Accession Number : AD0346407

Title :   Some Modifications of the Ocean Environment Caused by a Submarine and Surface Craft during Trails in Block Island Sound.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Hiller, A. J. ; Klee, C. W. ; Nefedov, W. B.

Report Date : NOV 1963

Pagination or Media Count : 47

Abstract : Changes in the ocean environment caused by the passage of a submerged submarine and a surface craft through the sea are presented in terms of a comprehensive analysis of water samples obtained from the surface and in depth by special buoy sampling methods and by the continuous-flow analysis of the water picked up by a small bowtowed pickup float used with a sailboat and a powerboat. Differences in the amount of pigment particulate matter and surface tension in and out of the ship wakes were measured and the results are presented and discussed. The results of continuous and simultaneous flow analyses of turbidity, color, pH, and surface tension are presented and the instrumentation is described. Some natural slicks were also studied in the Great Salt Pond, Block Island, Rhode Island, and the analysis results are given. Sources of experimental error and the possibility of sample contamination are also discussed in detail. The presence of iron as the yellow-brown ferric hydroxide has suggested the possibility of some of this material having its origin from the submarine and powerboat during their passage through the sea. (Author)

Descriptors :   (*OCEANS, PHYSICAL PROPERTIES), OCEANOGRAPHY, WAKE, SAMPLING, WATER WAVES, WATER, SUBMARINES, SHIPS

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE