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今年我省长江汛情的主要特点是:(1)汛情发生早、起涨快。长江干流3月中旬就出现历史同期最大春汛,大通来量高出常年同期3倍。6月下旬,大通流量猛增32700立方米每秒,最大日涨幅达7700立方米每秒,大通、南京下关站水(潮)位分别上涨3.52米和2.46米,最大日涨幅分别达0.76米和0.43米,涨水速率超过了历史上的最高值。南京高潮位6月25日就超过警戒线达8.83米。(2)洪峰次数多、来量大。长江上游共产生8次较大洪峰,每次洪峰的来量都比较大。大通来量超过70000立方米每秒达两个多月,其中超过
This year, the main features of the Yangtze River flood in our province are: (1) floods occur early, rising quickly. The middle reaches of the Yangtze River in mid-March appeared the largest spring flood in history over the same period, the amount of chase coming three times higher than the same period last year. In late June, the flow of Chase surged by 32700 cubic meters per second, the largest daily gain of 7700 cubic meters per second, Chase, Nanjing Shimonoseki water (tide) were up 3.52 meters and 2.46 meters, the largest daily gains of 0.76 meters And 0.43 meters, the water rate exceeded the highest in history. Nanjing peak on June 25 exceeded the warning line of 8.83 meters. (2) The peak number of times, to a large amount. The upper reaches of the Yangtze River produced a total of eight major flood peaks, each coming to the amount of relatively large. Chase incoming volume of more than 70,000 cubic meters per second for more than two months, of which more than