摘要
利用包括垂直平流、扩散和化学过程的一维平流层—对流层的大气化学模式,通过增加NO_x 的地面源,发现由于 NO_x 地面源的增强,引起对流层下部臭氧浓度增加,夏季臭氧浓度的增加远大于冬季;通过扩散系数和垂直风速的敏感性试验比较,看出由平流层向对流层输送臭氧的过程中,平流过程的影响可能更重要。
By using one-dimensional atmospheric chemistry model for stratosphere and troposphere,with including the vertical advection,diffusion and chemical processes,the vertical distribution ofozone is studied.It is found that the increase of ozone concentration in lower troposphere is due toincrease of surface source of NO_x,and its increase in the summer is larger than that in the winter.By comparison the sensitive experiments of diffusive coefficient with vertical wind,it is indicatedthat the effects of advective process in the ozone transfer from stratosphere toward tropospheremay be more important.
出处
《应用气象学报》
CSCD
北大核心
1993年第1期45-51,共7页
Journal of Applied Meteorological Science
关键词
臭氧
光化学
分布
模拟
大气
Ozone
Photochemistry
Distribution
Simulation
