The Evolution of Morning Convective Systems over the U.S. Great Plains during the Warm Season. Part II: A Climatology and the Influence of Environmental Factors
The Evolution of Morning Convective Systems over the U.S. Great Plains during the Warm Season. Part II: A Climatology and the Influence of Environmental Factors
复制标题
暖季期间美国大平原早晨对流系统的演变。
DOI：
10.1175/2007mwr2016.1
复制
发表时间：
2008
影响因子：
3.2
通讯作者：
F. Carr
中科院分区：
文献类型：
--
作者：
C. Hane;J. Haynes;D. Andra;F. Carr
摘要中尺度对流系统影响美国南部平原在温暖的季节在上午晚些时候的有限区域内进行了调查。一项为期5年的气候研究记录了145个系统的初始位置和时间、路径、相关的恶劣天气以及与天气特征的关系。还评估了上午晚些时候每种情况下的系统演变。对于48个系统的子集，从快速更新周期（RUC）模式分析的基本变量的垂直配置文件被用来表征每个系统的环境。散点图和判别分析被用来评估哪些环境变量是最有前途的，以帮助确定两个类的进化特征，每个系统将遵循。
Abstract Mesoscale convective systems that affect a limited area within the southern plains of the United States during late morning hours during the warm season are investigated. A climatological study over a 5-yr period documents the initiation locations and times, tracks, associated severe weather, and relation to synoptic features over the lifetimes of 145 systems. An assessment is also made of system evolution in each case during the late morning. For a subset of 48 systems, vertical profiles of basic variables from Rapid Update Cycle (RUC) model analyses are used to characterize the environment of each system. Scatter diagrams and discriminant analyses are used to assess which environmental variables are most promising in helping to determine which of two classes of evolutionary character each system will follow.