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Evaluation of corn/soybeans separability using Thematic Mapper and Thematic Mapper Simulator dataMultitemporal Thematic Mapper, Thematic Mapper Simulator, and detailed ground truth data were collected for a 9- by 11-km sample segment in Webster County, IA, in the summer of 1982. Three dates were acquired each with Thematic Mapper Simulator (June 7, June 23, and July 31) and Thematic Mapper (August 2, September 3, and October 21). The Thematic Mapper Simulator data were converted to equivalent TM count values using TM and TMS calibration data and model based estimates of atmospheric effects. The July 31, TMS image was compared to the August 2, TM image to verify the conversion process. A quantitative measure of proportion estimation variance (Fisher information) was used to evaluate the corn/soybeans separability for each TM band as a function of time during the growing season. The additional bands in the middle infrared allowed corn and soybeans to be separated much earlier than was possible with the visible and near-infrared bands alone. Using the TM and TMS data, temporal profiles of the TM principal components were developed. The greenness and brightness exhibited behavior similar to MSS greenness and brightness for corn and soybeans.
Document ID
19840050752
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Pitts, D. E.
(Lockheed Engineering and Management Services Co., Inc. Houston, TX, United States)
Badhwar, G. D.
(Lockheed Engineering and Management Services Co., Inc. Houston, TX, United States)
Thompson, D. R.
(Lockheed Engineering and Management Services Co., Inc. Houston, TX, United States)
Henderson, K. E.
(NASA Johnson Space Center Houston, TX, United States)
Shen, S. S.
(Lockheed Engineering and Management Services Co., Inc. Houston, TX, United States)
Sorensen, C. T.
(Lockheed Engineering and Management Services Co., Inc. Houston, TX, United States)
Carnes, J. G.
(Lockheed Engineering and Management Co. Houston, TX, United States)
Date Acquired
August 12, 2013
Publication Date
May 1, 1984
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: GE-22
ISSN: 0196-2892
Subject Category
Earth Resources And Remote Sensing
Accession Number
84A33539
Distribution Limits
Public
Copyright
Other

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