• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physical Oceanography >A Thermohaline Inverse Method for Estimating Diathermohaline Circulation and Mixing
【24h】

A Thermohaline Inverse Method for Estimating Diathermohaline Circulation and Mixing

机译：估计透热卤水循环和混合的热盐逆方法

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

The thermohaline inverse method (THIM) is presented that provides estimates of the diathermohaline streamfunction Psi(dia)(SA Theta), the downgradient along-isopycnal diffusion coefficient K, and the isotropic downgradient turbulent diffusion coefficient D of small-scale mixing processes. This is accomplished by using the water mass transformation framework in two tracer dimensions: here in Absolute Salinity S-A and Conservative Temperature Theta coordinates. The authors show that a diathermal volume transport down a Conservative Temperature gradient is related to surface heating and cooling and mixing, and a diahaline volume transport down an Absolute Salinity gradient is related to surface freshwater fluxes and mixing. Both the diahaline and diathermal flows can be calculated using readily observed parameters that are used to produce climatologies, surface flux products, and mixing parameterizations for K and D. Conservation statements for volume, salt, and heat in (S-A, Theta) coordinates, using the diahaline and diathermal volume transport expressed as surface freshwater and heat fluxes and mixing, allow for the formulation of a system of equations that is solved by an inverse method that can estimate the unknown diathermohaline streamfunction Psi(dia)(SA Theta) and the diffusion coefficients K and D. The inverse solution provides an accurate estimate of Psi(dia)(SA Theta) K, and D when tested against a numerical climate model for which all these parameters are known.
机译：提出了热卤代烃逆方法（THIM），该方法可估算小规模混合过程中的透热卤素流函数Psi（dia）（SA Theta），下梯度等向扩散系数K和各向同性下等湍流扩散系数D。这是通过使用二维示踪剂中的水质转化框架来实现的：此处为绝对盐度S-A和保守温度Theta坐标。作者表明，沿保守温度梯度下降的透热量与地表加热，冷却和混合有关，而沿绝对盐度梯度下降的二叠氮盐量与地表淡水通量和混合有关。可以使用容易观察到的参数（用于产生气候，表面通量乘积以及K和D的混合参数化）来计算透盐流量和透热流量。使用（SA，Theta）坐标中的体积，盐和热量守恒语句，使用表示为表面淡水和热通量并混合的透盐和透热量输运，允许制定方程组，该方程组可以通过逆方法求解，该方法可以估算未知的透热盐流函数Psi（dia）（SA Theta）和扩散当针对已知所有这些参数的数值气候模型进行测试时，逆解可提供Psi（dia）（SA Theta）K和D的准确估计。

著录项

  • 来源
    《Journal of Physical Oceanography》 |2014年第10期|2681-2697|共17页
  • 作者

    Groeskamp Sjoerd; Zika Jan D.; Sloyan Bernadette M.; McDougall Trevor J.; McIntosh Peter C.;

  • 作者单位

    CSIRO Wealth Oceans Natl Res Flagship, Hobart, Tas 7000, Australia|Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas, Australia;

    Univ Southampton, Natl Oceanog Ctr, Southampton, Hants, England;

    CSIRO Wealth Oceans Natl Res Flagship, Hobart, Tas 7000, Australia|CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas, Australia;

    Univ New S Wales, Sch Math & Stat, Sydney, NSW, Australia;

    CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas, Australia;

  • 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