对流层臭氧的数值模拟试验

建立一个一维大气化学模式、利用该模式模拟O3等微量气体的日变化和O3的一些敏感性试验。结果表明:CH4和CO的增加会使O3增加，水汽增加将使O3减少；温度升高使自由大气中O3减少，而使边界层中O3增加；太阳辐射的加强使自由大气中的O3减少，边界层中O3增加。最后，研究了边界层结构对大气微量气体分布的影响。结果表明，模拟低层大气微量气体的变化需要考虑边界层结构的影响。

Numerical Simulation for Tropospheric Ozone

An one-dimensional atmopheric chemical model is developed. Using the model, diurnal variations of ozone and other trace gases have been simulated, and several sensitive experiments have been made. The results show that increments of CH4 or CO cause O3 to increase and increment of water vapour causes O3 to decrease; in the free atmosphere O3 decreases with a rise in temperature, but in the boundary layer O3 increases; when solar radiation enhances, O3 decreases in the free atmosphere, but in the boundary layer O3 increases. In addition, the influence of the boundary layer on the distribution of trace gases is studied. It is found that the effect of the boundary layer has to be considered in the simulations for the variation of trace gases in the lower atmosphere