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Worldwide Historical Estimates of Leaf Area Index, 1932-2000Approximately 1000 published estimates of leaf area index (LAI) from nearly 400 unique field sites, covering the period 1932-2000, have been compiled into a single data set. LA1 is a key parameter for global and regional models of biosphere/atmosphere exchange of carbon dioxide, water vapor, and other materials. It also plays an integral role in determining the energy balance of the land surface. This data set provides a benchmark of typical values and ranges of LA1 for a variety of biomes and land cover types, in support of model development and validation of satellite-derived remote sensing estimates of LA1 and other vegetation parameters. The LA1 data are linked to a bibliography of over 300 originalsource references.This report documents the development of this data set, its contents, and its availability on the Internet from the Oak Ridge National Laboratory Distributed Active Archive Center for Biogeochemical Dynamics. Caution is advised in using these data, which were collected using a wide range of methodologies and assumptions that may not allow comparisons among sites.
Document ID
20040045210
Document Type
Other
Authors
Scurlock, J. M. O. (Oak Ridge National Lab. TN, United States)
Asner, G. P. (Carnegie Institution of Washington Stanford, CA, United States)
Gower, S. T. (Wisconsin Univ. Madison, WI, United States)
Date Acquired
August 21, 2013
Publication Date
December 1, 2001
Subject Category
Earth Resources and Remote Sensing
Report/Patent Number
ORNL/TM-2001-268
Funding Number(s)
CONTRACT_GRANT: DE-AC05-00OR-22725
CONTRACT_GRANT: 2013-P289-A1
CONTRACT_GRANT: NASA Order S-87079-F
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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