Detection of phenological change in cultivated and uncultivated vegetation with multispectral video
Author
Kliman, Douglas HartleyIssue Date
1987Keywords
Phenology -- Arizona -- Palo Verde Nuclear Generating Station Region.Vegetation dynamics -- Arizona -- Palo Verde Nuclear Generating Station Region.
Nuclear power plants -- Environmental aspects -- Arizona.
Palo Verde Nuclear Generating Station (Ariz.)
Advisor
Reeves, Richard W.
Metadata
Show full item recordPublisher
The University of Arizona.Rights
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.Abstract
Multispectral video (MSV) images were used to measure phenological changes in cultivated and uncultivated vegetation communities surrounding the Palo Verde Nuclear Generating Station (PVNGS). Multispectral video imagery was acquired from aircraft on seven dates between the middle of June and the end of September, 1986. Images representing three sites near the PVNGS were selected to calculate Ratio Vegetation Index (RVI) values for seven surface cover types. Mean RVI values were tested sequentially for change, plotted as a function of time, and then compared to a moisture index and the crop calendar. MSV detected changes in cultivated vegetation corresponding to the crop calendar. Changes in natural vegetation and the non-vegetated cover types were also detected, but did not correlate to the moisture index. There is insufficient evidence to determine if detected changes in uncultivated vegetation were the result of phenological changes or electronic noise.Type
textThesis-Reproduction (electronic)
Degree Name
M.A.Degree Level
mastersDegree Program
Graduate CollegeGeography and Regional Development