北极臭氧损耗对初春东亚中高纬地区地面气温影响的观测分析  

Observation Analysis on Impact of Arctic Ozone Depletion on Surface Air Temperature in Middle and High Latitudes of East Asia during Springtime

作　　者：石柳[1] 郑明华[1] 付遵涛[1] 

机构地区：[1]北京大学物理学院大气与海洋科学系气候与海-气实验室,北京100871

出　　处：《高原气象》2011年第6期1566-1572,共7页Plateau Meteorology

基　　金：国家自然科学基金重点项目(40533016);国家重点基础研究发展规划(973)项目(2010CB428606)共同资助

摘　　要：利用1948—2007年NCEP/NCAR月平均2m地面气温再分析资料、3月北极涛动(AO)指数和春季臭氧含量资料,采用合成分析方法分析了北极臭氧损耗对初春东亚中高纬地区地面气温的影响。结果表明,臭氧低(高)值年,3月东亚中高纬地区地面气温存在正(负)异常。4月的与3月类似,但气温异常的幅度减小,中心位置也有所变化。对比分析表明,1979年以后的AO正位相和臭氧损耗对3月东亚地面气温的影响类似,但在影响范围和中心位置上有所不同。在AO位相不明显的年份,臭氧损耗年3月东亚地区地面气温的异常依然显著。臭氧作为一个外界强迫因子,对北半球大气温度有显著的影响,可能首先影响极地气温并最终通过空间上的自相关影响中高纬度的地面气温变化。Using the composited analysis method,the impact of Arctic ozone depletion on surface air temperature in middle and high latitudes of the East Asia during springtime is studied.It is found that,in the low（high） ozone years,the positive（negative） temperature anomaly occur in middle and high latitudes of East Asia in March.Similar to March,the anomaly still exist in April,but with small amplitude and shrinked range.Comparing with these results,the composition of the years of lower and higher AO indexes appear to be similar on amplitude,its center location is different.In the weaker years from the AO phase,those anomalies are still significant.So ozone as an eternal forcing,it has a significant impact on the temperature of Northern Hemisphere,it might first effects on the Arctic region,and then effects the region of middle and high latitudes by self-correlation in space.

关 键 词：北极臭氧损耗 北极涛动 地面气温 

分 类 号：P468.021[天文地球—大气科学及气象学]