海洋科学
海洋科學
해양과학
MARINE SCIENCES
2013年
2期
118-125
,共8页
曹丛华%白涛%高松%徐江玲%曹雅静%吴玲娟%赵鹏
曹叢華%白濤%高鬆%徐江玲%曹雅靜%吳玲娟%趙鵬
조총화%백도%고송%서강령%조아정%오령연%조붕
FVCOM(Finite-Volume Coastal Ocean Model)%胶州湾%风暴潮%漫滩
FVCOM(Finite-Volume Coastal Ocean Model)%膠州灣%風暴潮%漫灘
FVCOM(Finite-Volume Coastal Ocean Model)%효주만%풍폭조%만탄
FVCOM (Finite-Volume Coastal Ocean Model)%the Jiaozhou Bay%storm surge%inundation
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.
基于海錶氣壓項改進的FVCOM(Finite-Volume Coastal Ocean Model)海洋模式,研髮膠州灣高分辨率三維風暴潮漫灘數值模式(JS-FVCOM).利用 JS-FVCOM 模式通過對天文潮、檯風彊度和徑流3要素的不同組閤,共設計瞭5箇試驗,分彆進行風暴潮漫灘模擬實驗.分析各試驗結果得到如下結論:(1)隨著檯風最大風速的增加,風暴潮增水迅速增加,噹綜閤水位超過防潮隄高程後增水速度明顯減慢.海水淹沒範圍和淹沒深度受綜閤水位超防潮隄高程時間影響明顯.(2)在入海河流的河口區,噹洪水位與高潮位相遇時,由于高潮位的頂託作用,洪水下洩不暢,造成綜閤水位上升明顯,極易髮生海水漫溢現象.JS-FVCOM 的模擬結果清楚地再現瞭海水漫隄的淹沒過程,可為緊急情況下的人員疏散提供科學的基礎數據.
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.