中国北方地区寒潮活动对对流层大气臭氧时空分布的影响研究  

A study on the influences of the cold wave activity on the temporal-spatial distribution of tropospheric O_3 over the Northern China

作　　者：郭世昌[1] 宋哲[1] 黎成超[1] 汪明圣[1] 黎海凤[1] 侯开[1] 李豪杰[1] 

机构地区：[1]云南大学大气科学系,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2013年第6期773-781,共9页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家重点基础研究发展计划资助项目(2010CB428605);云南省应用基础研究计划(重点)项目(2011FA031);国家自然科学基金(41275072)

摘　　要：基于2005-2009年期间NCEP／NCAR再分析逐日温度分层资料和ECMWF提供的臭氧质量分数分层资料、2006年逐日位势高度资料，研究了寒潮发生过程对中国北方地区对流层臭氧分布的影响．其结果显示，寒潮过程中冷空气从70。N以北的源地把含有臭氧的气团沿着寒潮路径向南输送，随着寒潮的爆发，大气运动的动力输送作用将会影响我国北方高空的臭氧分布，导致对流层250hPa上的臭氧质量分数增加而700hPa臭氧质量分数降低，影响的时间长度为I～4d．同时发现，寒潮发生的季节和强度不同，对臭氧分布的影响也有所不同．Based on the NCEP/NCAR reanalyzed data of ozone mass mixing ratio and temperature data dur ing 2005-2009 and ECMWF Geopotential Height in 2006, the influences of the cold wave activity on the tropo spheric 03 over the Northern China have been studied in this paper. Firstly＇ the results show that , in upper trop osphere, the high - concentration ozone air located in high latitude will be carried to the Northern China along the cold wave path;and in the middle -lower troposphere, the low -concentration ozone air will arrive to Northern China regions. Thus the cold wave activity will affect the ozone distribution of Northern China. Secondly, the cold wave can lead to ozone increase at 250hPa and decrease at 700 hPa,and the influence time is 1-4 d. Thirdly, with the differences of the seasons and intensity of the cold wave, the influences of the cold wave activity on the o zone distribution vary.

关 键 词：臭氧质量分数 寒潮 对流层 中国北方 HYSPLIT后向轨迹分析 

分 类 号：P421.3[天文地球—大气科学及气象学]