【摘要】 利用一个冰雹云模式与云化学输送模块耦合而成的三维对流云化学／输送模式， 研究对流云对重要的大气污染物臭氧 （Ｏ３）、氮氧化物 （ＮＯｘ， 包括ＮＯ 和ＮＯ２） 的输送作用。模式较好地体现了一个单体积云的发展过程及其特征。云化学／输送模式的结果表明， 云内强烈的垂直输送能在３０ ｍ ｉｎ 左右， 把低层低体积分数的Ｏ３和高体积分数的ＮＯ２快速、有效地输送到对流层的上部， 造成化学物种的再分布。而在云顶附近， 由于对流穿透了对流层的顶部，造成了上层高体积分数Ｏ３的向下侵入，说明云的对流活动除了能把边界层内的污染物向上输送， 其夹卷作用还可以造成平流层和对流层化学物质的交换。更多还原

【Abstract】 A three-dimensional model of hailstorms coupled with chemistry transport module was used to study the role of deep-convective transport in the redistribution of chemical species of low soluble gases such as O 3 and NO 2 The model simulates the process and character of a single-cell cumulus cloud The results of cloud transport model show that the strong vertical transport in the cloud could bring low O 3 and high NO 2 in the lower troposphere to the upper troposphere rapidly and efficiently, and cause the redistribution of chemical species Near the cloud top, high O 3 of stratosphere intrudes into the troposphere when convection penetrates into the stratosphere It shows that convective activity of cloud could not only transport the pollutants in the boundary layer to the upper level, but turn over the chemical species between the troposphere and the stratosphere for the entrainment of cloud更多还原