...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physical Oceanography >The Impact of Abyssal Mixing Parameterizations in an Ocean General Circulation Model
【24h】

The Impact of Abyssal Mixing Parameterizations in an Ocean General Circulation Model

机译：深海混合参数化对海洋总环流模型的影响

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

A parameterization of vertical diffusivity in ocean general circulation models has been implemented in the ocean model component of the Community Climate System Model (CCSM). The parameterization represents the dynamics of the mixing in the abyssal ocean arising from the breaking of internal waves generated by the tides forcing stratified flow over rough topography. This parameterization is explored over a range of parameters and compared to the more traditional ad hoc specification of the vertical diffusivity.rnDiapycnal mixing in the ocean is thought to be one of the primary controls on the meridional overturning circulation and the poleward heat transport by the ocean. When compared to the traditional approach with uniform mixing, the new mixing parameterization has a noticeable impact on the meridional overturning circulation; while the upper limb of the meridional overturning circulation appears to be only weakly impacted by the transition to the new parameterization, the deep meridional overturning circulation is significantly strengthened by the change. The poleward ocean heat transport does not appear to be strongly affected by the mixing in the abyssal ocean for reasonable parameter ranges. The transport of the Antarctic Circumpolar Current through the Drake Passage is related to the amount of mixing in the deep ocean. The new parameterization is found to be energetically consistent with the known constraints on the ocean energy budget.
机译：海洋总体环流模型中垂直扩散系数的参数化已在社区气候系统模型（CCSM）的海洋模型组件中实现。参数化表示由潮汐产生的内部波浪破裂而引起的深海海洋混合动力，潮汐迫使分层流流过粗糙的地形。该参数化在一系列参数上进行了探索，并与更传统的垂直扩散系数进行了比较。rn海洋中的斜向混合被认为是子午俯仰环流和海洋极向热传输的主要控制之一。 。与传统的均匀混合方法相比，新的混合参数化对子午翻转循环有明显的影响。经向新参数化的过渡似乎对子午倾覆环流的上肢只产生了微弱的影响，而这一变化显着增强了深子午倾覆环流。在合理的参数范围内，极地海洋热传输似乎不受深海海洋混合的强烈影响。南极绕极流通过德雷克海峡的运输与深海中的混合量有关。发现新的参数化在能量上与对海洋能源预算的已知约束一致。

著录项

  • 来源
    《Journal of Physical Oceanography》 |2009年第7期|1756-1775|共20页
  • 作者

    Steven R. Jayne;

  • 作者单位

    Physical Oceanography Department, Woods Hole Oceanographic Institution, MS 21, 360 Woods Hole Road, Woods Hole, MA 02543-1541;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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