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首页> 外文会议>International Workshop on Marine Remote Sensing in Northwest Pacific Region; 20041011-12; Beijing(CN) >Monitoring of the Tsushima Warm Current at the Tsushima/Korea Straits
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Monitoring of the Tsushima Warm Current at the Tsushima/Korea Straits

机译：对马/海峡对马暖流的监测

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The research Institute for Applied Mechanics (RIAM), Kyushu University has been conducting long-term acoustic Doppler current profiler (ADCP) observation since February 21, 1997 along the cruise line between Hakata and Pusan to measure the current structure and its time variations at the Tsushima Straits. The Camellia, kitted with a multi-level type ADCP system (VM-BBADCP, 300 kHz, RD Instruments) makes round trips between Hakata and Pusan three times a week at a cruising speed of about 17 kt. The data sampling interval is about 24 seconds and 8 m in depth, from 18 m to 258 m. However the data within the range of 15% of the total depth from the bottom are not of reliable quality (missing data). Since the maximum water depth is about 240 m along the ferry track, the ship velocity relative to the bottom can be measured everywhere through the bottom tracking by the ADCP, implying that the current velocity can be measured relative to the bottom. Constituents of tidal current were decomposed from the observed current data to obtain accurately the mean current without tidal aliasing errors. Using the mean current data, the time variations of the structure and volume transport of the Tsushima current were studied.
机译：九州大学应用力学研究所（RIAM）自1997年2月21日以来一直在博多和釜山之间的航行路线上进行长期声学多普勒电流剖面仪（ADCP）观测，以测量当前结构及其在时空的时变。对马海峡。装有多级ADCP系统（VM-BBADCP，300 kHz，RD仪器）的山茶，每周以约17 kt的巡航速度在博多和釜山之间往返两次。数据采样间隔大约为24秒，深度为8 m，从18 m到258 m。但是，从底部到总深度的15％范围内的数据质量不可靠（丢失数据）。由于沿着轮渡航迹的最大水深约为240 m，因此可以通过ADCP通过底部跟踪在各处测量相对于底部的船速，这意味着可以相对于底部测量当前速度。从观察到的电流数据中分解出潮流成分，以准确获得平均电流，而没有潮流混叠误差。利用平均电流数据，研究了对马电流的结构和体积输运的时间变化。

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