2014—2016年广州海域咸潮入侵状况浅析

Analysis on Saltwater Intrusion in Guangzhou Sea Area During 2014—2016

咸潮入侵对居民生活、农业生产、工业生产以及生态环境造成较大影响。根据广州市海域咸潮实时连续监测系统数据,对2014—2016年广州市海域咸潮入侵特点、影响咸潮入侵的因素进行了分析,并分析了台风期间盐度异常升高状况。结果表明,2014—2015年枯水期咸潮上溯能力远远强于2015—2016年同期。咸潮上溯不仅与径流、潮汐动力息息相关,海平面上升、河口河道地形变化、局地风应力也对其有一定的影响。

Saltwater Intrusion has a great impact on residents living, agricultural production, industrial production and ecological environment. Based on the real-time continuous monitoring data, this paper analyzed the characteristics and the influencing factors of saltwater intrusion in Guangzhou sea area during 2014—2016. Also,it analyzed abnormal salinity increase during the typhoon Nida. The results showed that the saltwater intrusion in dry season during 2014—2015 was much stronger than that in the dry season during 2015—2016. Saltwater intrusion was not only related to runoff and tide,but also affected by the sea level, topographical change and local wind stress.