Mechanism of formation of the ozone valley over the Tibetan plateau in summer-transport and chemical process of ozone

被引:41
|
作者
Liu, Y [1 ]
Li, WL
Zhou, XJ
He, JH
机构
[1] Nanjing Inst Meteorol, Nanjing 210044, Peoples R China
[2] Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China
关键词
Tibetan Plateau; ozone valley; dynamic transport process; chemical process;
D O I
10.1007/BF03342054
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
With the 3D chemical transport model OSLO CTM2, the valley of total column ozone over the Tibetan Plateau in summer is reproduced. The results show that when the ozone valley occurs and develops, the transport process plays the main part in the ozone reduction, but the chemical process partly compensates for the transport process. In the dynamic transport process of ozone, the horizontal transport process plays the main part in the ozone reduction in May, but brings about the ozone increase in June and July. The vertical advective process gradually takes the main role in the ozone reduction in June and July. The effect of convective activities rises gradually so that this effect cannot be overlooked in July, as its magnitude is comparable to that of the net changes. The effect of the gaseous chemical process brings about ozone increases which are more than the net changes sometimes, so the chemical effect is also important.
引用
收藏
页码:103 / 109
页数:7
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