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A hotspot model for leaf canopiesThe hotspot effect, which provides important information about canopy structure, is modeled using general principles of environmental physics as driven by parameters of interest in remote sensing, such as leaf size, leaf shape, leaf area index, and leaf angle distribution. Specific examples are derived for canopies of horizontal leaves. The hotspot effect is implemented within the framework of the model developed by Suits (1972) for a canopy of leaves to illustrate what might occur in an agricultural crop. Because the hotspot effect arises from very basic geometrical principles and is scale-free, it occurs similarly in woodlands, forests, crops, rough soil surfaces, and clouds. The scaling principles advanced are also significant factors in the production of image spatial and angular variance and covariance which can be used to assess land cover structure through remote sensing.
Document ID
19920038375
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Jupp, David L. B.
(CSIRO Div. of Water Resources, Canberra, Australia)
Strahler, Alan H.
(Boston University MA, United States)
Date Acquired
August 15, 2013
Publication Date
December 1, 1991
Publication Information
Publication: Remote Sensing of Environment
Volume: 38
ISSN: 0034-4257
Subject Category
Earth Resources And Remote Sensing
Accession Number
92A20999
Funding Number(s)
CONTRACT_GRANT: NAGW-147
CONTRACT_GRANT: NAGW-2082
Distribution Limits
Public
Copyright
Other

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