MOD09GA_005

MODIS/Terra Surface Reflectance Daily L2G Global 1km and 500m SIN Grid V005

Version 005
  • Abstract
    The MODIS Surface Reflectance products provide an estimate of the surface spectral reflectance as it would be measured at ground level in the absence of atmospheric scattering or absorption. Low-level data are corrected for atmospheric gases and aerosols, yielding a level-2 basis for several higher-order gridded level-2 (L2G) and level-3 products. MOD09GA provides Bands 1-7 in a daily gridded L2G product in the Sinusoidal projection, including 500-meter reflectance values and 1-kilometer observation and geolocation statistics. 500-meter Science Data Sets provided for this product include reflectance for Bands 1-7, a quality rating, observation coverage, observation number, and 250-meter scan information. 1-kilometer Science Data Sets provided include number of observations, quality state, sensor angles, solar angles, geolocation flags, and orbit pointers. Version-5 MODIS/Terra Surface Reflectance products are Validated Stage 2, meaning that accuracy has been assessed over a widely distributed set of locations and time periods via several ground-truth and validation efforts. Change Points of Interest Reduced number of data products: MOD09GST, MOD09GHK, MODMGGAD, MODPT1KD, and MODPTHKM encapsulated within MOD09GA Revised methodology for choosing first layer observation Reduced file volume: internal compression V005 Data Set Characteristics: Temporal Coverage: February 24, 2000 - March 30, 2017 Area: ~10 degrees x 10 degrees lat/long File Size: ~85 MB Projection: Sinusoidal Data Format: HDF-EOS 1-km Data Group Dimensions: 1200 x 1200 rows/columns 1-km Data Group Science Data Sets: (SDS HDF Layers) 9 (1) 500-m Data Group Dimensions: 2400 x 2400 rows/columns 500-m Data Group Science Data Sets: (SDS HDF Layers) 12 (2)
  • Purpose
    Science Research
  • Version Description
    Collection Version 5 Processing and Reprocessing

Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

    2G

    Sensor Measurements

    Quality
    Collection Progress

    Complete

    Access Constraints

    None

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • LAND SURFACE
    • SURFACE RADIATIVE PROPERTIES
    • REFLECTANCE

Acquisition Information Fields:

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Platforms
  • Earth Observation Satellites
    Terra
    Instruments
    • MODIS

Temporal Information Fields:

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Spatial Information Fields:

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL Universal Transverse Mercator (UTM) CARTESIAN GEODETIC
    Tiling Identification Systems
    System Name Coordinate 1 Min Coordinate 1 Max Coordinate 2 Min Coordinate 2 Max
    MODIS Tile SIN 0.0 35.0 0.0 17.0
Location Keywords

Data Centers

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  • LP DAAC
    ARCHIVER
    Land Processes Distributed Active Archive Center

    U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
    Sioux Falls, South Dakota 57198

    M-F, 8 a.m. to 4 p.m. Central Time
    • 605-594-6116
    • 605-594-6963
    • Email
    Contact Details

    None

  • NASA/GSFC/SED/ESD/HBSL/BISB/MODAPS
    PROCESSOR
    MODIS Adaptive Processing System, Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

    NASA/GSFC Code 922
    GREENBELT, Maryland 20771

    Contact Details

    Contact for data content concerns

Data Contacts

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Collection Citations Fields:

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