Quantifying, Predicting, and Exploiting Uncertainty(Qpe) in the North Eastern Sea of Taiwan (II)---Coordination Project

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Project title

Code/計畫編號

NSC98-2623-E002-018-D

Translated Name/計畫中文名

臺灣周邊海域(東北)水下偵測整合計畫(II)---總計畫

Funding Organization/主管機關

National Science and Technology Center for Disaster Reduction

Co-Investigator(s)/共同執行人

陳琪芳(計畫主持人)
王崇武
宋國士
劉家瑄

Department/Unit

Department of Engineering Science and Ocean Engineering, NTU

Website

https://www.grb.gov.tw/search/planDetail?id=1754606

Year

2009

Start date/計畫起

01-01-2009

Expected Completion/計畫迄

31-12-2009

Co-Investigator(s)

Ming-An Lee

Bugetid/研究經費

3590千元

ResearchField/研究領域

海洋科學

臺灣東北海域有琉球島弧、沖繩海槽與東海大陸棚等地形，受到黑潮運動及地形影響，易於大陸棚邊緣地區產生內波運動，造成聲速的急遽變化，除影響聲納運用及潛艦航行安全，亦會造成測深儀、ADCP 海流儀及側掃聲納等以聲波為探測工具之結果有所偏差。需了解東北海域水下偵測效能，全盤性在時間及空間上的分佈狀況，才得以做為水下監偵、兵力運用及反潛操演規劃之依據。基於上述需求，「海洋聲學整合計畫」團隊規劃三年計畫於東北海域執行水下偵測整合計畫，計畫內包括七個子計畫，針對水文及底質資料量測、背景噪音量測、音傳實驗、偵測效能分析、反潛作戰模式分析進行研究分析。全案計畫主要目標為執行掌握其在東北海域環境的變化特性與機制，進而運用聲學模式與聲納方程式分析各項海洋環境因數對水下偵測音響參數之影響，以做為東北海域水下目標定位與反潛戰術設計之依據，建立東北海域從環境觀測、聲學特性分析到反潛戰術設計之整合水下偵測能力，提升反潛戰力。第一個年度工作已經初步完成的項目有水文環境之調查、海底沈積物之蒐集、高頻的音傳損耗量測、背景噪音等，這些初步的研究結果將有助於明年將進行更大型的聯合實驗The Northeastern Sea of Taiwan borders Ryukyu Islands, Okinawa Trough and continental shelf. Under the influence of Kuroshio Current and the local landscape, it is not uncommon that internal waves are formed in the vicinity of continental shelf break, which causes large variation of speed of sound. This not only affects the use of sonar and submarine safety, but also causes uncertainty in measurement, such as ADCP sea current measurement and side scan sonar. There is a clear need to understand the effect of northeastern water on undersea measurement in its totality (space and time) in order to fully fulfill underwater surveillance capability, the use of troops, and anti-submarine detection. Based on the above reasons, this proposal aims a three-year effort to perform underwater surveillance in northeastern waters. This proposal includes seven sub-projects, focusing on hydrology and seabed property detection, background noise measurement, acoustic propagation experiment, measurement efficiency analysis, anti-submarine warfare analysis. The preliminary study in the first year includes the investigation in ocean environment, such as collections of ocean sediment on the bottom, measurement of transmission loss in high frequency band and the ambient noise. The progresses of individual sub-projects are summarized in the progress report.

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Quantifying, Predicting, and Exploiting Uncertainty(Qpe) in the North Eastern Sea of Taiwan (II)---Coordination Project

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