长江中游地区输沙率与流量异步测验研究与应用

Journal of China Hydrology(2011)

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Abstract
按照行业规范要求,长期以来,施测输沙率必须同步施测流量。流量测次布置一般以水位级和水情等水文要素变化而定,而沙峰过程与洪峰过程不完全同步。因此,为使其测量同步,致使流量测次过多,迫切需要对传统输沙率测验方法进行改进,以提高流量、输沙测验的时效性。本文介绍的这种方法就是采用部分流量权重系数推算断面平均含沙量,也称输沙率与流量异步测验。
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Key words
discharge,sediment rate,middle reach of the Yangtze River,asynchronous measurement
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