environment. Several color infrared photos of the Patuxent River in Maryland are shown. 

 Information on water salinity, turbidity, currents, pollution, marshland vegetation, and 

 submerged vegetation can be obtained from color infrared photos. A tabular summary of 

 identifiable imagery on color infrared photos of marshlands and estuaries is included. 



6810RS0001 



ANSON, ABRAHAM, "Development of Aerial Color Photography for Terrain Analysis," 

 Photogrammetric Engineering, Vol. 34, No. 10, Oct. 1968, pp. 1048-1057. 



Keywords: Color Aerial Photographs, Water Penetration, Key West, Florida 



Article describes the comparison of black and white, color, and color infrared photos for 

 terrain analysis, including a test of water penetration capability of color and color infrared 

 film. Test was conducted by the U.S. Naval Oceanographic Office near Key West, Florida. 

 Excellent underwater imagery was obtained with the color and color infrared photos. 

 Considerable ocean bottom detail was also recorded on color infrared photos taken at 

 altitudes of 2,000 and 5,000 feet. 



6811RS0001 



CONROD, A. C, KELLY, M. G., and BOERSMA, A., "Aerial Photography for Shallow 



Water Studies on the West Edge of the Bahama Banks," Report RE-42, Experimental 



Astronomy Laboratory, Massachusetts Institute of Technology, Cambridge, Mass., Nov. 



1968. 



Keywords: Color Aerial Photographs, Image Enhancement, Nearshore Ecology, Vegetation, 



Water Depths, Bahama Banks 



Report describes a study of the shallow water ecology on the west edge of the Bahama 

 Banks. Capabilities and advantages of photos for nearshore ecological studies and marine 

 geology are discussed. Unique features and relationships of the marine biota can be 

 interpreted from photos that are difficult or impossible from the surface or by diving. A 

 vegetation map prepared from the photos is presented. Results of image enhancement 

 experiments to improve the capabiUty of extracting data from photos are described. Image 

 slicing and film density tracing techniques were examined and found useful. Several example 

 photos and enhanced images are presented. An appendix discusses the use of photos to 

 determine water depths. 



6811RS0002 



STROUD, LINDA M., and COOPER, ARTHUR W., "Color Infrared Aerial Photographic 



Interpretation and Net Primary Productivity of a Regularly -Flooded North CaroUna Salt 



Marsh," Report No. 14, Water Resources Research Institute, North Carolina State 



University, Raleigh, N. C, Nov. 1968. 



Keywords: Color Infrared Photographs, Marshlands, Vegetation, Oak Island, North Carolina 



Report discusses the use of color infrared photos to estimate the primary productivity of 



the grasses in a tidal marsh at Oak Island, North Carolina. Photos were taken at a scale of 



500 feet per inch. Color photos were also available, but did not show the marsh grasses in 



detail. The color infrared photos were used to classify the species of marsh grass and the 



vegetation height within the species communities; and to determine the areal distribution of 



39 



