A Study of Numerical Simulation of Nearshore Breaking Wave Model (II)

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Project title

Code/計畫編號

NSC98-2623-E006-005-D

Translated Name/計畫中文名

近岸激浪及潮位數值模式之研究(II)

Project Coordinator/計畫主持人

Tai-Wen Hsu

Funding Organization/主管機關

National Science and Technology Center for Disaster Reduction

Co-Investigator(s)/共同執行人

溫志中

Department/Unit

Department of Hydraulic and Ocean Engineering,NCKU

Website

https://www.grb.gov.tw/search/planDetail?id=1752604

Year

2009

Start date/計畫起

01-01-2009

Expected Completion/計畫迄

31-12-2009

Bugetid/研究經費

1138千元

ResearchField/研究領域

海洋科學

由於全球科技快速發展，軍事戰備已導向高科技及電子化的應用，因此海軍設備為符合戰爭需求，也應走向高科技及電子化的趨勢。海戰區域的範圍甚大，海戰環境的影響需要精確的評估與預報。在登陸作戰時，波形因而地形影響產生淺化與折射，進而於近岸處產生激浪過程，此種近岸激浪，將影響登陸艦艇之安定與操作，故預報近岸區域波形變化之激浪過程，可以降低登陸艇作戰可能發生之不確定性。本計畫目的在於建立台灣環島沿岸之近岸激浪預報模式及正確的潮汐預報資料，以整合海軍氣象中心之海浪預報作業，完成從深海到近岸海浪預報模式的建立。本計畫分三年進行，目前進度為第二年。第一年度為建立適用台灣環島之近岸激浪預測模式及潮汐預報，選擇適當地點評估模式之適用範圍與準確度。第二年度則是建立模式激浪預報與潮汐品管控制和預報流程，依據激浪模式之適用性，進行參數最佳化的調整，以增強模式預報能力。第三年度目標為建立沿岸之激浪預測，並整合三年計畫成果，完成台灣環島海域之激浪預報模式。 Owing to the recent high technology development, the naval battle region is spreading quickly and widely. Therefore, in order to prevent the warfare mistakes from complicated environment, it is required to estimate the accurate sea conditions for battle ship operations. The present study is to carry out as an extensive 3-year project. The establishment of an operational numerical nearshore wave breaking model that fits the requirements of the naval battle conditions is the major purpose of this research. This project is the second year. In this investigation, the comparison is made to validate the usefulness of the model using both simulated results and the observational data. Observed tidal data will be corrected and analized to achieve a good quality of data control. It is desirable to increase the accuracy and efficiency of the forecast of the nearshore wave breaking model by testing relative key parameters. In the last year, an efficient operational procedure for the forecast of the nearshore wave model will be demonstrated and established. The finer grids in the numerical simulation will particularly be used to enhance the ability of the forecast system.

Keyword(s)

激浪模式
拉格倫基系統
近岸激浪預報
潮汐資料品管和預報
nearshore wave model
lagranging system
tidal forecast nearshore wave

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A Study of Numerical Simulation of Nearshore Breaking Wave Model (II)

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