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Global Products Of Vegetation Leaf Area And Fraction Absorbed Par From Year One Of Modis Data (2001)
| Citations: | 187 - 27 self |
BibTeX
@MISC{Myneni01globalproducts,
author = {R. B. Myneni and S. Hoffman and Y. Knyazikhin and J. L. Privette and J. Glassy and Y. Tian and Y. Wang and X. Song and Y. Zhang and G. R. Smith and A. Lotsch and M. Friedl and J. T. Morisette and P. Votava and R. R. Nemani and S. W. Running and Ranga B. Myneni and Glcc Global and Land Cover Characterization},
title = {Global Products Of Vegetation Leaf Area And Fraction Absorbed Par From Year One Of Modis Data},
year = {2001}
}
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Abstract
. An algorithm based on the physics of radiative transfer in vegetation canopies for the retrieval of vegetation green leaf area index (LAI) and fraction of absorbed photosynthetically active radiation (FPAR) from surface reflectances was developed and implemented for operational processing prior to the launch of the moderate resolution imaging spectroradiometer (MODIS) aboard the TERRA platform in December of 1999. The performance of the algorithm has been extensively tested in prototyping activities prior to operational production. Considerable attention was paid to characterizing the quality of the product and this information is available to the users as quality assessment (QA) accompanying the product. The MODIS LAI/FPAR product has been operationally produced from day one of science data processing from MODIS and is available free of charge to the users from the EROS (Earth Resources Observation System) Data Center Distributed Active Archive Center. Current and planned validation activities are aimed at evaluating the product at several field sites representative of the six structural biomes. Example results illustrating the physics and performance of the algorithm are presented together with initial QA and validation results. Potential users of the product are advised of the provisional nature of the product in view of changes to calibration, geolocation, cloud screening, atmospheric correction and ongoing validation activities. Keywords: LAI, FPAR, MODIS, TERRA Myneni et al., Global Products..., p. 4 of 33
Keyphrases
global product modis data fraction absorbed par vegetation leaf area modis lai fpar product vegetation canopy atmospheric correction science data processing moderate resolution operational production active radiation considerable attention operational processing surface reflectance terra platform vegetation green leaf area index terra myneni validation activity structural biome validation result provisional nature quality assessment ongoing validation activity cloud screening earth resource observation system several field site potential user radiative transfer initial qa example result
