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    • MODIS/Aqua Net Evapotranspiration 8-Day L4 Global 500m SIN Grid V061

    Metadata Updated: December 6, 2023

    The MYD16A2 Version 6.1 Evapotranspiration/Latent Heat Flux product is an 8-day composite dataset produced at 500 meter (m) pixel resolution. The improved algorithm is based on the logic of the Penman-Monteith equation, which includes inputs of daily meteorological reanalysis data along with Moderate Resolution Imaging Spectroradiometer (MODIS) remotely sensed data products such as vegetation property dynamics, albedo, and land cover.

    Provided in the MYD16A2 product are layers for composited Evapotranspiration (ET), Latent Heat Flux (LE), Potential ET (PET) and Potential LE (PLE) along with a quality control layer. Two low resolution browse images, ET and LE, are also available for each MYD16A2 granule.

    The pixel values for the two Evapotranspiration layers (ET and PET) are the sum of all eight days within the composite period, and the pixel values for the two Latent Heat layers (LE and PLE) are the average of all eight days within the composite period. Note that the last acquisition period of each year is a 5 or 6-day composite period depending on the year.

    Validation at stage 1 (https://landweb.modaps.eosdis.nasa.gov/cgi-bin/QA_WWW/newPage.cgi?fileName=maturity) has been achieved for MODIS Evapotranspiration products.

    Improvements/Changes from Previous Versions

    • The Version 6.1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and corrections to the Terra MODIS forward look-up table (LUT) update for the period 2012 - 2017.
    • A polarization correction has been applied to the L1B Reflective Solar Bands (RSB).
    • The product uses Climatology LAI/FPAR as back up to the operational LAI/FPAR.

    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 April 27, 2023
    Metadata Updated Date December 6, 2023

    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 April 27, 2023
    Metadata Updated Date December 6, 2023
    Publisher LP DAAC
    Maintainer
    Identifier C2565794064-LPCLOUD
    Data First Published 2016-01-20
    Language en-US
    Data Last Modified 2017-04-21
    Category Aqua, 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 Steve Running, Qiaozhen Mu, Maosheng Zhao. 2021-03-15. MODIS/Aqua Net Evapotranspiration 8-Day L4 Global 500m SIN Grid V061. Archived by National Aeronautics and Space Administration, U.S. Government, NASA EOSDIS Land Processes DAAC. https://doi.org/10.5067/MODIS/MYD16A2.061. https://doi.org/10.5067/MODIS/MYD16A2.061. The DOI landing page provides citations in APA and Chicago styles..
    Creator Steve Running, Qiaozhen Mu, Maosheng Zhao
    Graphic Preview Description Browse image for Earthdata Search
    Graphic Preview File https://cmr.earthdata.nasa.gov/browse-scaler/browse_images/granules/G2658628853-LPCLOUD?h=85&w=85
    Harvest Object Id 5dd5523b-7dbb-45cd-92da-06be4d6bb76e
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/MODIS/MYD16A2.061
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 54c672fe9b6c2fab611a393a9a2fe59f67c930ac59e232f82de1998d19280776
    Source Schema Version 1.1
    Spatial
    Temporal 2002-07-04T00:00:00Z/2023-04-24T00:00:00Z

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