磨刀门水道枯季咸潮上溯规律分析  

Analysis of the mechanism on the saltwater intrusion in Modaomen estuary

作　　者：陈荣力 刘诚 高时友 

机构地区：[1]珠江水利科学研究院,广州510611

出　　处：《水动力学研究与进展（A辑）》2011年第3期312-317,共6页Chinese Journal of Hydrodynamics

基　　金：水利部公益性行业科研专项经费项目(200901032);国家自然科学基金资助项目(50909110);广东省自然科学基金资助项目(9151061101000001);水体污染控制与治理科技重大专项项目(2009ZX07423-001)

摘　　要：该文通过分析磨刀门水道咸潮上溯实测资料,揭示了该水道咸潮运动规律及上溯机理,认为潮汐动力与咸潮运动密切相关,盐度梯度力是促进水道内咸潮上溯的主要动力,径流是抑制咸潮上溯的主要动力,咸淡水混合状态随潮差变化而变化,径流下泄形式以及对咸潮的作用效果也随之变化,由此得出调水压咸的合适时机。Based on the observation data, in this paper the mechanism of the saltwater intrusion was analyzed in Modaomen estuary. The results show that the salinity gradient is the main driver factor for saltwater intrusion, the tide has close relationship with the saltwater intrusion, the salinity structure changes according to tidal range, and the way of the runoff discharging and its impact on saltwater intrusion also change according to it. Based on above mentioned, the appropriate time in scheduling of main reservior in Pearl River watershed for estuarine fresh water supply is estimated.

关 键 词：咸潮上溯 磨刀门水道 盐水楔 咸淡水混合 潮汐 盐度梯度 

分 类 号：P731.23[天文地球—海洋科学]