Saltwater intrusion often occurs in estuarine areas during the dry season,which has a serious impact on local water intake.Based on the analysis of the measured salinity and tide level data of six stations from September to November in 2022 and Datong station historical flow data,it is found that the occurrence of saltwater intrusion is closely related to the size of runoff,and the flow low water caused by summer drought is the main factor causing the early occurrence of saltwater intrusion.The salinity value was inversely proportional to the runoff and positively proportional to the tidal range.The salinity has the characteristics of semilunar cycle and diurnal variation due to tidal variation.
关键词
盐水入侵/大通流量/潮汐/北支倒灌/现场观测
Key words
saltwater intrusion/runoff of Datong station/tidal/saltwater intrusion from the northern branch/in-situ observation
维普
万方数据