Troposphere-Stratosphere Coupling Processes

对流层平流层耦合过程

• 批准号: 9322480
• 负责人: James Holton
• 金额: $ 60.39万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-15 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9322480&HistoricalAwards=false
• 关键词: Troposphere; Stratosphere; Coupling; Processes

9322480 Holton The objective of this research is the transfer of momentum, energy, water substance and other trace constituents between the troposphere and stratosphere by means of gravity waves and the mass circulation. Both processes will be investigated using selected numerical models of convection and general circulation, whose formulation will be guided by existing observations, including those of 50 MHz radars. In particular, a nonlinear model of the zonally symmetric mass circulation will be utilized to determine whether the mass transport into the tropical stratosphere is a consequence of remote effects initiated in higher latitudes or partially the effect of gravity wave drag arising from local convection or the subtropical jet stream. Most of the simulations will be accomplished using a two dimensional model, thought a few three dimensional simulations will be used to evaluate the merit of the former model.

9322480霍尔顿这项研究的目标是通过重力波和质量环流在对流层和平流层之间传递动量、能量、水物质和其他痕量成分。将使用选定的对流和大气环流数值模式来研究这两个过程，这些模式的制定将以现有观测为指导，包括50兆赫雷达的观测。特别是，将利用纬向对称质量环流的非线性模式来确定进入热带平流层的质量输送是高纬度启动的远程效应的结果，还是局部对流或副热带急流引起的重力波阻力的影响的结果。大多数模拟将使用二维模型完成，尽管一些三维模拟将用于评估前一个模型的优点。