MCD15A2_005

MODIS/Terra+Aqua Leaf Area Index/FPAR 8-Day L4 Global 1km SIN Grid V005

Version 005
  • Abstract
    The level-4 MODIS global Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) product is composited every 8 days at 1-kilometer resolution on a Sinusoidal grid. The MCD15A2 product includes the following Science Data Sets: LAI, FPAR, and a set of quality rating, and standard deviation layers for each variable. The LAI variable defines the number of equivalent layers of leaves relative to a unit of ground area, whereas FPAR measures the proportion of available radiation in the photosynthetically-active wavelengths that are absorbed by green vegetation. Both variables are used as satellite-derived parameters to calculate surface photosynthesis, evapotranspiration, and net primary production, which inputs are used to calculate terrestrial energy, carbon, water-cycle processes, and vegetation biogeochemistry. Change Points of Interest Algorithm refinements were targeted to improve quality of LAI/FPAR retrievals, and consistency with field measurements over all biomes, but with major focus on woody vegetation. Old 6-biome LAI/FPAR map was replaced with a new 8-biome map (broadleaf and needleleaf forest classes were split into deciduous and evergreen subclasses) LAI/FPAR algorithm LUTs refined for all 8 biomes Reduced file volume through internal compression Additional V005 LAI/FPAR changes: http://landweb.nascom.nasa.gov/QA_WWW/forPage/C005_Changes_LAI_FPAR.pdf V005 Data Set Characteristics: Temporal Coverage: July 4, 2002 – March 29, 2017 Area: ~10 degrees x 10 degrees lat/long Image Dimensions: 1200 x 1200 rows/columns Spatial Resolution: 1 km File Size: 2 MB Resolution: ~1000 meters Projection: Sinusoidal Data Format: HDF-EOS Science Data Sets (SDS HDF Layers): 6
  • 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

    4

    GRID

    Quality
    Collection Progress

    Complete

    Access Constraints

    None

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • LEAF CHARACTERISTICS
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • PHOTOSYNTHETICALLY ACTIVE RADIATION

Acquisition Information Fields:

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Platforms
  • Earth Observation Satellites
    Terra
    Instruments
    • MODIS
  • 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 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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