CAJ | 학술논문

基于海表气压项改进的FVCOM(Finite-Volume Coastal Ocean Model)海洋模式,研发胶州湾高分辨率三维风暴潮漫滩数值模式(JS-FVCOM).利用 JS-FVCOM 模式通过对天文潮、台风强度和径流3要素的不同组合,共设计了5个试验,分别进行风暴潮漫滩模拟实验.分析各试验结果得到如下结论:(1)随着台风最大风速的增加,风暴潮增水迅速增加,当综合水位超过防潮堤高程后增水速度明显减慢.海水淹没范围和淹没深度受综合水位超防潮堤高程时间影响明显.(2)在入海河流的河口区,当洪水位与高潮位相遇时,由于高潮位的顶托作用,洪水下泄不畅,造成综合水位上升明显,极易发生海水漫溢现象.JS-FVCOM 的模拟结果清楚地再现了海水漫堤的淹没过程,可为紧急情况下的人员疏散提供科学的基础数据.
기우해표기압항개진적FVCOM(Finite-Volume Coastal Ocean Model)해양모식,연발효주만고분변솔삼유풍폭조만탄수치모식(JS-FVCOM).이용 JS-FVCOM 모식통과대천문조、태풍강도화경류3요소적불동조합,공설계료5개시험,분별진행풍폭조만탄모의실험.분석각시험결과득도여하결론:(1)수착태풍최대풍속적증가,풍폭조증수신속증가,당종합수위초과방조제고정후증수속도명현감만.해수엄몰범위화엄몰심도수종합수위초방조제고정시간영향명현.(2)재입해하류적하구구,당홍수위여고조위상우시,유우고조위적정탁작용,홍수하설불창,조성종합수위상승명현,겁역발생해수만일현상.JS-FVCOM 적모의결과청초지재현료해수만제적엄몰과정,가위긴급정황하적인원소산제공과학적기출수거.
Based on FVCOM (Finite-Volume Coastal Ocean Model) ocean model with improved sea surface atmosphere item, the high resolution 3D storm surge and inundation numerical model (JS-FVCOM) was developed in the Jiaozhou Bay, which has a much finer resolution especially in the Dagu River Estuary, where the grid sizes equal to about 20 m. Besides, by adopting MPI calculating method, the calculating time can be further reduced, which can satisfy the need of practical operation. With different combinations of three essential factors such as astronomic tides, typhoon intensity and river flux, five numerical experimentations were designed to simulate the process of storm surge. The results show that 1)the storm surge increases rapidly with the increase of typhoon intensity, however, it starts to decrease significantly when the water level is higher than the dike;2)in tidal estuary, where the flooding encounters high tide, the floodplain will happen easily;3) the JS-FVCOM model can successfully simulate the process of the storm surge with reasonable flooded coverage and water level, which can provide scientific and credible simulation data for the emergency response work, such as risk assessment of storm surge and staff evacuation.