超强台风“威马逊”对南海西北海域海洋环境的影响

发布时间：2018-04-04 14:49

  本文选题：台风　切入点：“威马逊”()　出处：《热带海洋学报》2016年06期

【摘要】：2014年第9号超强台风"威马逊"(1409)过境南海并穿越琼州海峡进入北部湾,给海南、广东和广西造成了严重损失,并对南海西北海域海洋动力与生态环境产生了重要的影响。文章利用卫星遥感水色水温及风场数据,分析了台风前后海表温度、悬浮泥沙浓度、叶绿素浓度、初级生产力及上升流分布特征与变化。研究结果表明:超强台风"威马逊"诱发了强烈的混合夹卷和上升流,并加强了季节性上升流;海表温度最大降幅近2℃,相对台风路径呈显著的"右偏性",而台风引起的强降水却具强烈的"左偏性";台风后悬浮泥沙浓度平均升高51.4%,叶绿素浓度增幅达28%,且最大浓度有3d的延迟,初级生产力增加34%;上层水体混合加剧,混合层深度平均增长近10.4m。
[Abstract]:The Super Typhoon Weimason 1409 (No. 9 of 2014) transiting the South China Sea and crossing the Qiongzhou Strait into the Beibu Gulf has caused serious losses to Hainan, Guangdong and Guangxi, and has had an important impact on the marine dynamics and ecological environment in the northwest waters of the South China Sea.Using satellite remote sensing data of water color water temperature and wind field, the characteristics and changes of sea surface temperature, suspended sediment concentration, chlorophyll concentration, primary productivity and upwelling before and after typhoon were analyzed.The results show that Super strong Typhoon "Weimason" induces strong mixed convection and upwelling, and strengthens seasonal upwelling, and the sea surface temperature decreases by nearly 2 鈩，

本文编号：1710423