MYD13A1_005

MODIS/Aqua Vegetation Indices 16-Day L3 Global 500m SIN Grid V005

Version 005
  • Abstract
    Global MODIS vegetation indices are designed to provide consistent spatial and temporal comparisons of vegetation conditions. Blue, red, and near-infrared reflectances, centered at 469-nanometers, 645-nanometers, and 858-nanometers, respectively, are used to determine the MODIS daily vegetation indices. The MODIS Normalized Difference Vegetation Index (NDVI) complements NOAA's Advanced Very High Resolution Radiometer (AVHRR) NDVI products and provides continuity for time series historical applications. MODIS also includes a new Enhanced Vegetation Index (EVI) that minimizes canopy background variations and maintains sensitivity over dense vegetation conditions. The EVI also uses the blue band to remove residual atmosphere contamination caused by smoke and sub-pixel thin cirrus clouds. The MODIS NDVI and EVI products are computed from atmospherically corrected bi-directional surface reflectances that have been masked for water, clouds, heavy aerosols, and cloud shadows. Global MYD13A1 data are provided every 16 days at 500-meter spatial resolution as a gridded level-3 product in the Sinusoidal projection. VI production is phased between Terra and Aqua acquisitions, with Terra beginning on Day 001 and Aqua beginning on Day 008. Vegetation indices are used for global monitoring of vegetation conditions and are used in products displaying land cover and land cover changes. These data may be used as input for modeling global biogeochemical and hydrologic processes and global and regional climate. These data also may be used for characterizing land surface biophysical properties and processes, including primary production and land cover conversion. V005 Data Set Characteristics: Area: ~10 degrees x 10 degrees Image Dimensions: 2400 x 2400 rows/columns File Size: 30 MB Resolution: 500 meters Projection: Sinusoidal Data Format: HDF-EOS Science Data Sets (SDSs): 12
  • 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

    3

    Sensor Measurements

    Quality
    Collection Progress

    Complete

    Access Constraints

    None

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • VEGETATION INDEX

Acquisition Information Fields:

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Platforms
  • Earth Observation Satellites
    Aqua
    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

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Collection Citations Fields:

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