珠江河口波浪与风的相关性研究

Study on the Correlation between Wave and Wind in the Pearl River Estuary

为研究珠江河口风浪特征,在收集大万山、澳门两站多年实测波浪资料的基础上,通过建立波高与口外横澜岛站风速之间的关联,分析了伶仃洋河口湾及口外水域在不同风力条件下的波高分布特征。研究表明:大万山站SE向浪与澳门站NNE^E向浪与局地风力相关性高;两站月平均波高最小值出现在季风转换期,东北季风盛行期波高普遍较大;由线性回归得到的计算公式精度较高,具有一定的实用价值。

To study wind wave in the Pearl River Estuary, the correlation between wave and wind are analyzed by associating wave height from two wave stations： Dawanshan and Macao, with wind speed at Henglandao station. Then wave characteristics near the Lingdingyang Bay under different weather condition are discussed. The results show that wave from SE at Dawanshan station and from NNE- E at Macao station is most likely to be determinated by local wind strength. The wave height becomes low as monsoon transition and increases as the northeast monsoon prevailing. The monthly mean wave height at Dawanshan station is about twice as much as that of Macao station. These formulas from linear regression are reliable, providing a practical tool for research on estuarine dynamics.