CAJ | 학술논문

为了模拟近岸港口风暴潮与台风浪的相互作用,利用 ECOMSED和 SWAN,采用嵌套方法,使用海图水深数据、Holland台风模型气压场,选择具有代表性的200808号台风为天气背景,规划4组数值试验,通过单向耦合研究该港区及邻近海域的台风浪和风暴潮水位相互影响。使用ECOMSED模式,按是否考虑波浪作用分别计算苏澳港风暴潮水位。对比结果表明,考虑海浪影响的风应力以后,风暴潮水位更加接近实测值,海浪通过风应力对苏澳港风暴潮位有全局性的调制作用,苏澳港内聚集更多的海水,内外的水位高度差加大,海平面更加倾斜。使用SWAN模式,按是否考虑风暴潮位影响分别计算了苏澳港的台风浪,试验结果表明,波高受风暴潮位的影响是局部的,靠近岸边的有效波高有所增大,增大的幅度约1 m,而水位较深的地方有效波高变化不明显。
위료모의근안항구풍폭조여태풍랑적상호작용,이용 ECOMSED화 SWAN,채용감투방법,사용해도수심수거、Holland태풍모형기압장,선택구유대표성적200808호태풍위천기배경,규화4조수치시험,통과단향우합연구해항구급린근해역적태풍랑화풍폭조수위상호영향。사용ECOMSED모식,안시부고필파랑작용분별계산소오항풍폭조수위。대비결과표명,고필해랑영향적풍응력이후,풍폭조수위경가접근실측치,해랑통과풍응력대소오항풍폭조위유전국성적조제작용,소오항내취집경다적해수,내외적수위고도차가대,해평면경가경사。사용SWAN모식,안시부고필풍폭조위영향분별계산료소오항적태풍랑,시험결과표명,파고수풍폭조위적영향시국부적,고근안변적유효파고유소증대,증대적폭도약1 m,이수위교심적지방유효파고변화불명현。
To estimate the interactive process of the storm surge and typhoon wave of the Suao Harbor in Taiwan Island by using the ECOMSED and SWAN models,the Typhoon Fungwong illustrated by the Holland typhoon model was selected as the meteorological background,the chart data were adopted and the four level nested grids were set ECOMSED is started two times to run for the water level with/without wave effects.The results show that the wave affects the whole Suao Harbor's water level field through the wind shear stress.The water levels with effects of wave are closer to the measurements than those without effects of wave.The typhoon wave makes more water accumulate into Suao Harbor,and consequently, water level difference of the harbor between the inside and outside increases and the slope of the sea surface is intensified.SWAN is also started two times to run for the typhoon wave with and without water level effects.The results show that the effects of water level on the typhoon wave of the Suao Harbor is promi-nent on the area with shallow water but invisible in the deep water.The increase of the significant wave height on the north cape can reach up to about 1 m.