珠江三角洲大气边界层特征及其概念模型  

Atmospheric boundary layer features of Pearl River Delta and its conception model

作　　者：范绍佳[1] 王安宇[1] 樊琦[1] 刘吉[1] 王宝民[1] 

机构地区：[1]中山大学大气科学系,广东广州510275

出　　处：《中国环境科学》2006年第B07期4-6,共3页China Environmental Science

基　　金：国家"973"项目(2002CB410801)

摘　　要：根据珠江三角洲地理环境、气候背景和边界层气象特征的分析,建立了珠江三角洲大气边界层概念模型.模拟结果表明,珠江三角洲大气边界层主要受来自南海暖湿气流和来自北方跨越南岭干冷气流相对强弱以及珠江三角洲上空下沉气流的控制.此外,当大范围系统风较弱时,珠江三角洲大气边界层还受局地海陆风、城市热岛环流和山谷风的共同影响.Based on the analysis of geographical environment, climate background and the meteorological features of boundary layer, the atmospheric boundary layer conception model of Pearl River Delta was built. The atmospheric boundary layer of Pearl River Delta was controlled mainly by the relative intensity between the warm and wet air flow from the South China Sea and the cold and dry air flow from north across the Nanling Mountain, and also by the subsidence air flow over Pearl River Delta. Moreover, when the wind of large range system was weak relatively, atmospheric boundary layer of Pearl River Delta was also controlled by the combined influence of the sea-land breeze, urban heat island circulation and the mountain-valley wind.

关 键 词：大气边界层 概念模型 珠江三角洲 

分 类 号：X16[环境科学与工程—环境科学] P404[天文地球—大气科学及气象学]