本研究應用ROMS(Regional Ocean Modeling System)模式模擬台灣海域環流流場，以了解台灣海域之環流特性，在應用ROMS模式模擬台灣海域環流前，模式參數之設定及調整是重要且必然之ㄧ步，本研究針對ROMS模擬台灣海域環流之模擬結果，調整ROMS模式之參數設定，以獲取較佳之模擬結果。
模擬過程中，模式邊界計算出之溫、鹽值會出現極端值，導致模式計算過程不穩定且海流流速異常。因此在模式邊界設置海綿層以加強邊界之混合，增設海綿層後，溫、鹽異常之現象已獲得改善。
本研究嘗試使用不同之邊界條件模擬環流，討論模擬結果之合理性，最後得到一較為穩定，且流場特性符合實際流場之案例，給出建議之邊界條件組合，並將模擬結果與實測資料及前人文獻做比對，以驗證模式結果之正確性。

ROMS model is applied to understand the characteristic of circulation in Taiwan water, The value of mode setting is important for the results of simulation with ROMS mode. Therefore we try to adjustment the mode setting to get the optimal simulation.
During the process of current simulation, the extreme values of temperature and salinity field occurred on the boundary that unsteabled the simulation result during the process of simulation and varied the current values. The problem was solved by setting the Sponge to strengthen the mixes on the boundary.
We also try use different boundary contions on our mode. Compare the results of simulation and experimental data, we get some advised boundary contions for our mode. With those setting, our mode can describe filed representation of circularion properly.

1.Arakawa, A. and V. R. Lamb.,“Methods of computational physics”Academic press,pp.174-265,1977

2.Ezer, T. Arango, H. and Shchepekin, A. F., “Developments in terrain-following ocean models ：intercomparisons of numerical aspects”,Ocean Modelling, NO.4, pp. 249-267 ,2002

3.Song, Y. T. and Hadvogel, D., ”A semi-implicit ocean circulation model using a generalized topography-following coordinate system”, Journal of Computational Physics, NO.115, pp. 228-244,1994

4.Shchepetkin, A. F. and McWilliams, J. C., “A method for computing horizontal pressure-gradient force in an oceanic model with nonaligned vertical coordinate”, Journal of Geophysical Research, vol.108, No. C3, doi:10.1029/201JC001047,2003

5.Wu, C. –R., Tang, T. Y., and Lin, S. F. (2005) “ Intra-seasonal variation in the velocity field of the northeastern South China Sea, ” Continental Shelf Research, 25, pp. 2075-2083.

6.詹森、邱朝聰、連綮慧, “TSNOW 現場觀測資料報告,台灣海峽海況即時預報模式第二年-潮汐、潮流數值模擬結果之驗證”,台灣海峽海況即時預報模式計畫(TSNOW)研討會論文集, pp. 23-33, 1999

7.孫文心,“近海環境流體動力學數值模型”, 科學出版社, 北京, 2004

8.盧鴻復、吳朝榮,“台灣周邊海域水紋及洋流特徵”海洋技術季刊第十四卷第四期,pp.12-18, 2005

9.楊財銘、曾若玄、張育嘉“利用Lowered ADCP觀測黑潮流場”第29屆海洋工程研討會論文集,pp 601-606, 2007。

10.盧鴻復、吳朝榮、李忠潘“台灣東北海域湧昇流之時空變化”第29屆海洋工程研討會論文集,pp.607-612, 2007