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Active microwave responses - An aid in improved crop classificationA study determined the feasibility of using visible, infrared, and active microwave data to classify agricultural crops such as corn, sorghum, alfalfa, wheat stubble, millet, shortgrass pasture and bare soil. Visible through microwave data were collected by instruments on board the NASA C-130 aircraft over 40 agricultural fields near Guymon, OK in 1978 and Dalhart, TX in 1980. Results from stepwise and discriminant analysis techniques indicated 4.75 GHz, 1.6 GHz, and 0.4 GHz cross-polarized microwave frequencies were the microwave frequencies most sensitive to crop type differences. Inclusion of microwave data in visible and infrared classification models improved classification accuracy from 73 percent to 92 percent. Despite the results, further studies are needed during different growth stages to validate the visible, infrared, and active microwave responses to vegetation.
Document ID
19840048711
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rosenthal, W. D.
(Texas A & M University College Station, TX, United States)
Blanchard, B. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1984
Publication Information
Publication: Photogrammetric Engineering and Remote Sensing
Volume: 50
ISSN: 0099-1112
Subject Category
Earth Resources And Remote Sensing
Accession Number
84A31498
Funding Number(s)
CONTRACT_GRANT: NSG-5134
Distribution Limits
Public
Copyright
Other

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