Global products of vegetation leaf area and fraction absorbed PAR from year one of MODIS data

R. B. Myneni; S. Hoffman; Y. Knyazikhin; J. L. Privette; J. Glassy; Y. Tian; Y. Wang; X. Song; Y. Zhang; G. R. Smith; A. Lotsch; M. Friedl; J. T. Morisette; P. Votava; R. R. Nemani; S. W. Running

doi:10.1016/S0034-4257(02)00074-3

Global products of vegetation leaf area and fraction absorbed PAR from year one of MODIS data

R. B. Myneni, S. Hoffman, Y. Knyazikhin, J. L. Privette, J. Glassy, Y. Tian, Y. Wang, X. Song, Y. Zhang, G. R. Smith, A. Lotsch, M. Friedl, J. T. Morisette, P. Votava, R. R. Nemani, S. W. Running

W. A. Franke College of Forestry and Conservation

Research output: Contribution to journal › Article › peer-review

1618 Scopus citations

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 Earth Resources Observation System (EROS) 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.

Original language	English
Pages (from-to)	214-231
Number of pages	18
Journal	Remote Sensing of Environment
Volume	83
Issue number	1-2
DOIs	https://doi.org/10.1016/S0034-4257(02)00074-3
State	Published - Nov 2002

Funding

This research was funded by the NASA MODIS program. Several individuals not listed in the byline have contributed significantly to the MODIS LAI/FPAR research and project activities. In particular, we gratefully acknowledge the contributions of Nazmi El-Saleous, Chris Justice, David Roy and Robert Wolfe.

Funders	Funder number
National Aeronautics and Space Administration

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Myneni, R. B., Hoffman, S., Knyazikhin, Y., Privette, J. L., Glassy, J., Tian, Y., Wang, Y., Song, X., Zhang, Y., Smith, G. R., Lotsch, A., Friedl, M., Morisette, J. T., Votava, P., Nemani, R. R., & Running, S. W. (2002). Global products of vegetation leaf area and fraction absorbed PAR from year one of MODIS data. Remote Sensing of Environment, 83(1-2), 214-231. https://doi.org/10.1016/S0034-4257(02)00074-3

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title = "Global products of vegetation leaf area and fraction absorbed PAR from year one of MODIS data",

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 Earth Resources Observation System (EROS) 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.",

author = "Myneni, {R. B.} and S. Hoffman and Y. Knyazikhin and Privette, {J. L.} and J. Glassy and Y. Tian and Y. Wang and X. Song and Y. Zhang and Smith, {G. R.} and A. Lotsch and M. Friedl and Morisette, {J. T.} and P. Votava and Nemani, {R. R.} and Running, {S. W.}",

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Myneni, RB, Hoffman, S, Knyazikhin, Y, Privette, JL, Glassy, J, Tian, Y, Wang, Y, Song, X, Zhang, Y, Smith, GR, Lotsch, A, Friedl, M, Morisette, JT, Votava, P, Nemani, RR & Running, SW 2002, 'Global products of vegetation leaf area and fraction absorbed PAR from year one of MODIS data', Remote Sensing of Environment, vol. 83, no. 1-2, pp. 214-231. https://doi.org/10.1016/S0034-4257(02)00074-3

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AU - Tian, Y.

AU - Wang, Y.

AU - Song, X.

AU - Zhang, Y.

AU - Smith, G. R.

AU - Lotsch, A.

AU - Friedl, M.

AU - Morisette, J. T.

AU - Votava, P.

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AU - Running, S. W.

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Global products of vegetation leaf area and fraction absorbed PAR from year one of MODIS data

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