摘要
针对第26届大学生运动会将于2011年8月在深圳市举办,利用常规气象观测资料和NCEP再分析资料,分析深圳8月份重度灰霾天气的分布特征、环流形势,以期为大运会期间天气服务保障提供科学依据.结果表明：8月是深圳一年中霾天气相对较少的月份;8月份深圳霾和重度灰霾天气均呈上升趋势;霾天气造成能见度明显下降,重度灰霾日平均能见度仅4 km,08：00～14：00是重度灰霾最容易出现的时段;大运会期间重度灰霾天气影响概率较低,且持续时间低于6 h;深圳8月份重度灰霾天气主要发生在副热带高压控制、热带气旋型两种不同的环流形势下,其中热带气旋型是8月份造成深圳重度灰霾天气的主要形势.
To provide a scientific basis for haze weather service during the 26th World University Summer Games held in Shenzhen in August 2011, the distribution of severe haze weather and circulation in August over Shenzhen were analyzed using routine meteorological data and NCEP reanalysis data. The results suggest that the haze weather was less likely to occur in August of the whole year, but the occurrence of haze or severe haze showed an upward trend. Haze leads to a decrease in visibility which can drop to only 4 km on average during severe haze weather. Severe haze is more likely to occurs from 08am to 02pm. During the Universiade, the occurrence probability of severe haze is low and the duration should be no more than 6h. The severe haze weather in August mainly occurred under subtropical high dominating or tropical cyclone associated situations, in which tropical cyclone related is the major scenario.
出处
《广东气象》
2010年第3期5-8,共4页
Guangdong Meteorology
基金
广东省气象局科技攻关项目(GRM2008B24)
广州区域气象中心科技攻关项目(GRMC2009B01)
关键词
天气学
重度灰霾
天气特征
环流形势
大运会
深圳
synoptic meteorology
severe haze
weather features
circulation situation
Universiade
Shenzhen
