• 关键词：云模式  化学模式  数植模拟  云和雨的酸化·大气污染物的净化

• 基金项目：

• 徐家骝
• 上海城市建设学院环境工程系

• 周斌斌
• 上海城市建设学院环境工程系

• 莫天麟
• 南京大学大气科学系

• 摘要：将一组化学模式和二维时变云模式相结合,研究了随同云和雨的发展,云水和雨水中pH值和[SO₄^2-]的演变情况以及SO₂, NH₃, 尘, O₃和H₂O₂等大气污染物的净化过程.

• Abstract：A chemical cumulus model was developed to study the evolutions of cloud and rain, pH value and sulfate concentrations of cloud and rain, as well as the scavenging of SO₂, NH₃, dust, O₃ and H₂O₂, coupled with a two-dimensional,time dependent cloud model. With the growth of the cloud, the acidities of the cloud water and the rain water increase Ammonia greatly affects the pH values of the cloud and the rain water. Scavenging of SO₂, NH₃, dust, O₃ and H₂O₂ by cloud and rain is evident.

• Key words：cloud model  chemical model  acidification  scavenging

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