Seite - 316 - in Book of Full Papers - Symposium Hydro Engineering

COMMISSION INTERNATIONALE DES GRANDS BARRAGES ------- VINGT-SIXIÈME CONGRÈS DES GRANDS BARRAGES Autriche, juillet 2018 ------- NUMERICAL SIMULATION AND EXPERIMENTAL RESEARCH ON REGULAR MECHANISM OF LOCAL CLIMATIC CHANGES AROUND GIANT HYDROPOWER RESERVOIR Yangbing Deng1,*,Jin Xu2, Xiaolong Chen1,Guanglin Meng1,Mi Li1 1. Xiluodu Hydropower Plant, CHINA YANGTZE POWER CO.,LTD 2. Overhaul and maintenance factory, CHINA YANGTZE POWER CO.,LTD CHINA 1. INTRODUCTION As severe global warming climate comes into effect, the occurrence, frequency and intensity of extreme climate events are increasing rapidly since unbalanced precipitation exists in China’s Southwest region.In addition,environmental temperature and humidity significantly effect animals and plants, as well as the stability of the geologic structure[1-2].Hydraulic engineering construction plays an important role in water resource allocations,avoiding drought and flood[3-4].However,the reservoirs formed by hydraulic engineering structures may affect air temperature and air humidity by changing different evaporation capacity,which could lead to various changes causing extreme climate or disasters[5-7],such as changes to annual precipitation,annual mean temperature and annual evapotranspiration rate. Since giant reservoirs could affect local climate over some distance[8-10],many scholars carried out research topics on quantitative and qualitative analysis of reservoir effects.Their research is mainly based on theory analysis,calculation simulation, prediction or site measured data analysis for giant hydropower 316