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MODIS/Terra Leaf Area Index/FPAR 8-Day L4 Global 500m SIN Grid V061

Metadata Updated: May 27, 2024

The MOD15A2H Version 6.1 Moderate Resolution Imaging Spectroradiometer (MODIS) combined Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) product is an 8-day composite dataset with 500 meter (m) pixel size. The algorithm chooses the “best” pixel available from all the acquisitions of the Terra sensor from within the 8-day period.

LAI is defined as the one-sided green leaf area per unit ground area in broadleaf canopies and as one-half the total needle surface area per unit ground area in coniferous canopies. FPAR is defined as the fraction of incident photosynthetically active radiation, 400-700 nanometers (nm), absorbed by the green elements of a vegetation canopy.

Science Datasets (SDSs) in the Level 4 (L4) MOD15A2H product include LAI, FPAR, two quality layers, and standard deviation for LAI and FPAR. Two low resolution browse images, LAI and FPAR, are also available for each MOD15A2H granule.

The LAI product has attained stage 2 (https://landweb.modaps.eosdis.nasa.gov/cgi-bin/QA_WWW/newPage.cgi?fileName=maturity) validation and the FPAR product has attained stage 1 (https://landweb.modaps.eosdis.nasa.gov/cgi-bin/QA_WWW/newPage.cgi?fileName=maturity) validation.

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).

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 May 30, 2023
Metadata Updated Date May 27, 2024

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Browse image for Earthdata Search.

Additional Metadata

Resource Type Dataset
Metadata Created Date May 30, 2023
Metadata Updated Date May 27, 2024
Publisher LP DAAC
Maintainer
Identifier C2218777082-LPCLOUD
Data First Published 2021-03-01
Language en-US
Data Last Modified 2021-03-01
Category Terra, 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 Ranga Myneni, Yuri Knyazikhin, Taejin Park. 2021-03-01. MODIS/Terra Leaf Area Index/FPAR 8-Day L4 Global 500m SIN Grid V061. Sioux Falls, South Dakota, USA. Archived by National Aeronautics and Space Administration, U.S. Government, NASA EOSDIS Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MOD15A2H.061. https://doi.org/10.5067/MODIS/MOD15A2H.061. The DOI landing page provides citations in APA and Chicago styles..
Creator Ranga Myneni, Yuri Knyazikhin, Taejin Park
Graphic Preview Description Browse image for Earthdata Search.
Graphic Preview File https://cmr.earthdata.nasa.gov/browse-scaler/browse_images/granules/G2357560701-LPCLOUD?h=500&w=500
Harvest Object Id d028702c-5aaa-490a-ae37-8dd6c2c3f5b8
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/MODIS/MOD15A2H.061
Metadata Type geospatial
Old Spatial -180.0 -90.0 180.0 90.0
Program Code 026:001
Release Place Sioux Falls, South Dakota, USA
Source Datajson Identifier True
Source Hash f3ca71720693401200fbf8db10dc4aab7cc5c130f47f0c435486702e53fbbb2a
Source Schema Version 1.1
Spatial
Temporal 2000-02-18T00:00:00Z/2024-05-27T00:00:00Z

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