Accession Number : AD0807463

Title :   A STUDY OF THE ONSET OF WHITECAPPING WITH INCREASED SURFACE WIND SPEEDS; AND A REPORT ON A PRELIMINARY DRIFT-BOTTLE STUDY OF THE SURFACE CURRENTS OF LAKE SUPERIOR.

Descriptive Note : Status rept. no. 3, 1 Nov 66-1 Feb 67,

Corporate Author : NORTHERN MICHIGAN UNIV MARQUETTE DEPT OF PHYSICS

Personal Author(s) : Monahan, Edward C.

Report Date : 01 FEB 1967

Pagination or Media Count : 30

Abstract : At present, the existence of abrupt changes in the physical character of the sea surface at certain wind speeds is indicated by measurements of certain surface related quantities while measurements of other such quantities indicate only smooth transitions in the nature of the sea surface. The data currently available on the occurrence of whitecaps, one measure of the character of the sea surface, are contradictory. It is the purpose of this study to investigate the onset of whitecapping as a function of wind speed, atmospheric stability, and water temperature in order to determine whether the concentration of whitecaps increases abruptly with wind speed, in which case it will be of interest to see how this critical wind speed varies with atmospheric stability and water temperature, or whether whitecap concentration increases slowly with wind speed.

Descriptors :   (*OCEAN WAVES, WIND), LAKES, VELOCITY, OCEAN CURRENTS, CAMERAS, AUTOMATIC, MERCHANT VESSELS, COUNTING METHODS, ATMOSPHERIC TEMPERATURE, TEMPERATURE, SURFACE PROPERTIES, STABILITY, WATER WAVES, DRIFT, CONTAINERS, SAMPLERS.

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE