长江口南港河段咸潮入侵分析

ANALYSIS OF SALTWATER INTRUSION AT THE SOUTH CHANNEL IN THE CHANGJIANG ESTUARY

本文根据吴淞、高桥的大量实测资料，分析了南港河段咸潮入侵的变化特性。利用长江大通站长系列的流量资料，采用流量机率推算水质机率。南港河段每年受到盐水入侵影响，但不同水文年入侵程度相差悬殊。

Based upon a large amount of field data from the Wusong wakerworks and Gaoqiao Hy-drographic Station,this paper analyses the characteristics of temporal and spatial variation of saltwater intrusion into the South Channel.Probabilities associated with different water qual-ities are calculated according to the probabilities of the corresponded fresh water discharges from the long records of the Datong Station. The water quality in the South Channel is affect-ed by the saltwater intrusion each year,but the intensity varies greatly with different hydro-logic years.