王冑2006-07-252018-06-282006-07-252018-06-282003http://ntur.lib.ntu.edu.tw//handle/246246/14827我們已在自力研發的船舶雷達遙測基礎上更進一步強化了雷達遙測資料之定量分析能力，另外理論方面我們也提出了一個由內波驅動的動力機制，定性上可以解釋過去在台灣灘陸棚區上發現之區域性環流現象Large-scale internal waves, such as internal tidal waves, internal solitons, are energetic and ubiquitous physical processes in the northern South China Sea (NSCS) basin. In the NSCS, the surface signatures of internal solitons, with lateral scale spanning hundreds of kilometers, could be seen from satellite imageries quite often. These signals correspond usually to bands of rips, with width of 1-2 kilometers, on the surface. When a ship passes through such a rip band, one may encounter choppy seas full of rolling waters, and the rip bands are seemingly endless, originating from one horizon and extending to the other. According to previous observations, we anticipate that these rip bands are surface signatures of internal solitons, whose ancestors are internal tidal waves generated along the Batan island chain, east of Luzon Strait. The flow-topography interaction mechanism, i.e. tidal currents pushing stratified waters flowing through the saddle shaped sill topography in between islands, could interpret the generation of internal tidal waves well. The latter then propagate into the NSCS and evolve into internal solitons along their way to the western NSCS basin, in which they are dissipated and eliminated finally. The evolution process of internal tidal waves and its possible relationship with the NSCS circulations are interesting and important topics to the regional oceanography. During the past year we have established the real-time remote-sensing technology by using a marine-Radar, which is the first step of the future field works for the present project. Additionally, we have done some theoretical works. The mechanism developed could interpret qualitatively the occurrence of a clockwise eddy found on the continental shelf during the ASIAEX experiment.application/pdf115226 bytesapplication/pdfzh-TW國立臺灣大學海洋研究所[SDGs]SDG14reporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/14827/1/912611M002013.pdf