A coastal acoustic tomography experiment in the Tokyo Bay

A coastal acoustic tomography experiment in the Tokyo Bay
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发表时间：
2005
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通讯作者：
KANEKOArata;YAMAGUCHIKeisuke;YAMAMOTOTokuo;GOHDANoriaki;Zhenghong;SYAMSUDINFadli;LINJu;NGUYENHong-Quang;MATSUYAMAMasaji;HACHIYAHiroyuki
KANEKOArata;YAMAGUCHIKeisuke;YAMAMOTOTokuo;GOHDANoriaki;Zhenghong;SYAMSUDINFadli;LINJu;NGUYENHong-Quang;MATSUYAMAMasaji;HACHIYAHiroyuki
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作者：
KANEKOArata;YAMAGUCHIKeisuke;YAMAMOTOTokuo;GOHDANoriaki;Zhenghong;SYAMSUDINFadli;LINJu;NGUYENHong-Quang;MATSUYAMAMasaji;HACHIYAHiroyuki

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2002年11月29日至12月10日期间，在东京湾两侧海岸部署了8套海岸声学层析成像（CAT）系统，每隔15分钟测量一次潮流结构。即使在船舶产生的尾流和气泡的严重干扰下，也成功追踪到了东京湾（横滨和千叶之间）的声音传输。通过对声传播条件最佳时期的走时差数据的反演，较好地再现了由北流向南流变化的潮流场。有人认为，CAT 是在航运交通和渔业活动繁忙的沿海海域连续绘制潮流场图的最强大工具。
Eight sets of coastal acoustic tomography (CAT) systems were deployed during November 29 to December 10, 2002 at the coasts on both sides of Tokyo Bay to measure tidal current structures at 15-min interval. Sound transmission across the Tokyo Bay (between Yokohama and Chiba)was successfully traced,even under severe interference from ship generated wakes and bubbles. Tidal current fields changing from northward to southward flow are well reconstructed by the inverse analysis of travel-time difference data for a period with the best sound transmission condition. It is suggested that the CAT is the most powerful tool to continuously map tidal current fields in the coastal seas with heavy shipping traffic and fisheries activity.