An Autonomous Investigation of Kuroshio and Mesoscale Impacts on Upper Ocean Response to Typhoon Forcing
An Autonomous Investigation of Kuroshio and Mesoscale Impacts on Upper Ocean Response to Typhoon Forcing
复制标题
黑潮和中尺度对上层海洋对台风强迫响应的影响的自主调查
DOI：
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发表时间：
2012
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影响因子：
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通讯作者：
L. Rainville
中科院分区：
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作者：
Craig M. Lee;J. Gobat;L. Rainville
摘要：这项研究有助于理解：上层海洋对大气强迫的响应以及混合层和过渡层的亚中尺度动力学。该计划还跟随S团队长期致力于开发新的方法，以利用自主技术进行过程级测量。目标是：a)描述上层海洋对台风强迫的反应，特别是台风产生的冷尾流的时间和空间演变；b)展示新的滑翔机搭载的微结构传感器组件在长时间(数周至数月)部署过程中收集高质量湍流测量的效用。台风对太平洋的影响(ITOP)项目汇集了一个由海洋学家和大气科学家组成的国际团队，对海洋对台风强迫的反应进行了高度合作的调查。该项目的创新方面包括提供能够在正在传播的台风前方直接空投自主资产的C130飞机，以及扩展使用驻扎在高雄的世界级考察船R/V Roger Revelle的通道，该R/V能够在台风S过境后不久携带自主资产和快速探测能力进入台风S冷尾流。这使得可以直接测量对台风S过境的即时反应和由此产生的冷尾流的更长时间尺度的演变。该项目的重点是使用十架长航时自主海滑器(其中三架配备了温度微结构传感器)和使用正在进行的快速剖面CTD的船基调查来了解冷尾流的演变。
Abstract : This study contributes to long-term efforts toward understanding: upper ocean response to atmospheric forcing and submesoscale dynamics of the mixed and transition layer. This program also follows the team s long-term focus on developing new approaches for exploiting autonomous technologies for conducting process-level measurements. Objectives are to: A) Characterize the upper ocean response to typhoon forcing, in particular the temporal and spatial evolution of the cold wake generated by a typhoon and B) Demonstrate the utility of a new glider-borne microstructure sensor package for collecting high-quality turbulence measurements over the course of long-duration (weeks to months) deployments. The Impact of Typhoons on the Ocean in the Pacific (ITOP) program brought together an international team of oceanographers and atmospheric scientists to conduct a highly collaborative investigation of the oceanic response to typhoon forcing. Novel aspects of this program included the availability of C130 aircraft capable of air-dropping autonomous assets directly in front of propagating typhoons and extended access to a global-class research vessel, R/V Roger Revelle, stationed in Kaoshiung and capable of carrying autonomous assets and rapid survey capability into the typhoon s cold wake, shortly after the storm s passage. This permitted direct measurement of both the immediate response to the typhoon s passage and the longer timescale evolution of the resulting cold wake. This project focused on understanding cold wake evolution using a fleet of ten long-endurance autonomous Seagliders (three of which were equipped with temperature microstructure sensors) and ship-based surveys employing a rapid-profiling underway CTD.