1000 km square scale tomography experiment in the Kuroshio extension area using 200 Hz ocean acoustic tomography system

Author

Fujimori, Hidetoshi ; Nakano, Iwao ; Nakamura, Toshiaki ; Yuan, Guan ; Barada, Kazuo ; Maejima, YOshimitusu ; Kamoshida, T. ; Kaya, Akio

Author_Institution

Japan Marine Sci. & Technol. Center, Yokosuka, Japan

fYear

1998

fDate

15-17 Apr 1998

Firstpage

43

Lastpage

46

Abstract

Ocean acoustic tomography is one of the observation method to the Ocean and a observation was carried out at JAMSTEC (Japan Marine Science and Technology Center) in the Kuroshio Extension region, east of Japan from July to September 1997. In this observation, five transceivers (consist of sound source and hydrophone array) were used and arranged 28-36N, 143-154 E area. The longest distance between transceivers were about 1000 km range and moored about 1,100 m depth. These transceivers communicated eight times (in August) or four times (in July and September) a day with each other. Time series of 1,000 km square propagation data in this observation area were recorded and analyzed. The time series of 3D temperature fields shows the variability of Kuroshio Extension with high time resolution

Keywords

acoustic tomography; hydrophones; oceanographic techniques; time series; transceivers; 1000 km; 1100 km; 200 Hz; 3D temperature fields; JAMSTEC; Japan Marine Science and Technology Center; Kuroshio Extension region; hydrophone array; ocean acoustic tomography; time series; transceivers; Acoustic arrays; Acoustic propagation; Marine technology; Ocean temperature; Sea surface; Sonar equipment; Time series analysis; Tomography; Transceivers; Transponders;

fLanguage

English

Publisher

ieee

Conference_Titel

Underwater Technology, 1998. Proceedings of the 1998 International Symposium on

Conference_Location

Tokyo

Print_ISBN

0-7803-4273-9

Type

conf

DOI

10.1109/UT.1998.670056

Filename

670056