...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of oceanography >Impacts of subtidal motions and the earth rotation on modal characteristics of the semidiurnal internal tide
【24h】

Impacts of subtidal motions and the earth rotation on modal characteristics of the semidiurnal internal tide

机译：潮下运动和地球自转对半日内潮的模态特征的影响

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

Subtidal motions, such as large-scale circulations and mesoscale eddies, frequently occupy on the propagation path of internal waves in the ocean. Through solving a modified Taylor-Goldstein equation with subtidal currents, density stratification, and the earth rotation, this study investigates the impacts of subtidal motions and the earth rotation on the modal characteristics of the semidiurnal internal tide (SIT) based on long-term mooring measurements in the northern South China Sea (SCS). It is shown that the modal characteristics of the SIT are significantly influenced by the time-varying subtidal current and density stratification associated with energetic subtidal motions in the northern SCS. The earth rotation plays a minor role in modulating the modal characteristics of the SIT in the northern SCS, but it becomes effective at middle and high latitudes when strong subtidal current shear associated with subtidal motions is present. Moreover, the strong subtidal current associated with subtidal motions may significantly affect the critical latitude of the SIT. The observational results reported here will help to improve our understanding of the modal characteristics of internal tides under the influence of subtidal motions in global oceans.
机译：潮汐运动，例如大规模的环流和中尺度涡旋，经常占据着海洋内部波的传播路径。通过用潮汐流，密度分层和地球自转求解改进的Taylor-Goldstein方程，本研究研究了基于长期系泊的潮下运动和地球自转对半日内潮（SIT）模态特征的影响南海北部（SCS）的测量。结果表明，北半球南海北部高强度潮汐运动伴随着时变的潮汐流和密度分层，极大地影响了SIT的模态特征。地球自转在调节北部SCS的SIT的模态特征方面起着较小的作用，但是当存在与潮汐运动相关的强大的潮汐流剪切力时，地球旋转在中高纬度地区变得有效。此外，与潮汐运动相关的强大的潮汐流可能会严重影响SIT的临界纬度。此处报告的观测结果将有助于增进我们对全球海洋潮下运动影响下的内潮模式特征的了解。

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