摘要
风浪是湖泊中重要的水动力因素,会影响航行、水上构筑物安全、水体中物质交换过程。风浪研究对构筑物设计和湖泊生态系统研究都具有重要意义。在淀山湖风浪开展了为期78 h的现场观测,同时观测了风速、风向。对测定结果进行拟合后得出淀山湖赵田湖水域风浪平均波高的经验计算公式。通过验证,该公式拟合值与实测值的平均误差为13%,能较准确反映淀山湖风浪及其影响因素的关系。根据风速资料统计结果,和对淀山湖赵田湖水域风浪和风速风向关系式的拟合,得出结论:淀山湖防风安全标准建议定为8级大风,以抗平均波高0.5 m的风浪作为设计标准。
Wind wave is an extremely important hydrodynamic factor in lakes.It can influence shipping,artificial construction and exchange of substances in the water.The observation in situ on the wind-wave has been carried out for 78 hours.At the same time,wind speed and wind direction were also recorded.After calculating,the emperical wind-wave height formula in Dianshan Lake is obtained.The deviation of calculated values of wave height from observed values is less than 13 percent,which means that the formula is correct.According to statistics of wind speed and simulating results,it is suggested that the artificial constructions in Dianshan Lake should stand force eight wind which can make wind height reach 0.5 m.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2011年第S1期39-43,共5页
Resources and Environment in the Yangtze Basin
基金
上海市科委科技攻关计划项目(08DZ1203106)<上海淀山湖富营养化防治与生态修复试验项目>子课题--千墩浦前置库项目
关键词
淀山湖
赵田湖
风浪
波高
风速
风区长度
Dianshan Lake
Zhaotian Lake
wind-wave
wave height
wind speed
wind fench
