Acoustic Tomography Measurements of Kuroshio Current

摘要：

　　Ocean current profiling using ocean acoustic tomography (OAT) was conducted in the Kuroshio Current southeast of Taiwan from August 20 to September 15,2009.Sound pulses were transmitted reciprocally between two acoustic stations placed near the underwater sound channel axis and separated by 48 km.Based on the result of ray simulation,the received signals were divided into multiple ray groups,because it was difficult to resolve the ray arrivals for individual rays.The average differential travel times from these ray groups were used to reconstruct the vertical profiles of currents.The currents were estimated with respect to the deepest water layer via two methods: an explicit solution and an inversion with regularization.The strong currents confined to the upper 200 m rapidly weakened toward 500 m in depth.Both methods give similar results and are consistent with shipboard acoustic Doppler current profiler results in the upper 150 m as well as HYCOM ocean model results.

关键词： ocean acoustic tomography underwater sound channel axis Kuroshio

作者: Chen-Fen Huang Naokazu Taniguchi Arata Kaneko Noriaki Gohda Bruce M.Howe Xiao-Hua

作者单位: Institute of Oceanography, National Taiwan University, Taipei, Taiwan, 10617 Graduate School of Engineering, Hiroshima University, Hiroshima 739-8527, Japan Aqua Environmental Monitoring Limited Liability Partnership, Mihara723-0047, Japan University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Stat

会议类型: 国际会议

会议名称: The 17th Pacific -Asian Marginal Seas Meeting(第十七届太平洋与亚洲边缘海国际会议)

会议地点: 杭州

会议语种:英文

页码: 399-408

在线出版日期: 2013-04-23（万方平台首次上网日期，不代表论文的发表时间）