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The seasonality of AVHRR data of temperate coniferous forests - Relationship with leaf area indexThe relationship between the advanced very high resolution radiometer (AVHRR) normalized difference vegetation index (NDVI) and coniferous forest leaf area index (LAI) over the western United States is examined. AVHRR data from the NOAA-9 satellite were acquired of the western U.S. from March 1986 to November 1987 and monthly maximum value composites of AVHRR NDVI were calculated for 19 coniferous forest stands in Oregon, Washington, Montana, and California. It is concluded that the relationships under investigation vary according to seasonal changes in surface reflectance based on key biotic and abiotic controls including phenological changes in LAI caused by seasonal temperature and precipitation variations, the proportions of surface cover types contributing to the overall reflectance, and effects resulting from large variations in the solar zenith angle.
Document ID
19910031617
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Spanner, Michael A.
(NASA Ames Research Center; TGS Technology, Inc. Moffett Field, CA, United States)
Pierce, Lars L.
(NASA Ames Research Center Moffett Field, CA, United States)
Running, Steven W.
(Montana, University Missoula, United States)
Peterson, David L.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 15, 2013
Publication Date
August 1, 1990
Publication Information
Publication: Remote Sensing of Environment
Volume: 33
ISSN: 0034-4257
Subject Category
Earth Resources And Remote Sensing
Accession Number
91A16240
Funding Number(s)
CONTRACT_GRANT: NCA2-138
Distribution Limits
Public
Copyright
Other

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