...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ocean Dynamics >Ocean response to typhoon Nuri (2008) in western Pacific and South China Sea
【24h】

Ocean response to typhoon Nuri (2008) in western Pacific and South China Sea

机译：西太平洋和南中国海对Nuri（2008）台风的海洋反应

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Typhoon Nuri formed on 18 August 2008 in the western North Pacific east of the Philippines and traversed northwestward over the Kuroshio in the Luzon Strait where it intensified to a category 3 typhoon. The storm weakened as it passed over South China Sea (SCS) and made landfall in Hong Kong as a category 1 typhoon on 22 August. Despite the storm's modest strength, the change in typhoon Nuri's intensity was unique in that it strongly depended on the upper ocean. This study examines the ocean response to typhoon Nuri using the Princeton Ocean Model. An ocean state accounting for the sea-surface temperature (SST) and mesoscale eddy field prior to Nuri was constructed by assimilating satellite SST and altimetry data 12 days before the storm. The simulation then continued without further data assimilation, so that the ocean response to the strong wind can be used to understand processes. It is found that the SST cooling was biased to the right of the storm's track due to inertial currents that rotated in the same sense as the wind vector, as has previously been found in the literature. However, despite the comparable wind speeds while the storm was in western Pacific and SCS, the SST cooling was much more intense in SCS. The reason was because in SCS, the surface layer was thinner, the vorticity field of the Kuroshio was cyclonic, and moreover a combination of larger Coriolis frequency as the storm moved northward and the typhoon's slower translational speed produced a stronger resonance between wind and current, resulting in strong shears and entrainment of cool subsurface waters in the upper ocean.
机译：Nuri台风于2008年8月18日在菲律宾东部的北太平洋西部形成，西北越过吕宋海峡的Kuroshio，在此期间增强为3级台风。风暴在越过南海（SCS）时减弱，并于8月22日登陆香港，成为1级台风。尽管风暴强度适中，但台风努里的强度变化却是独特的，因为它强烈依赖于上层海洋。本研究使用普林斯顿海洋模型研究了海洋对台风努里的反应。在暴风雨发生前12天，通过吸收卫星SST和测高数据来构造一个考虑Nuri之前海表温度（SST）和中尺度涡流场的海洋状态。然后继续进行模拟，而无需进一步的数据同化，因此可以使用海洋对强风的响应来了解过程。正如先前在文献中发现的那样，发现由于惯性电流的旋转与风力矢量的方向相同，SST冷却偏向风暴轨道的右侧。但是，尽管风暴发生在西太平洋和南海地区时风速相当，但南海地区的SST冷却要强烈得多。原因是因为在南海，表层较薄，黑潮的旋涡场是气旋的，而且随着暴风向北移动和台风较慢的平移速度的组合，科里奥利频率增大，风与流之间的共振较强，导致强剪切力和夹带在上层海洋中的凉爽地下水域。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号