| 平流层爆发性增温过程中臭氧的垂直分布特征 |
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| 引用本文： | 邓淑梅,陈月娟,罗涛,等.平流层爆发性增温过程中臭氧的垂直分布特征[J].大气科学,2009,33(3):459-467. |
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| 作者姓名： | 邓淑梅 陈月娟 罗涛 等 |
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| 作者单位： | 1.中国科学技术大学地球与空间科学学院, 合肥,230026;安徽省气象科学研究所, 安徽省大气科学与卫星遥感重点实验室, 合肥,230031 |
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| 基金项目： | 国家自然科学基金资助项目40633015、 40505008、 40805024 |
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| 摘 要： | 利用ECMWF资料分析了平流层爆发性增温 (SSW) 过程中臭氧体积混合比的垂直分布的变化, 结果表明: 平流层爆发性增温过程中臭氧体积混合比增大, 而其极大值大多数形成在增温盛期。同时臭氧体积混合比的高值区在爆发性增温过程中随高度发生一定的变化, 据此对其变化分为两类: (1) 下传型: 在增温初期臭氧体积混合的高值区随高度下传至一定高度, 在增温盛期形成极大值然后随高度抬升到大致增温前的高度。 (2) 增厚型: 在增温过程中臭氧体积混合比的高值区厚度增加, 同时附近区域的臭氧体积混合比也增大, 而且在增温前臭氧体积混合比高值区在高度上没有多大变化, 增温开始后有所抬升。平流层爆发性增温过程中臭氧高值区随高度变化的这两种类型, 是由于平流层爆发性增温期间剩余环流对臭氧输送的结果。臭氧变化的下传型是由于在爆发性增温前剩余环流存在着中纬度向极地的明显输送, 并且伴随着极地强烈的下沉运动, 这就使得中纬度输送来的臭氧向下输送, 因此出现了臭氧高值区的下传; 而臭氧变化的增厚型是由于在爆发性增温期间剩余环流不但有中纬度向极地的输送, 而且在极地附近5 hPa高度处出现了上下两支输送气流, 向上的输送气流使中纬度输送来的臭氧向上输送, 而向下的输送气流使中纬度输送来的臭氧向下输送, 进而使增温期间极地附近的臭氧的高值区增厚。同时分析还表明: 平流层爆发性增温过程中中纬度臭氧体积混合比减少。
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| 关 键 词： | 平流层爆发性增温、臭氧、下传型、增厚型 |
The Vertical Distribution Characteristics of Ozone during Stratospheric Sudden Warming |
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| DENG Shumei,CHEN Yuejuan,LUO Tao and et al.The Vertical Distribution Characteristics of Ozone during Stratospheric Sudden Warming[J].Chinese Journal of Atmospheric Sciences,2009,33(3):459-467. |
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| Authors: | DENG Shumei CHEN Yuejuan LUO Tao and |
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| Institution: | 1.School of Earth and Space Sciences, University of Science and Technology of China, Hefei,230026;Anhui Institute of Meteorological Sciences, Anhui Key Laboratory of Atmospheric Sciences and Satellite Remote Sensing, Hefei,2300312.School of Earth and Space Sciences, University of Science and Technology of China, Hefei,230026 |
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| Abstract: | The variation of vertical distribution for ozone during the stratospheric sudden warming(SSW) is analyzed by using ECMWF data.The results reveal that the ozone mixing ratio increases during SSW and its maximum is mostly formed in the middle days of SSW.In the meantime,the high-value areas of ozone mixing ratio changes with height during SSW.So according to this,the variation of ozone mixing ratio with height during SSW is divided into two kinds:(1) Downward propagation: the high-value areas of ozone mixing ... |
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| Keywords: | stratospheric sudden warming ozone downward propagation increasing thickness |
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