7107RS0001 



BUTLER, WILLIAM E., JR., "Use of Remote Sensing Data Acquisition for Ecological and 

 Planning Studies in the Caribbean," Paper presented at the Caribbean Engineers Seminar, 

 July 12-13, 1971, Port-of -Spain, Trinidad, 23 pp. 

 Keywords: Color Aerial Photographs, Infrared Imagery, Nearshore Ecology, Tobago 

 Paper describes the use of color and color infrared photos and infrared imagery in the 

 analysis of environmental conditions at the southwestern tip of the island of Tobago in the 

 Caribbean. Photos were taken with a 70-mm camera. Coastal features and vegetation 

 identified on the photos are described. Infrared imagery was used to determine water 

 current directions. The photos and infrared imagery will be used in developing environ- 

 mental baseline data and for planning a large coastal resort complex. Data from remote 

 sensors will ensure in the planning stage that the proposed complex will have a minimum 

 impact on the island ecology. Advantages of remote sensing in planning the location and 

 number of field data collection points are noted. 



7108RS0001 



BROWN, W. L., POLCYN, F. C, SELLMAN, A. N., and STEWARD, S. R., "Water Depth 



Measurement by Wave Refraction and Multispectral Techniques," Infrared and Optics 



Laboratory, Willow Run Laboratories, University of Michigan, Ann Arbor, Mich., 1971. 



Keywords: Aerial Photographs, Multispectral Scanner Imagery, Water Depths, Wave 



Patterns 

 Report presents two remote sensing techniques for measuring depths in coastal waters. One 

 technique is based on shallow bottom wave refraction and optical processing of the wave 

 pattern on photos to extract the Fourier transform. The other technique is an analysis of 

 multispectral scanner imagery of reflected radiation of the water surface and the bottom. 

 Both techniques are concluded to be feasible. Procedures for using the techniques and the 

 results at several test sites are presented. The Fourier transform can be used for sea state 

 conditions from photos. Multispectral analysis can be performed by a computer and 

 computer-generated depth charts can be printed. These techniques may not give the desired 

 accuracy in coastal engineering, but they have potential for future appUcations. 



7108RS0002 



THOMAS, REUBEN S., "Comparison of the Coastal Engineering Applications of Color and 

 Color Infrared Aerial Photographs," Unpublished Master of Science Project Report, 

 Department of Civil Engineering, Clemson University, Clemson, S.C., Aug. 1971. 

 Keywords: Color Aerial Photographs, Color Infrared Photographs, Coastal Engineering, 



Long Island, New York 

 Report describes a study of color and color infrared photos to depict coastal features and 

 processes important to coastal engineering. Extensive review of the Uterature is included. 

 Study was a visual comparison of matching color and color infrared photos of the south 

 shore of Long Island. Report concluded that color and color infrared photos are useful in 

 coastal engineering studies, but color photos are best for underwater features and color 

 infrared photos are better for land features and the land-water interface. Capabilities of both 

 film types to show coastal features is given. 



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