NDLI: Assessment of aviris data from vegetated sites in the owens valley, california

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Assessment of aviris data from vegetated sites in the owens valley, california

Content Provider	NASA Technical Reports Server (NTRS)
Author	Elvidge, Christopher D. Rock, B. N. Defeo, N. J.
Copyright Year	1988
Description	Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data were acquired from the Bishop, CA area, located at the northern end of the Owens Valley, on July 30, 1987. Radiometrically-corrected AVIRIS data were flat-field corrected, and spectral curves produced and analyzed for pixels taken from both native and cultivated vegetation sites, using the JPS SPAM software program and PC-based spreadsheet programs. Analyses focussed on the chlorophyll well and red edge portions of the spectral curves. Results include the following: AVIRIS spectral data are acquired at sufficient spectral resolution to allow detection of blue shifts of both the chlorophyll well and red edge in moisture-stressed vegetation when compared with non-stressed vegetation; a normalization of selected parameters (chlorophyll well and near infrared shoulder) may be used to emphasize the shift in red edge position; and the presence of the red edge in AVIRIS spectral curves may be useful in detecting small amounts (20 to 30 pct cover) of semi-arid and arid vegetation ground cover. A discussion of possible causes of AVIRIS red edge shifts in respsonse to stress is presented.
File Size	567384
Page Count	9
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890012791
Archival Resource Key	ark:/13960/t6b32rr7p
Language	English
Publisher Date	1988-09-15
Access Restriction	Open
Subject Keyword	Earth Resources And Remote Sensing Imaging Spectrometers Canopies Vegetation California Infrared Spectra Remote Sensing Spectral Reflectance Chlorophylls Computer Programs Arid Lands Airborne Equipment Spectrum Analysis Plant Stress Vegetation Visible Spectrum Radiometric Resolution Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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