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ERTS-1 imagery and native plant distributionsA method is developed for using ERTS spectral signature data to determine plant community distribution and phenology without resolving individual plants. An Exotech ERTS radiometer was used near ground level to obtain spectral signatures for a desert plant community, including two shrub species, ground covered with live annuals in April and dead ones in June, and bare ground. It is shown that comparisons of scene types can be made when spectral signatures are expressed as a ratio of red reflectivity to IR reflectivity or when they are plotted as red reflectivity vs. IR reflectivity, in which case the signature clusters of each component are more distinct. A method for correcting and converting the ERTS radiance values to reflectivity values for comparison with ground truth data is appended.
Document ID
19750043279
Document Type
Conference Proceedings
Authors
Musick, H. B.
Mcginnies, W.
Haase, E.
Lepley, L. K. (Arizona, University Tucson, Ariz., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Subject Category
EARTH RESOURCES AND REMOTE SENSING
Meeting Information
Annual Conference on Remote Sensing in Arid Lands(Tucson, AZ)
Distribution Limits
Public
Copyright
Other