- 期刊
高頻測流雷達（CODAR）的原理、計算與軍事上的利用－高頻測流雷達實測資料與數值模擬結果之比較
The Theory and Calculation of CODAR and its Military Applications-Comparison of CODAR Observations with Model Results
摘要
一、高頻雷達偵測海流是一種最新的技術，所偵測知海流，是全面性的。美國海軍於1990年開始，投入大量人力、物力進行研究其軍事用途。美國海岸巡防對與國土安全於2003完成美國東西岸的測流雷達的設置。二、本文作者對最新「高頻沿岸測流雷達」實測資料進行學理推導、資料分析，並利用三維「海洋數值模型」結果對「高頻沿岸測流雷達」實測資料進行驗證。本文作者是全球第一人使用海洋數值模擬結果校正「高頻偵流雷達」資料。三、本文研究動機為運用海洋數值模型，並將模型結果與普勒測流儀所測得之資料進行比對，並利用校正好的模型結果去比對雷達測出來海水表面水流，詳細驗正高頻測流雷達的準確性，以便作為日後國軍用途考量。本文證明高頻測流雷達實測資料相當準確，而且運用起來，方便且可信度高。四、作者建議如果在臺灣沿岸佈設5－6個座長距離高頻測流雷達，不僅能提供即時航行服務（表面水流），同時空難與海難時，也可以預知海流方向，提供有用搜救資訊。對國軍而言，可即時掌握海戰場環境狀況，對「戰場環境即時預報系統」的預測準確性，亦有大助益。同時建議我國向美購買反潛機P3-C時，應該要求加裝與美軍相同設備－－高頻測流雷達。
並列摘要
1. HF current radar, a new technology and sensor of mapping sea surface currents, providing two dimensional measurements with a long time period. In 1992, the US Navy starts to study coastal current radars with a large amount of people and budgets for military applications. Since 2003, the US Coast Guard and the US Department of Homeland Security have completed the installation of coastal current radars in the both sides of US coastlines.2. The author of this paper examines the calculation and theory of 'High Frequency coastal current radar', and also uses a three-dimensional ocean model to verify HF radar-measured observations (CODAR). The author is the first person to do the comparison of model results with observations in the world.3. In this study, the Princeton Ocean Model (POM) is used and validated by ADCP measurements, and the validated model is used to verify the HF radar-measured surface currents. Our purpose of this study is to verify the accuracy of HF radar-measured current velocity. This study shows that CODAR observations are quite accurate which are convenient and quite reliable.4. The author suggests that 5-6 HF coastal current radars are recommended to place along the coastline around Taiwan Island, providing instant services of navigation and rescue information. Of course, it also provide great in-situ observations for numerical model validations, which increase the accuracy of 'NOWCAST model for marine battlespace environment'. At the mean time, with army sale with the US, we should ask for installation of airborne HF current radars onboard.