| 南极臭氧洞期间中山站和昭和站大气臭氧的中期振荡特征 |
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| 引用本文： | 陆龙骅,周秀骥,卞林根,张正秋,郑向东.南极臭氧洞期间中山站和昭和站大气臭氧的中期振荡特征[J].极地研究,1996,8(3):23-31. |
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| 作者姓名： | 陆龙骅 周秀骥 卞林根 张正秋 郑向东 |
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| 作者单位： | 中国气象科学研究院 |
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| 基金项目： | 国家“八五”科技攻关课题资助 |
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| 摘 要： | 本文用１９９３和１９９４年７～１２月中山站及昭和站大气臭氧观测资料和１９９３年７～１２月中山站地面温度、气压及戴维斯站探空资料，对南极臭氧洞期间中山站和昭和站的中期振荡特征进行了研究。结果表明：准一周和准二周振荡是南极地区大气臭氧和各层次温压参数普遍存在的两种主振荡周期，且在不同年份其振荡强度也有所不同。在中山站和昭和站地区，１９９３年大气各参数的准二周振荡强度大于准一周振荡，准一周和准二周振荡都是由西向东传播的；而在１９９４年则除准一周振荡外未出现准二周振荡。在普里兹湾地区平流层中下部臭氧和等压面高度、温度准一周和准二周振荡的位相差很小，振荡是同时发生的。准一周和准二周振荡都可以由上而下或由下而上地穿越对流层顶，平流层和对流层的中期振荡有着密切的关系。准二周振荡是大气中普遍存在的一种天气尺度的中期振荡，在不同地区可以对应不同的天气实体。在南极地区，大气臭氧总量的准二周振荡可能是极涡本身固有振荡的反映，而周期较短的准一周振荡则可能是外来扰动强迫振荡的反映。
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| 关 键 词： | 南极 中山站 昭和站 臭氧洞 中期振荡 |
MEDIUM RANGE OSCILLATION CHARACTERISTICS OF OZONE AT ZHONGSHAN AND SYOWA STATIONS DURING THE ANTARCTIC OZONE HOLE PERIOD |
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| Lu Longhua,Zhou Xiuji,Bian Lingen,Zhang Zhengqiu and Zheng Xiangdong.MEDIUM RANGE OSCILLATION CHARACTERISTICS OF OZONE AT ZHONGSHAN AND SYOWA STATIONS DURING THE ANTARCTIC OZONE HOLE PERIOD[J].Chinese Journal of Polar Research,1996,8(3):23-31. |
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| Authors: | Lu Longhua Zhou Xiuji Bian Lingen Zhang Zhengqiu and Zheng Xiangdong |
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| Abstract: | In this paper a study has been made on medium range oscillation characteristics at Zhongshan and Syowa stations during Antarctic ozone hole period with the data of atmospheric ozone observed at Zhongshan and Syowa stations in Jul.-Dec.of 1993 and 1994 and with the data of surface temperature and pressure at Zhongshan and radiosound at Davis Station in Jul.-Dec.of 1993.The results show that: 1.Quasi one and two week oscillations are the two main ones commonly existed for Antarctic ozone and temperature and pressure at each level,with different strength in different years.In Zhongshan and Syowa region,the quasi two week oscillation was stronger than the quasi one week oscillation for each atmospheric element in 1993, but in 1994 there occurred only the quasi one week oscillation and no quasi two week oscillation. 2.In Zhongshan Syowa region the quasi one and two week oscillations are propagated from west to east,where the propagating speed for the quasi one week oscillation is about 17 longitudinal degree/day. 3.In Prydz Bay region at middle low stratosphere, the phase difference between the quasi one and two week oscillations for ozone, isobaric height and temperature is very small,the oscillations almost occurring at the same time.The quasi one and two week oscillations can propagate upward and downward through the top of troposphere,and there are close relations between the medium oscillations in troposphere and stratosphere. 4.Quasi two week oscillation is one kind of common medium oscillation with weather scales,confirming to different synoptic system for different regions.In Antarctic region the quasi two week oscillation for total ozone probably reflects the inherent oscillation of polar vortex,and the short period of the quasi one week oscillation could display the oscillation resulting from outside disturbance forcing. |
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| Keywords: | s Antarctica Zhongshan Station Syowa Station ozone hole medium range oscillation |
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