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The Importance of Measurement Errors for Deriving Accurate Reference Leaf Area Index Maps for Validation of Moderate-Resolution Satellite LAI ProductsThe validation of moderate-resolution satellite leaf area index (LAI) products such as those operationally generated from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor data requires reference LAI maps developed from field LAI measurements and fine-resolution satellite data. Errors in field measurements and satellite data determine the accuracy of the reference LAI maps. This paper describes a method by which reference maps of known accuracy can be generated with knowledge of errors in fine-resolution satellite data. The method is demonstrated with data from an international field campaign in a boreal coniferous forest in northern Sweden, and Enhanced Thematic Mapper Plus images. The reference LAI map thus generated is used to assess modifications to the MODIS LAI/fPAR algorithm recently implemented to derive the next generation of the MODIS LAI/fPAR product for this important biome type.
Document ID
20070023460
Acquisition Source
Ames Research Center
Document Type
Reprint (Version printed in journal)
Authors
Huang, Dong
(Boston Univ. Boston, MA, United States)
Yang, Wenze
(Boston Univ. Boston, MA, United States)
Tan, Bin
(Boston Univ. Boston, MA, United States)
Rautiainen, Miina
(Helsinki Univ. of Technology Helsinki, Finland)
Zhang, Ping
(Boston Univ. Boston, MA, United States)
Hu, Jiannan
(Boston Univ. Boston, MA, United States)
Shabanov, Nikolay V.
(Boston Univ. Boston, MA, United States)
Linder, Sune
(Swedish Univ. of Agricultural Science Alnarp, Sweden)
Knyazikhin, Yuri
(Boston Univ. Boston, MA, United States)
Myneni, Ranga B.
(Boston Univ. Boston, MA, United States)
Date Acquired
August 23, 2013
Publication Date
July 1, 2006
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: 44
Issue: 7
Subject Category
Earth Resources And Remote Sensing
Funding Number(s)
CONTRACT_GRANT: NNA04CC69C
CONTRACT_GRANT: NAS5-96061
Distribution Limits
Public
Copyright
Other

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