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Estimating structural attributes of Douglas-fir/western hemlock forest stands from Landsat and SPOT imageryRelationships between spectral and texture variables derived from SPOT HRV 10 m panchromatic and Landsat TM 30 m multispectral data and 16 forest stand structural attributes is evaluated to determine the utility of satellite data for analysis of hemlock forests west of the Cascade Mountains crest in Oregon and Washington, USA. Texture of the HRV data was found to be strongly related to many of the stand attributes evaluated, whereas TM texture was weakly related to all attributes. Data analysis based on regression models indicates that both TM and HRV imagery should yield equally accurate estimates of forest age class and stand structure. It is concluded that the satellite data are a valuable source for estimation of the standard deviation of tree sizes, mean size and density of trees in the upper canopy layers, a structural complexity index, and stand age.
Document ID
19920061595
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Cohen, Warren B.
(NASA Headquarters Washington, DC United States)
Spies, Thomas A.
(USDA, Forestry Sciences Laboratory, Corvallis OR, United States)
Date Acquired
August 15, 2013
Publication Date
July 1, 1992
Publication Information
Publication: Remote Sensing of Environment
Volume: 41
Issue: 1 Ju
ISSN: 0034-4257
Subject Category
Earth Resources And Remote Sensing
Accession Number
92A44219
Funding Number(s)
CONTRACT_GRANT: NAGW-1460
Distribution Limits
Public
Copyright
Other

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