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1998年8月中旬,江苏省睢宁县普降大暴雨、特大暴雨。降雨强度之大,河道水位之高,排水历时之久,受灾程度之重,都是1976年徐洪河开挖以来所未有的。严重的灾情,引起了各级领导的广泛关注。痛定思痛,水利部门及时组织了调查和反思。 一、雨情、水情与灾情 去年8月12日至17日,全县连降暴雨,总雨量达325.2毫米,最大的一次降雨从13日14时至14日23时,暴雨中心在县城区,中心雨量244.1毫米,西南部潼河流域沿线李集镇降雨220毫米,黄圩232.9毫米,桃园镇并伴随龙卷风袭击。 8月中旬的强降雨过程,恰在前期连续阴雨之后,土壤含水量饱和,降雨产流量
In mid-August 1998, Suining County, Jiangsu Province, heavy heavy rain, heavy rain. The large rainfall intensity, the high water level in the river, the long duration of drainage and the heavy damage were all unprecedented in the excavation of Xu Honghe in 1976. Serious disaster, has aroused widespread concern of leaders at all levels. Bitter experience, water conservancy department promptly organized the survey and reflection. First, the rain, water conditions and disasters Last August 12 to 17, the county even downpour, the total rainfall of 325.2 mm, the largest one from 14:00 on the on the 14th to 23 at 23 o’clock on the 14th, the center of heavy rain in the county, The rainfall of 244.1 millimeters in the center was 220 millimeters in Liji Town along the Tong River basin in the southwest and 232.9 millimeters in Huangxu. Taoyuan town was accompanied by a tornado attack. In mid-August, the process of heavy rainfall, just after the first consecutive rainy season, saturated soil moisture, rainfall and runoff