摘要
鄱阳湖是中国第一大淡水湖,属季节性吞吐型湖泊。本文收集了鄱阳湖周边水文站水位资料、气象站风速资料,以及湖区地形高程观测资料,采用基于波作用量平衡方程的数值模拟方法计算分析了湖区波浪场,并与规范方法的计算结果进行了比较。两种方法的计算结果总体上接近,采用数值方法计算结果比规范方法略大一些。研究表明,鄱阳湖周边极端高水位有效波高H_(13%)在1.70~2.08 m之间,平均周期T_(m)在4.39~5.25 s之间。
Poyang Lake is the largest freshwater lake with seasonal throughput in China.In this paper,the following data of the Poyang Lake were collected and analyzed,the water level data of hydrological stations,the wind field observation data of the meteorological station and the bathymetry measured in the lake area.Then,the wave height distribution in Poyang Lake was calculated and analyzed with numerical simulation methods based on wave action conservation equation.The calculation results of numerical methods and standard methods were compared.The results of the comparison showed that the calculation results of the two methods are generally close to each other,and the calculation results of the numerical method are slightly larger than that calculated with the standard method.Finally,we concluded that the significant wave height(H_(13%))around Poyang Lake under extreme high water level conditions varied between 1.70m and 2.08 m and the mean wave period(T_(m))varied between 4.39s and 5.25s.
作者
琚烈红
杨氾
胡松涛
陈芳
JU Liehong;YANG Fan;HU Songtao;CHEN Fang(Nanjing Hydraulic Research Institute,Nanjing 210024,China;Jiangxi Academy of Water Science and Engineering,Nanchang 330029,China)
出处
《海洋湖沼通报(中英文)》
北大核心
2025年第6期182-189,共8页
Transactions of Oceanology and Limnology
基金
国家重点研发计划(2022YFC3204304-3)。
关键词
鄱阳湖
水位
风速
波浪
Poyang Lake
water level
wind speed
wave
