Ocean physical and biogeochemical responses to the passage of Typhoon Meari in the East China Sea observed from Argo float and multiplatform satellites
Ocean physical and biogeochemical responses to the passage of Typhoon Meari in the East China Sea observed from Argo float and multiplatform satellites
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DOI：
10.1029/2008gl035040
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发表时间：
2008-08-12
影响因子：
5.2
通讯作者：
Saino, Toshiro
中科院分区：
文献类型：
--
作者：
Siswanto, Eko;Ishizaka, Joji;Saino, Toshiro
我们使用ARGO浮标和卫星观测相结合的新方法，阐明了海洋物理和生物地球化学对缓慢移动的台风Meari的响应。Meari驱动的上升流给表层带来了更冷、营养丰富的深水，导致海面降温(3-6摄氏度)，初级生产力(PP)增加了三倍。最大表面降温(因此营养物质注入)和峰值PP增强分别落后于Meari通过1天和3天，这意味着显著的PP增强归因于新的生产(NP)。该NP约占东中国外陆架年碳输出量的3.8%，表明台风驱动的上升流对东海外陆架的生物地球化学过程具有重要作用。鉴于Argo浮标和卫星数据的广泛覆盖面，我们的新方法可能会促进对其他盆地的比较研究，并促进对热带气旋在全球海洋生物地球化学循环中作用的理解。
We elucidated ocean physical and biogeochemical responses to slow-moving Typhoon Meari using a new method combining Argo float and satellite observations. Meari-driven upwelling brought colder, nutrient-rich deep water to the surface layer, causing sea surface cooling (3-6 degrees C) and threefold enhancement of primary production (PP). Maximum surface cooling (and hence nutrient injection) and peak PP enhancement lagged Meari's passage by 1 and 3 days, respectively, implying that remarkable PP enhancement was attributed to new production (NP). This NP accounted for approximately 3.8% of annual carbon export in the East China Sea (ECS) outer shelf, suggesting that typhoon-driven upwelling is important for biogeochemical processes in the ECS. Given the wide coverage of Argo float and satellite data, our new approach may prompt comparative studies in other basins and advance the understanding of the role of tropical cyclones in the global ocean biogeochemical cycle.