Accession Number : AD0706077

Title :   VARIATION IN THERMAL STRUCTURE AND GEOSTROPHIC CURRENT BETWEEN ALASKA AND HAWAII DETERMINED FROM SYNOPTIC SPACE SECTIONS5

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Gowans,George Keith

Report Date : OCT 1969

Pagination or Media Count : 73

Abstract : Five synoptic space sections along 158W longitude between Hawaii and the Aleutian Islands were developed from data collected by airborne expendable bathythermographs during experiment PARKA, a research project sponsored by the U. S. Navy in 1968. The sections are examined for spacial and temporal variation in thermal structure and geostrophic surface velocity. Two recently developed analysis techniques are employed. Denner's T-S gradient method, wherein thermal and haline contributions to total geostrophic velocity are distinguishable, expedites calculations and results in velocity fields comparable to those developed by the dynamic method. Thermocline parameters are developed using Boston's objective definition of the thermocline, a statistical curve-fitting technique which develops the notion of a Gaussain thermocline. Gross features of thermal structure remain fairly consistent during the heating season; however, thermal fronts are observed to vary in time and space. The distribution of isothermal lines with latitude suggests the possibility of a Taylor-column effect slightly north of Hawaii. (Author)

Descriptors :   (*ANTISUBMARINE WARFARE, RANGE FINDING), (*THERMOCLINES, PACIFIC OCEAN), THERMAL PROPERTIES, SEA WATER, ATMOSPHERIC MOTION, PRESSURE, STATISTICAL ANALYSIS, HEAT, COOLING, TEMPERATURE, SALINITY, DATA PROCESSING, UNDERWATER SOUND, THESES

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE