中国西南上空大气臭氧垂直分布的结构特征  

A structural measurement of ozone vertical distribution in spring over Kunming

作　　者：王卫国[1] 罗燕[1] 陈鲁言[2] 陈尊裕[2] 吴涧[1] 陈新梅[1] 

机构地区：[1]云南大学大气科学系,云南昆明650091 [2]香港理工大学土木工程学系

出　　处：《云南大学学报（自然科学版）》2004年第4期315-319,共5页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(40165001;40205016);云南省自然科学基金资助项目(2003D0011M).

摘　　要：用球载电化学臭氧探空仪于2001年春季在中国西南昆明上空测得臭氧垂直分布的精细结构,结果表明臭氧垂直廓线具有多层次特征.在21～30km高度之间是臭氧分压多峰值的极大值层,极大值平均为15.13mPa,臭氧混合比极大值平均高度在30.2km.对流层顶附近臭氧分压存在极小值,且有南风分量的极大风层对应.对流层上层和平流层低层出现臭氧峰值时,其峰值层附近具有显著的冷平流特征.在5km以下观测到了不稳定的对流层臭氧高浓度峰值层.Balloon-borne electrochemical ozone-sonde is first used in detection of precise and fine ozone vertical distribution above Kunming area,located in the low latitude plateau of southwest China during the period of 28 February through 13 April,2001.The results show that ozone vertical profiles present the multi-layer pattern.The layer of the peak value of multimodes of ozone partial pressure is located in 21—30?km.In this layer,averaged maximum is 15.13?mPa .At 30.2?km the ozone mixing ratio has the maximum.The minimum of ozone partial pressure near tropopause corresponds to the peak wind layer with south component.When the ozone peak value emerges in upper troposphere,there is significant cold advection close to the layer of peak value.An unstable high concentration peak layer of troposphere ozone is detected under 5?km.

关 键 词：中国 西南地区 臭氧探空仪 臭氧分压 混合比 垂直廓线 

分 类 号：P421.33[天文地球—大气科学及气象学]