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首页> 外文期刊>Journal of oceanography >Characteristics of Coastal-Trapped Waves Induced by Typhoon along the Southeast Coast of Honshu, Japan
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Characteristics of Coastal-Trapped Waves Induced by Typhoon along the Southeast Coast of Honshu, Japan

机译：日本本州东南沿海台风诱发的海浪诱捕特征

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摘要

Mooring observations using ADCP, electromagnetic current meters and thermometers were performed to clarify the vertical and horizontal structure of coastal-trapped waves (CTWs) on continental shelf and slope on the eastern side of Sagami Bay, Japan, in August and September 2003. A strong inflow associated with CTW caused by Typhoon 0315 (CTW15) was observed with remarkable downwelling. The maximum current due to CTW15 was over 100 cm s~(-1), confined to the upper layer shallower than 90 m. The CTW (CTW10) induced by Typhoon 0310, was associated with the coastal upwelling and maximum outflow was 33 cm s~(-1); the currents were extended near the bottom at 230 m depth. Remarkable discrepancies were found between the current structures of CTWs. CTW15 was explained by superposing the second CTW mode on the first CTW mode, whereas CTW10 was explained by the first CTW mode. The generation and propagation processes of both CTWs were reproduced by numerical experiments using a three-dimensional level model. The model results indicated that the difference of modal characteristics between CTW15 and CTW10 already exists in the CTW generation region and are due to difference of the wind direction, i.e., the typhoon's path.
机译：于2003年8月和9月，使用ADCP，电磁电流表和温度计进行了系泊观测，以弄清日本相模湾东侧大陆架和斜坡上的海岸陷波（CTW）的垂直和水平结构。观察到由0315号台风（CTW15）引起的与CTW相关的流入，并有明显的下倾。 CTW15引起的最大电流超过100 cm s〜（-1），限制在上层浅于90 m处。 0310号台风引起的CTW（CTW10）与沿海上升流有关，最大流出量为33 cm s〜（-1）。电流在230 m深度的底部附近扩展。目前，CTW的结构之间存在显着差异。通过将第二CTW模式叠加在第一CTW模式上来解释CTW15，而通过第一CTW模式来解释CTW10。通过使用三维水平模型的数值实验，再现了两个CTW的产生和传播过程。模型结果表明，CTW15和CTW10之间的模态特征差异已经存在于CTW产生区域，并且是由于风向（即台风路径）的差异所致。

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