唐存勇2006-07-252018-06-282006-07-252018-06-282003http://ntur.lib.ntu.edu.tw//handle/246246/14828Three Acoustic Doppler Current Profilers (ADCP) were deployed in the central Luzon Strait to monitor current velocity. The duration of deployment varied with location and spanned from 1997 to 1999. The observed current velocity indicated that the Kuroshio consistently intruded into the South China Sea. The current velocity demonstrated small annual variation, but large intraseasonal variation. The change of monsoons, from northeast to southwest, did not cause noticeable variation in current velocity. The Miami Isopycnic Coordinate Ocean Model (MICOM) forced by the wind data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) was used to interpret the observed current velocity. Comparison between the model output and observation validates the use of the model result in interpreting annual and interannual current velocity variation in the Luzon Strait. The numerical model result also shows that the Kuroshio consistently intruded into the South China Sea, displaying a noticeable annual variation in the central Luzon Strait. The large interannual variation masked the annual variation so that the annual variation was difficult to observe. The interaction between the Kuroshio and the South China Sea cyclonic flow caused the current velocity variation in the both the Luzon Strait and the northern sector of the South China Sea. In summer, the Kuroshio intrudes as a loop current intrusion and confines to the northern South China Sea. In winter, the Kuroshio can intrude deeply into the South China Sea, besides intruding as loop current intrusion in the northern South China Sea. The annual transport variation across the Luzon Strait is primarily westward. The eastward transport was found in summer during certain years when the Kuroshio intrusion was weak. In spite of the fact that the Kuroshio intruded consistently into the South China Sea, transport out of the South China Sea was observed. In summer, the current on the northern South China Sea shelf break contributed to the transport out. The variation in zonal transport was caused by the Sea Surface Height (SSH) variation occurring west of northern Luzon. Wind stress curl is responsible for this SSH variation. The variation of Kuroshio strength had little impact on the intrusion.application/pdf884062 bytesapplication/pdfzh-TW國立臺灣大學海洋研究所reporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/14828/1/912611M002014.pdf