【作者】 石慧； 蔡旭晖； 宋宇；

【机构】 北京大学环境科学与工程学院；

【摘要】 本文使用NCEP再分析风资料,耦合岸边地面站监测数据模拟得到南海北部风场,并分析风场的统计特征;由风场计算得到平均海流场,在此基础上对溢油事故可能产生影响的区域进行评价。风场模拟结果很好地显示了研究区域的季风性特征,统计分析反映了不同季节风矢量的时空变化特征。平均海流场的模拟结果显示,冬季和夏季流向为沿岸边方向,春季和秋季相反,海流流向岸边。因此,溢油事故发生在春季和秋季,更有可能对岸边区域造成污染。更多还原

【Abstract】 Wind fields of the north part of South China Sea are obtained using the NCEP Reanalysis data coupling with data from coastal monitoring stations,and a statistical analysis of the wind fields is conducted.The mean flow fields are computed from the relevant wind fields,based on which an evaluation of the possibly influenced areas by oil spill accidents is established.The simulation results of wind fields well display the monsoonal features of the research area,and the statistics indicate the characters of special and temporal variance of seasonal wind vectors.Simulated mean flow fields show a current direction along the coast in winter and summer,while in spring and autumn,it reverses to towards the coast.Therefore,when oil spill accidents happen in spring or fall,it is more likely to cause contamination to coastal regions.更多还原