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1870 年长江特大洪水是多因叠加和强化的结果, 因之要预测它也要从各方面去研究。如特大洪水前的先行降雨和洪水所反映的大气环流状况及太阳活动情况等。本文把1931 年、1954年、1991 年长江大洪水前一年内缅甸北部有7 级以上大震及1998 年长江大洪前一年内缅北有6级左右震群集中活动的相关指标移用于1870 年长江特大洪水前, 发现其前一年, 即1869 年缅北亦有7 级以上大震发生。震洪相关的物理机制是与地震活动有关的地下放气使孟加拉湾向长江流域输送的水气更多,如遇北方冷气团南下则降大雨致洪。另外,1870 年长江洪水之所以比1931 年、1954 年、1991 年和1998 年长江洪水还大, 我们认为1870 年4 月11 日在长江上游山区有7 级以上大震发生, 且震前有大雪发生, 是叠加在前述致洪因素上的另一因素。
The extraordinary flood in the Yangtze River in 1870 was the result of many overlaps and intensifications. Therefore, it is also predicted that it should also be studied in various fields. Such as the atmospheric circulation and the solar activity as reflected in the pre-flood and flood-related floods. In this paper, the correlative indexes of concentrated activity above magnitude 7 in northern Burma within one year before the Great Flood of 1931, 1954, and 1991 and that of around 6 in North Burma in the year preceding 1998 were shifted to 1870 In the year before the extraordinary flood in the Yangtze River, it was discovered that the previous year, that is, there was a magnitude 7 or higher quake in Burma in 1869. The physical mechanism related to the earthquake and flood is that the underground gassing associated with the seismic activity causes more water vapor in the Bay of Bengal to be transported to the Yangtze River basin and rains in the event of a southward flow of the northern air mass. In addition, the reason why the Yangtze River flood in 1870 was greater than the flood in the Yangtze River in 1931, 1954, 1991 and 1998 is that we believe there was a magnitude 7 or higher earthquake on the upper reaches of the Yangtze River on April 11, 1870, with snowfall before the earthquake The occurrence is another factor superimposed on the aforementioned flood factors.