太湖波浪特征参数反演计算  

Inversion calculation of wave characteristics parameters in Taihu Lake

作　　者：姜龙 李一平[1,2] 王文才[2,3] 杜薇[4] 王建威 JIANG Long;LI Yiping;WANG Wencai;DU Wei;WANG Jianwei(Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;College of Environment, Hohai University, Nanjing 210098, China;South China Institute of Environmental Science, Guangzhou 510655, China;Nanjing Institute of Environmental Science, Ministry of Environmental Protection, Nanjing 210042, China;Power China Huadong Engineering Corporation Limited, Hangzhou 310014, China)

机构地区：[1]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098 [2]河海大学环境学院,江苏南京210098 [3]环境保护部华南环境科学研究所,广东广州510655 [4]环境保护部环境科学研究所,江苏南京210042 [5]中国电建集团华东勘测设计研究院有限公司,浙江杭州310014

出　　处：《水资源保护》2018年第3期68-74,共7页Water Resources Protection

基　　金：国家自然科学基金(51579061;51579071);创新研究群体科学基金(51421006);国家重点研发计划资助(2016YFC0401703)

摘　　要：为研究声学多普勒流速仪(acoustic doppler velocimetry,ADV)测量的流速与水压数据在湖泊波浪特征参数反演中的适用性,在太湖梅梁湖和湖心区两个区域进行野外观测,利用预处理后的水压和流速数据进行傅里叶变换和转换获得表面波浪谱,取截断频率为0.03~0.5 Hz对表面波浪谱进行反演计算。结果表明,梅梁湾5月和湖心7月使用水压数据反演得到的有效波高分别为0.454 m、0.187 m,有效波周期分别为2.82 s、2.56 s;使用ADV流速数据反演计算得到的有效波高分别为0.451 m、0.181 m,有效波周期分别为2.82 s、2.62 s;与使用压力式方向波潮仪测得的有效波高(0.461 m,0.180 m)和有效波周期(2.77 s,2.60 s)非常接近且变化趋势基本相同,可见ADV的水压和流速数据可用来进行湖泊的波浪的计算。In order to study the application of the data of velocity and water pressure measured by acoustic doppler velocimeter（ ADV） in the inversion calculation of wave characteristics parameters,field observations in two sites in Taihu Lake were carried out, and the data of water pressure and velocity after preprocessing were Fourier transformed to obtain surface wave spectra,taking the truncation frequency of 0. 03 - 0. 5 Hz to have inversion calculation. The results showed that the effective wave heights obtained from the inversion calculation of water pressure data of May in Meiliang Bay and of July in lake heart were 0. 454 m,187 m,respectively,and the effective wave periods of which were 2. 82 s,2. 56 s,respectively. The effective wave heights of May in Meiliang Bay and of July in lake heart calculated by using ADV velocity data were 0. 451 m,0. 181 m respectively,and the effective wave periods of which were 2. 82 s,2. 62 s,respectively,which is very close to the effective wave height（ 0. 461 m,0. 18 m） and effective wave period（ 2. 77 s,2. 60 s） obtained by DWR,and the change trend is basically the same. Accordingly,ADV pressure and velocity data can be used for the lake wave calculation.

关 键 词：波浪特征 波谱分析 反演计算 声学多普勒流速仪 压力式方向波潮仪 太湖 

分 类 号：X143[环境科学与工程—环境科学]