Progress in understanding of Indian Ocean circulation, variability, air–sea exchange, and impacts on biogeochemistry
Progress in understanding of Indian Ocean circulation, variability, air–sea exchange, and impacts on biogeochemistry
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DOI：
10.5194/os-17-1677-2021
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发表时间：
2021-11
期刊：
影响因子：
3.2
通讯作者：
H. Phillips;A. Tandon;R. Furue;R. Hood;C. Ummenhofer;J. Benthuysen;V. Menezes;Shijian Hu;B. Webber;A. Sanchez‐Franks;Deepak Cherian;E. Shroyer;Ming Feng;H. Wijesekera;A. Chatterjee;Lisan Yu;J. Hermes;R. Murtugudde;T. Tozuka;D. Su;Ashutosh Kumar Singh;L. Centurioni;Satya Prakash;J. Wiggert
中科院分区：
文献类型：
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作者：
H. Phillips;A. Tandon;R. Furue;R. Hood;C. Ummenhofer;J. Benthuysen;V. Menezes;Shijian Hu;B. Webber;A. Sanchez‐Franks;Deepak Cherian;E. Shroyer;Ming Feng;H. Wijesekera;A. Chatterjee;Lisan Yu;J. Hermes;R. Murtugudde;T. Tozuka;D. Su;Ashutosh Kumar Singh;L. Centurioni;Satya Prakash;J. Wiggert
摘要。在过去十年中，通过协同努力测量海洋环流和海气交换、探测水团变化以及将物理过程与具有重要生态意义的变量联系起来，我们对印度洋的认识有所提高。已经发现了控制大气和海洋平均状态及变率的新环流路径和机制。这篇综述汇集了自上次全面综述以来对印度洋海洋 - 大气系统的新认识，描述了印度洋环流模式、海气相互作用和气候变率。国际上对印度洋的协同关注促使新技术得以应用，以提供更高分辨率的印度洋过程观测和模型。结果我们发现了小尺度过程在形成大尺度梯度和环流、物理过程与生物地球化学过程之间的相互作用、边界流与内部之间的相互作用以及表层与深海之间的相互作用方面的重要性。在印度洋东南部新发现的一种区域气候模式——宁加洛厄尔尼诺现象，引发了全球海洋中更多关于区域海气耦合和海洋热浪的研究。在过去十年中，我们看到印度洋迅速变暖，并且叠加了海洋热浪形式的极端情况。这些事件促使开展了一些研究，这些研究对印度洋海洋热含量的变率和交换有了新的认识，并凸显了印度洋作为人为热量汇聚地的关键作用。这篇综述论文回顾了过去十年在这些领域的进展。
Abstract. Over the past decade, our understanding of the Indian Ocean has advanced through concerted efforts toward measuring the ocean circulation and air–sea exchanges, detecting changes in water masses, and linking physical processes to ecologically important variables. New circulation pathways and mechanisms have been discovered that control atmospheric and oceanic mean state and variability. This review brings together new understanding of the ocean–atmosphere system in the Indian Ocean since the last comprehensive review, describing the Indian Ocean circulation patterns, air–sea interactions, and climate variability. Coordinated international focus on the Indian Ocean has motivated the application of new technologies to deliver higher-resolution observations and models of Indian Ocean processes. As a result we are discovering the importance of small-scale processes in setting the large-scale gradients and circulation, interactions between physical and biogeochemical processes, interactions between boundary currents and the interior, and interactions between the surface and the deep ocean. A newly discovered regional climate mode in the southeast Indian Ocean, the Ningaloo Niño, has instigated more regional air–sea coupling and marine heatwave research in the global oceans. In the last decade, we have seen rapid warming of the Indian Ocean overlaid with extremes in the form of marine heatwaves. These events have motivated studies that have delivered new insight into the variability in ocean heat content and exchanges in the Indian Ocean and have highlighted the critical role of the Indian Ocean as a clearing house for anthropogenic heat. This synthesis paper reviews the advances in these areas in the last decade.