Urban heat islands and summertime convective thunderstorms in Atlanta: three case studies

被引：431

作者：

Bornstein, R ^{[1
]}

Lin, QL ^{[1
]}

机构：

[1] San Jose State Univ, Dept Meteorol, San Jose, CA 95192 USA

来源：

ATMOSPHERIC ENVIRONMENT | 2000年 / 34卷 / 03期

关键词：

urban precipitation; urban heat islands; urban convergence zones;

D O I：

10.1016/S1352-2310(99)00374-X

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Data from both 27 sites in the Atlanta mesonet surface meteorological network and eight National Weather Service sites were analyzed for the period from 26 July to 3 August 1996. Analysis of the six precipitation events over the city during the period (each on a different day) showed that its urban heat island (UHI) induced a convergence zone that initiated three of the storms at different times of the day, i.e., 0630, 0845, and 1445 EDT. Previous analysis has shown that New York City (NYC) effects summer daytime thunderstorm formation and/or movement. That study found that during nearly calm regional how conditions, the NYC UHI initiates convective activity. Moving thunderstorms, however, tended to bifurcate and to move around the city, due to its building barrier effect. The current Atlanta results thus agree with the NYC results with respect to thunderstorm initiation. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：507 / 516

页数：10