本文根据大通站水文系列组成的分析,提出了长江感潮段潮位的主、副港预报方法和原理。主港为河口的吴淞和湖区界的大通;副港为沿江各港(站),建立了一系列多元回归函数预报副港的潮位,精度符合要求。 Based on the analysis of the composition of hydrological series in Datong station, this paper puts forward the method and principle of primary and secondary port forecast of tidal level in the tidal range of the Yangtze River. The main port is the Wusong estuary and Chase in the lake boundary; the secondary port is a port along the river (station), the establishment of a series of multiple regression function to predict the tide level of vice port, the accuracy meets the requirements.