Title :
Gyre-scale current measurements using reciprocal acoustic transmission
Author :
Worcester, Peter ; Dushaw, Brian ; Howe, Bruce
Author_Institution :
Scripps Instn. of Oceanogr., California Univ., La Jolla, CA, USA
Abstract :
Experiments conducted at steadily increasing ranges to explore the feasibility of using reciprocal acoustic transmissions to measure currents in the midocean are discussed. The relevant theory is given, followed by a description of the experiment. Acoustically derived tidal currents and subinertial currents are compared with independent measurements. The circulation around a triangle in the North Pacific approximately 1000 km on a side is computed, but no direct measurements are available for comparison
Keywords :
flow measurement; oceanographic regions; oceanographic techniques; underwater sound; AD 1987; North Pacific; current; dynamics; gyre; measurement; ocean; reciprocal acoustic transmission; subinertial currents; technique; tidal currents; underwater sound; Acoustic measurements; Acoustic propagation; Current measurement; Instruments; Oceans; Physics; Sea measurements; Signal resolution; Transceivers; Turning;
Conference_Titel :
Current Measurement, 1990., Proceedings of the IEEE Fourth Working Conference on
Conference_Location :
Clinton, MD
DOI :
10.1109/CURM.1990.110892
