近50a平流层强爆发性增温事件及其变化规律分析
投稿时间:2004-01-14  修订日期:2004-05-24  点此下载全文
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作者单位
盛日锋 南京信息工程大学, 大气科学系, 江苏, 南京, 210044 
王盘兴 南京信息工程大学, 大气科学系, 江苏, 南京, 210044 
闵凡花 南京信息工程大学, 大气科学系, 江苏, 南京, 210044 
基金项目:国家自然科学基金重点资助项目(402333037)
中文摘要:按WMO提供的标准,提出了划分强爆发性增温(Sudden Stratospheric War ming,简称SSW)事件的指标,用NCEP/NCAR30hPa层逐日温度、高度资料,确定了1950—2002年1—3月期间的35次强SSW事件。在此基础上,给出了强SSW事件发生的气候及异常特征,并从北半球中高纬臭氧及日照年际变化及其年际异常出发,给出了这些特征的部分成因。
中文关键词:平流层  强爆发性增温  大气臭氧
 
Analysis of Strong SSW Events and Its Variation Rule in the Past Fifty Years
Abstract:Two indices for strong SSW events are put forward in this paper,according to the WMO standards.Using the NCEP/NCAR reananysis daily temperature and height data at 30hPa level,35 strong SSW events during January to March from 1950 to 2002 are determined.The climate and its anomalous features of SSW events are given,and their formation mechanism is partly explained by the interannual change and abnormality of sunshine and ozone distribution in the mid-high latitudes in the Northern Hemisphere.
keywords:stratosphere  strong Sudden Stratospheric Warming  atmospheric ozone
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