A Spectral Parameterization of Drag, Eddy Diffusion, and Wave Heating for a Three-Dimensional Flow Induced by Breaking Gravity Waves
A Spectral Parameterization of Drag, Eddy Diffusion, and Wave Heating for a Three-Dimensional Flow Induced by Breaking Gravity Waves
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破碎重力波引起的三维流动的阻力、涡流扩散和波热的谱参数化
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
L. Coy
中科院分区：
文献类型：
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作者：
Xun Zhu;J. Yee;W. Swartz;E. Talaat;L. Coy
向上传播的重力波通过三个不同的过程影响中层大气的大尺度动力学和能量：(I)通过波在三维传播的非定域动量输送，将大气动量在纬向和经向的远程重新分配到波消散区；(Ii)由于波破裂引起的混合引起的动量、热量和示踪物的局域扩散输送；以及(Iii)由于耗散在有限区域内重新分配热能而引起的扰动波结构的定域热量输送。当动量阻力、涡流扩散和波浪加热--“破裂三位一体”--都施加在背景状态上时，这些效应对于破碎波变得最为显著。本文提出了一种在大型数值模式中自洽地包含破缺三位一体的三维参数化方案。提出了基于广义关系的三维参数化方案。
Abstract There are three distinct processes by which upward-propagating gravity waves influence the large-scale dynamics and energetics of the middle atmosphere: (i) nonlocalized transport of momentum through wave propagation in three dimensions that remotely redistributes atmospheric momentum in both zonal and meridional directions from wave generation to wave dissipation regions; (ii) localized diffusive transport of momentum, heat, and tracers due to mixing induced by wave breaking; and (iii) localized transport of heat by perturbing wave structures due to dissipation that redistributes the thermal energy within a finite domain. These effects become most significant for breaking waves when momentum drag, eddy diffusion, and wave heating— the “breaking trinity”—are all imposed on the background state. This paper develops a 3D parameterization scheme that self-consistently includes the breaking trinity in large-scale numerical models. The 3D parameterization scheme is developed based on the general relat...