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投稿时间：2006-12-30 修订日期：2007-04-26
投稿时间：2006-12-30 修订日期：2007-04-26
中文摘要: 2006年4月7—10日北京出现空气质量持续重污染，对当地生产和生活带来较大影响。从天气
形势、气象要素、流场、大气稳定度等方面分析了这次重污染的形成及维持原因。结果表明
，此次连续重污染过程是一次沙尘过程先后两次影响北京所造成。第一次为内蒙沙源地沙尘
随西北气流南下影响北京的典型沙尘污染过程；第二次是移至下游的沙尘在“回流”天气形势下
沿偏东风返回北京所造成，较为少见。这次重污染是混合型的，是沙尘和静稳气象条件共同
作用的结果。
Abstract:A heavy pollution occurred in Beijing during 7th-10th April 2006. The
synoptic situation, meteorological element, flow field and atmospheric stability
of the event are analyzed. The results show that the same sand dust affected Be
ijing twice and caused continues heavy weather pollution. For the first time, th
e sand dust of inner Mongolia came down along with the north-west flow and reach
ed Beijing. For the second time, based on “refluence" weather background, along w
ith the easterly wind, the sand dust which had moved to downstream returned Beiji
ng. The heavy weather pollution is a common action result of sand dust and ca
lming weather condition.
keywords: heavy pollution sand dust refluence easterly wind
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引用文本：
郭虎,付宗钰,熊亚军,时少英,2007.北京一次连续重污染过程的气象条件分析[J].气象,33(6):32-36.
Guo Hu,Fu Zongyu,Xiong Yajun,Shi Shaoyin,2007.Analysis of the Weather Conditions for a Case of Heavy Pollution in Beijing[J].Meteor Mon,33(6):32-36.
郭虎,付宗钰,熊亚军,时少英,2007.北京一次连续重污染过程的气象条件分析[J].气象,33(6):32-36.
Guo Hu,Fu Zongyu,Xiong Yajun,Shi Shaoyin,2007.Analysis of the Weather Conditions for a Case of Heavy Pollution in Beijing[J].Meteor Mon,33(6):32-36.