长荡湖风浪特征观测研究  

Observation study on the characteristics of wind wave in Changdang Lake

作　　者：张怡辉 魏庆菲 朱金格[1] 汪院生 杨志伟 胡维平[1] ZHANG Yihui;WEI Qingfei;ZHU Jinge;WANG Yuansheng;YANG Zhiwei;HU Weiping(State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology Chinese Academy of Sciences,Nanjing 210008,China;Nanjing Guohuan Science and Technology Co.,Ltd.,Nanjing 210008,China;Jiangsu Taihu Water Conservancy Planning and Design Institute Co.,Ltd.,Suzhou 215106,China;Jiangsu Changdang Lake Tourism Holdings Co.,Ltd.,Changzhou 213224,China)

机构地区：[1]中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,江苏南京210008 [2]南京国环科技股份有限公司,江苏南京210008 [3]江苏省太湖水利规划设计研究院有限公司,江苏苏州215106 [4]江苏长荡湖旅游控股有限公司,江苏常州213224

出　　处：《江苏水利》2022年第2期1-4,8,共5页Jiangsu Water Resources

基　　金：江苏省水利科技项目(2020066);中国科学院南京地理与湖泊研究所“一三五”突破项目(NIGLAS2018GH02)。

摘　　要：基于长荡湖不同位置的风浪实测资料,对实施水利优化工程后的长荡湖风浪特征进行了分析。结果表明,风速较大时,湖心水域总体风浪强度较大,长荡湖谱峰周期与平均波周期和跨零周期都存在显著线性相关。生态潜堤可以有效削减西湖近岸水域风浪强度,有效波高衰减百分比介于56%~81%,平均周期衰减百分比介于14%~31%。西部近岸水域风浪强度的削减,有利于水体透明度增加,从而为近岸水域水生植被的修复提供较好的生境条件。Based on the measured wind waves datas at different locations in Changdang Lake,the wind waves characteristics in Changdang Lake after the implementation of water conservancy optimization project are analyzed.The results show that when the wind speed is high and the overall wind wave intensity in the central waters of the lake is high,the spectral peak period of Changdang Lake has a significant linear correlation with the mean wave period and the zero crossing period.The ecological submerged dike can effectively reduce the wind wave intensity in the coastal waters of the West Lake,the significant wave high attenuation percentage is between 56%and 81%,and the mean period attenuation percentage is between 14%and 31%.The reduction of wind wave intensity in the western coastal waters is conducive to the increase of water transparency,thereby providing better habitat conditions for the restoration of aquatic vegetation in the coastal waters.

关 键 词：风浪 潜堤 有效波高 平均波浪周期 

分 类 号：TV882.9[水利工程—水利水电工程]