The influence of rotational frontogenesis and its associated shearwise vertical motions on the development of an upper‐level front
The influence of rotational frontogenesis and its associated shearwise vertical motions on the development of an upper‐level front
复制标题
旋转锋生及其相关的剪切垂直运动对高层锋发展的影响
DOI：
10.1002/qj.551
复制
发表时间：
2010
影响因子：
8.9
通讯作者：
Jonathan E. Martin
中科院分区：
文献类型：
--
作者：
Andrea A. Lang;Jonathan E. Martin
将总的准地转垂直运动划分为平行于地转垂直切变和沿地转垂直切变定向的横向和切变对联，以考察旋转锋生及其伴随的切变环流在西北气流高空锋区/急流系统生命周期中的作用。分析特别强调了这一作用的两个方面：(1)切变ω对标量锋生的影响；(2)旋转锋生及其伴生的垂直环流对高空锋生期间顺流冷空气平流启动的影响。
The total quasi‐geostrophic (QG) vertical motion is partitioned into transverse and shearwise couplets oriented parallel to, and along, the geostrophic vertical shear, respectively, in order to examine the role of rotational frontogenesis, and its associated shearwise circulation, in the life cycle of an upper‐front/jet system in northwesterly flow. In particular the analysis emphasizes two aspects of that role: (1) the influence of shearwise ω on scalar frontogenesis, and (2) the effect of rotational frontogenesis, and its associated vertical circulation, on the initiation of along‐flow cold air advection during upper frontogenesis.