infrared imaging techniques are given. Infrared image showing surface current directions is 

 presented. Another image shows use of heated water discharges to trace prevaiUng current 

 patterns. Potential applications of infrared in deltaic process and sedimentology investi- 

 gations are noted. 



6807RS0001 

 LEPLEY, L. K., "Coastal Water Clarity from Space Photographs," Photogrammetric 



Engineering, Vol. 34, No. 7, July 1968, pp. 667-674. 

 Keywords: Satellite Photographs, Water Penetration 



Article describes a study to estimate the percentage of the world's nearshore areas that are 

 clear enough to permit mapping of submarine topography using airborne remote sensors and 

 to determine the feasibihty of using satellite photos for coastal water clarity. Satellite 

 photos (color transparencies) taken during the Gemini missions were used to classify water 

 clarity in relation to depths, as: muddy (less than 5 meters), typical (5—20 meters), and 

 clear (greater than 20 meters). A map shows water clarity along coastlines where Gemini 

 photos were available. The report concluded that water clarity can be observed from 

 satellite photos and that 35 percent of the world's coastal waters will allow mapping of the 

 seafloor to depths of 20 meters by photogrammetry. A complete list of references is 

 included. 



6808RS0001 



STAFFORD, DONALD B., "Development and Evaluation of a Procedure for Using Aerial 



Photographs to Conduct a Survey of Coastal Erosion," A Report Prepared for the State 



of North Carolina, Department of Civil Engineering, North Carolina State University, 



Raleigh, N.C., Aug. 1968. 



Keywords: Aerial Photographs, Beach Erosion, North Carolina 



Report describes the use of photos for a beach erosion survey along the North CaroUna 

 Coast. Onslow and Carteret counties were used as a study area in developing and evaluating 

 the procedure. Advantages and disadvantages of using photos for beach erosion surveys are 

 discussed and a review of pertinent literature is included. An effort was made to develop 

 procedures to minimize photo errors. Changes in two locations along the beach, the dune 

 line and the high water Une, were determined. The use of photos for beach erosion surveys 

 was concluded to be applicable to coastal development and has important advantages over 

 other collection methods. 



6809RS0001 

 ANDERSON, RICHARD R., "Remote Sensing of Marshlands and Estuaries Using Color 

 Infrared Photography," Earth Resources Aircraft Program Status Review, Vol. 3, 

 Hydrology, Oceanography, and Sensor Studies, Section 26, pp. 1-23, National Aero- 

 nautics and Space Administration, Manned Spacecraft Center, Houston, Tex., Sept. 

 1968. 



Keywords: Color Infrared Photographs, Marshlands, Estuaries, Patuxent River, Maryland 

 Preliminary report discusses the capability of low-altitude color infrared photos for 

 evaluating marshland vegetation and water quality in estuaries. Various filters were used 

 with color infrared film to determine the optimum filter for the best photos of the estuarine 



38 



