMIT mission. These minerals, referred to as the EMIT-10 minerals, are calcite, chlorite, dolomite, goethite, gypsum, hematite, illite+muscovite, kaolinite, montmorillonite, and vermiculite. The EMITL3ASA granule consists of one network Common Data Format 4 (netCDF-4) file at a spatial resolution of 0.5 degrees. The data in EMITL3ASA relies heavily on the EMIT L2B Estimated Mineral Identification and Band Depth and Uncertainty (EMITL2BMIN) data. Using the EMITL2BMIN data, aggregated spectral abundance (ASA) is calculated for each of the EMIT-10 minerals as the simple average of relevant 60 m pixels within each 0.5 degree grid cell in the EMITL3ASA product, after controlling for the estimated fractional cover of bare soil within the pixel. The EMITL3ASA data product contains 20 Science Dataset (SDS) layers. There are two layers for each of the EMIT-10 minerals: mineral spectral abundance and mineral spectral abundance uncertainty. The latitude and longitude layers contain the coordinates for the upper left corner of each pixel.

    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 October 4, 2023
    Metadata Updated Date September 16, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Browse image for Earthdata Search.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date October 4, 2023
    Metadata Updated Date September 16, 2024
    Publisher LP DAAC
    Maintainer
    Identifier C2408752948-LPCLOUD
    Data First Published 2023-09-28
    Language en-US
    Data Last Modified 2023-09-28
    Category EMIT, 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 Robert Green. 2023-09-28. EMITL3ASA.001. EMIT L3 Aggregated Mineral Spectral Abundance and Uncertainty 0.5 Deg V001. Archived by National Aeronautics and Space Administration, U.S. Government, NASA EOSDIS Land Processes Distributed Active Archive Center. https://doi.org/10.5067/EMIT/EMITL3ASA.001. https://doi.org/10.5067/EMIT/EMITL3ASA.001. The DOI landing page provides citations in APA and Chicago styles..
    Creator Robert Green
    Graphic Preview Description Browse image for Earthdata Search.
    Graphic Preview File https://data.lpdaac.earthdatacloud.nasa.gov/lp-prod-public/EMITL3ASA.001/EMIT_L3_ASA_001/EMIT_L3_ASA_001.png
    Harvest Object Id 97120b22-187a-4b75-bb16-56812ee53df2
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/EMIT/EMITL3ASA.001
    Metadata Type geospatial
    Old Spatial -165.0 -54.5 179.5 55.0
    Program Code 026:001
    Series Name EMITL3ASA.001
    Source Datajson Identifier True
    Source Hash 74b860c612f8776269bc75ffb84e6e2ae44190af08f1d529757ab3ab5ad55f96
    Source Schema Version 1.1
    Spatial
    Temporal 2022-08-10T00:00:00Z/2023-07-30T23:59:59Z

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