Influence of flood regulation of TGP on water level-flow relation in Cuitan Station

In July,2010,the largest flood since 1987 occurred in upper Yangtze River,causing serious flood control situation of mid-lower Yangtze River,and the first large regulation of TGP for flood retention and peak reduction was implemented.Aiming at the controversy that whether inundation of some areas in Chongqing region was induced by incoming water from upper Yangtze River or regulation of TGP,we carried out comparative analysis on the years when relatively large flood occurred and comprehensive water level-flow relation in the past years.Furthermore,though establishment of dynamics model of TGP,we simulate relation of water levels in Cuntan Station and the level before TGP,taking flow as parameter.The results show there is no obvious influence of flood regulation of TGP on flood control in Chongqing region.