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通过用无量纲分析和线性回归方法对2002-2003年太湖4测点1000多组波浪资料的分析,给出了太湖不同时段风浪平均波高(H)与风区长度(F)、水深(d)、风速(v)6个关系模式.在此基础上,开展了模式的误差分析及与前人模式对比.结果表明,太湖北部不同区域风浪平均波高的计算应选用不同计算模式,但是可用如下形式表示:其中,a1-a8为和地形及水生植物覆盖度等相关的参数.误差分析结果显示:离岸距离大于1km区域的参数a1-a8的取值分别为0.217456、1、0.15、0.6、0.09、0.6、1.0、0.0052,模式估算平均波高的误差小于24％;近岸区参数a7大于1,a8取0,a4取值介于0.6-0.72,a5介于0.00131-0.00168,模式估算平均波高的误差较大,表明近岸区波浪还需进行进一步的观测研究.
Through the analysis of more than 1000 wave data of 4 measuring points in Taihu Lake from 2002 to 2003 by non-dimensional analysis and linear regression method, the average wave height (H) and wind length (F), water depth (d) , Wind velocity (v) .On this basis, the error analysis of the model and its comparison with the previous model were carried out.The results show that different calculation modes should be used in the calculation of the average wave height in different regions of northern Taihu Lake, but the following form The results of error analysis show that the values of parameters a1-a8 with the offshore distance greater than 1km are 0.217456, 1.05, 0.6, 0.09 respectively , 0.6,1.0,0.0052, the error of the average wave height estimated by the model is less than 24%; the parameter a7 of the nearshore area is greater than 1, the value of a8 is 0, the value of a4 is between 0.6-0.72, and the value of a5 is 0.00131-0.00168 The error is larger, indicating that the near-shore wave needs further observation and study.