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Resolution of grass canopy biomass classesAnalysis of variance methods has been applied to in situ grassland spectral reflectance data in order to determine the classes or levels of total wet biomass that can be resolved spectrally by a single narrow band measurement. Ground-truth clipping of blue grama grass plots was performed immediately following spectral reflectance measurements at 91 wavelength intervals which were 0.005 microns apart over the spectral range from 0.350 to 0.800 microns. It was found that the photographic infrared region of 0.750 to 0.800 microns could be used to distinguish three classes or levels of total wet biomass. Four or five classes, particularly at higher biomass levels, could not be distinguished by this technique.
Document ID
19770061619
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Tucker, C. J.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Date Acquired
August 9, 2013
Publication Date
August 1, 1977
Publication Information
Publication: Photogrammetric Engineering and Remote Sensing
Volume: 43
Subject Category
Earth Resources And Remote Sensing
Accession Number
77A44471
Funding Number(s)
CONTRACT_GRANT: NSF BMS-73-02027-A02
CONTRACT_GRANT: NSF GB-31862X2
CONTRACT_GRANT: NSF GB-41233X
Distribution Limits
Public
Copyright
Other

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