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Record Details

Record 76 of 53299
Improving crop classification through attention to the timing of airborne radar acquisitions
Author and Affiliation:
Brisco, B.(Kansas Univ. Center for Research, Inc., Lawrence, KS, United States)
Ulaby, F. T.(University of Kansas Center for Research, Inc., Lawrence, KS, United States)
Protz, R.(Guelph, University, Guelph, Ontario, Canada)
Abstract: Radar remote sensors may provide valuable input to crop classification procedures because of (1) their independence of weather conditions and solar illumination, and (2) their ability to respond to differences in crop type. Manual classification of multidate synthetic aperture radar (SAR) imagery resulted in an overall accuracy of 83 percent for corn, forest, grain, and 'other' cover types. Forests and corn fields were identified with accuracies approaching or exceeding 90 percent. Grain fields and 'other' fields were often confused with each other, resulting in classification accuracies of 51 and 66 percent, respectively. The 83 percent correct classification represents a 10 percent improvement when compared to similar SAR data for the same area collected at alternate time periods in 1978. These results demonstrate that improvements in crop classification accuracy can be achieved with SAR data by synchronizing data collection times with crop growth stages in order to maximize differences in the geometric and dielectric properties of the cover types of interest.
Publication Date: Jun 01, 1984
Document ID:
19840056213
(Acquired Nov 28, 1995)
Accession Number: 84A39000
Subject Category: EARTH RESOURCES AND REMOTE SENSING
Document Type: Journal Article
Publication Information: Photogrammetric Engineering and Remote Sensing (ISSN 0099-1112); 50; 739-745
Publisher Information: United States
Contract/Grant/Task Num: DSS-08SU-01525-7-0198; NAS9-15421
Financial Sponsor: NASA; United States
Organization Source: Kansas Univ. Center for Research, Inc.; Lawrence, KS, United States
Guelph Univ. Ontario
Description: 7p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: AIRBORNE RADAR; CLASSIFICATIONS; CROP IDENTIFICATION; FARM CROPS; RADAR IMAGERY; SYNTHETIC APERTURE RADAR; ACCURACY; AIRBORNE EQUIPMENT; GROUND TRUTH; ONTARIO; PHOTOINTERPRETATION
Imprint And Other Notes: Photogrammetric Engineering and Remote Sensing (ISSN 0099-1112), vol. 50, June 1984, p. 739-745. Sponsorship: Department of Supply and Services.
Miscellaneous Notes: Sponsorship: Department of Supply and Services
Availability Source: Other Sources
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