大气科学Issue(6)：1136-1148,13.DOI:10.3878/j.issn.1006-9895.1502.14263
大气能量学揭示的高原低涡个例结构及降水特征
The Structure and Precipitation Characteristics of Typical Tibetan Plateau Vortices as Revealed by Energy Analysis
摘要
Abstract
A precipitation case caused by the Tibetan Plateau Vortex (TPV) process that occurred during 21–25 July 2010 is investigated by means of energy analysis. This paper focuses on the characteristics of distribution and the reasons for the changes of apparent energy, latent energy, and Convective Available Potential Energy (CAPE) during the TPV’s different development periods. The main results are as follows:(1) Apparent energy is responsible for the changes of total energy at the beginning, while latent energy is the main reason in the later development period;(2) The spiral structure of latent energy in the mature stage of the TPV is very clear, which can indicate the degree of development of the TPV;(3) Normalizing the CAPE values by the depth over which the integration takes place provides an index (NCAPE) that presents a clear hollow structure during the TPV’s strong period;(4) Precipitation related to the TPV is mainly distributed in the southeast or south of the vortex center, which has a close relationship with the TPV’s circulation and energy distribution characteristics.关键词
高原低涡/能量分析/降水分布/螺旋带/空心结构Key words
Tibetan Plateau vortex/Energy analysis/Precipitation distribution/Spiral band/Hollow structure分类
天文与地球科学引用本文复制引用
董元昌,李国平..大气能量学揭示的高原低涡个例结构及降水特征[J].大气科学,2015,(6):1136-1148,13.基金项目
国家自然科学基金项目91337215、41175045，国家重点基础研究发展计划（973计划）项目2012CB417202，公益性行业（气象）科研专项项目GYHY201206042 （）
