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淮河流域特大暴雨多由台风造成.7503号台风造成的林庄、上蔡暴雨,6007号台风造成的潮桥暴雨,不但雨量特大而且分别降落在流域西部山区、中部丘陵平原区和东部滨海区,为暴雨移置提供了便利.用暴雨移置法编制的淮河流域24小时点PMP等值线图,以西部山区最大(1300毫米),南部大别山区和东部滨海区次之(1200、1100毫米),中部丘陵平原区最小(900毫米),与实测暴雨分布及全国PMP等值线图一致.流域及其周围的历史特大暴雨是推求可能最大暴雨的最重要依据,暴雨移置是简捷可靠的方法.
The torrential rains caused by Typhoon 7505 in Typhoon Chongzhuang and Shangzhuang and the typhoon 6007 caused by Typhoon Rainfall not only caused heavy rainfall but also landed in the mountainous areas in the western part of the basin, the hilly plain in the middle part and the east coastal area respectively, Which provided the convenience for the heavy rainfall displacements.The PMP contour map of 24-hour point of Huaihe River Basin, which was prepared by the rainstorm-shifting method, took P 1200 as the largest (1300 mm) in the western mountains, followed by the Dabie Mountains in the south and the eastern coastal areas (1200 and 1100 mm) (900 mm) in the central hilly plain area, which is consistent with the measured rainfall distribution and the national PMP contour map.The historical heavy rainfall in the basin and its surroundings is the most important basis for determining the maximum possible heavy rainstorm, which is a simple and reliable method .