6300RS0002 



EMERY, K. O., "An Aerial Study of Hawaiian Wave Patterns," Pacific Science, Vol. 17, 

 1963, pp. 255-260. 



Keywords: Aerial Reconnaissance, Wave Patterns, Hawaii 



Although this study did not use photos, the survey was accomplished entirely by aerial 

 reconnaissance of wave direction and period. Flights over a large area surrounding the 

 Hawaiian Islands were made to record wave directions and periods to compile a 

 wave-pattern map. The map illustrated the effects of wave refraction and shielding caused 

 by the different islands. Beach conditions on the islands correlated with the predominant 

 wave characteristics at a particular location. Wave directions were easily correlated with 

 meteorological conditions at the time of the survey. 



6300RS0003 

 KELLER, MORTON, "Tidal Current Surveys by Photogrammetric Methods," Photogram- 

 metric Engineering, Vol. 29, No. 5, Sept. 1963, pp. 824-832. 



Keywords: Aerial Photographs, Photogrammetry, Water Currents, Charleston Harbor, 

 South Carolina, Ocracoke Inlet, North Carolina. 



Use of photogrammetry for tidal current surveys by the USC&GS is presented. 

 Photogrammetry can determine currents at a number of points over a large area. Floating 

 targets are placed on the water and their movement is recorded on photos; data reduction is 

 accompUshed on a stereo plotter where target movement appears as x-parallax. Comprehen- 

 sive current surveys were conducted in Charleston Harbor, South CaroUna; Ocracoke Inlet, 

 North CaroUna; and Tampa Bay, Florida. Important factors are discussed, including photo 

 characteristics, camera type, film type, weather, sunspots, and target design and placement. 

 Panchromatic film is concluded to be best for current surveys. USC&GS intends to increase 

 use of photogrammetry in tidal current surveys and prepare more detailed data on the 

 procedures used. 



6306RS0001 

 ATHEARN, W. D., and RONNE, F. C, "Shoreline Changes at Cape Hatteras: An Aerial 

 Photographic Study of a 17-Year Period," Naval Research Reviews, No. 6, Office of 

 Naval Research, Washington, D. C, June 1963, pp. 17-24. 



Keywords: Aerial Photographs, Coastal Changes, Cape Hatteras and Hatteras Inlet, North 

 Carolina 



Report discusses use of periodic photos to determine shoreUne changes at Cape Hatteras and 

 Hatteras Inlet, North Carolina. Measurements were made on eight photo coverages from 

 1945 to 1962. The south beach at Cape Hatteras eroded about 1,500 feet between 1945 and 

 1953 and an additional 300 feet between 1953 and 1958 but was stable after 1958. The east 

 beach was stable and the spit at the tip of the Cape changed orientation. The western side of 

 Hatteras Inlet eroded about 6,000 feet during the 17-year period and the eastern side 

 accreted about 400 feet. 



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