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气象:2010,36(4):126-131
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冬季乌鲁木齐市低层大气O3垂直分布观测的个例分析
(中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐 830002)
A Case Analysis on Lower Atmospheric Ozone Vertical Profiles Observed in Winter over Urumqi Urban Area
(Istitute of Desert and Meteorology, China Meteorological Administration, Urumqi 830002)
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投稿时间:2008-12-01    修订日期:2009-12-20
中文摘要: 为了揭示乌鲁木齐冬季边界层O3垂直分布特征,利用系留气艇于2008年1月11—13日在乌鲁木齐市区进行了边界层O3观测试验。利用本次观测试验的数据并结合相关气象资料,对观测期间边界层O3的垂直分布特征及其影响因子进行了分析。结果表明:白天近地面500~800 m高度以下O3浓度较低,该高度以上存在O3高浓度分布区,夜间整个观测高度范围内O3浓度均较低;O3浓度分布与太阳辐射、温度层结、风、相对湿度等因子密切相关,O3高浓度分布区出现在逆温层底以上,且O3浓度与相对湿度呈显著的反相关分布;近地面的NOx对O3浓度有着重要影响。由此表明乌鲁木齐冬季低层大气O3的分布在各种因素的影响下具有明显的时空变化。
Abstract:In order to reveal the characteristics of the boundary layer ozone vertical profiles in winter in Urumqi, the observation experiment with tethered balloon has been carried out from 11 to 13 January 2008. Based on the observation experiment data and some related data, the vertical distribution characters of ozone concentration and the relationship with meteorological factors were studied. The results showed that: The ozone concentration is lower below 500-800 m during the daytime and the distribution area of high concentration ozone appears over this height. However, the ozone concentration is lower in the range of whole observed height at night. There existed a close relationship between the ozone concentration and the meteorological factors including solar radiation, temperature stratification, wind and relative humidity.The distribution area of high concentration ozone exsits over the inversion base, and there is a significant inverse correlation between the ozone concentration and the relative humidity. The nitrogen oxides in the near surface has an important influence on ozone concentration. The above facts obtained indicate that the ozone in the lower troposphere has significant temporal and spatial variations in winter in Urumqi, which results from the joint effects of various factors.
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基金项目:公益性行业(气象)科研专项(GYHY(QX)2007 6 8);国家自然科学基金项目(40775019);新疆维吾尔自治区科技攻关项目(200833119);中央级公益性科研院所科研业务费专项资金项目(IDM200602);新疆气象局项目(C2008002)共同资助
引用文本:
何清,杨兴华,梁云,霍文,艾力·买买提明,刘强,2010.冬季乌鲁木齐市低层大气O3垂直分布观测的个例分析[J].气象,36(4):126-131.
HE Qing,YANG Xinghua,LIANG Yun,HUO Wen,Aili MAIMAITIMING,LIU Qiang,2010.A Case Analysis on Lower Atmospheric Ozone Vertical Profiles Observed in Winter over Urumqi Urban Area[J].Meteor Mon,36(4):126-131.