AN ACOUSTIC BACKSCATTER THERMOMETER FOR REMOTELY MAPPING SEA-FLOOR WATER TEMPERATURE

被引：13

作者：

JACKSON, DR

DWORSKI, JG

机构：

[1] Applied Physics Lab., College of Ocean & Fishery Sciences, Univ. of Washington, Seattle

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS | 1992年 / 97卷 / C1期

关键词：

D O I：

10.1029/91JC02166

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

A bottom-mounted, circularly scanning sonar operating at 40 kHz has been used to map changes in water sound speed over a circular region 150 m in diameter. If it is assumed that the salinity remains constant, the change in sound speed can be converted to a change in temperature. For the present system, the spatial resolution is 7.5 m and the temperature resolution is 0.05-degrees-C. The technique is based on comparison of successive sonar scans by means of a correlation algorithm. The algorithm is illustrated using data from the Sediment Transport Events on Slopes and Shelves (STRESS)experiment.

引用

页码：761 / 767

页数：7