| The Vertical Transport of Air Pollutants by Convective Clouds. Part I: A Non-Reactive Cloud Transport Model |
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| 引用本文： | Kong Fanyou,Qin Yu. The Vertical Transport of Air Pollutants by Convective Clouds. Part I: A Non-Reactive Cloud Transport Model[J]. 大气科学进展, 1993, 10(4): 415-427. DOI: 10.1007/BF02656966 |
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| 作者姓名： | Kong Fanyou Qin Yu |
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| 作者单位： | Department of Geophysics，Peking University，Beijing 100871，Department of Geophysics，Peking University，Beijing 100871 |
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| 摘 要： | A convective cloud transport model, without chemical processes, is developed by joining a set of concentration conservative equations into a two-dimensional, slab-symmetric and fully elastic numerical cloud model, and a numerical experiment is completed to simulate the vertical transport of ground-borne, inert gaseous pollutant by deepthunderstorm. The simulation shows that deep convective storm can very effectively transport high concentrated pollutant gas from PBL upward to the upper troposphere in 30 to 40 minutes, where the pollutant spreads laterally outward with strong anvil outflow, forming an extensive high concentration area. Meanwhile, relatively low concentration areas are formed in PBL both below and beside the cloud, mainly caused by dynamic pumping effect and sub-cloud downdraft flow. About 80% of the pollutant gas transported to the upper troposphere is from the layer below 1.5 km AGL (above ground level).
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| 收稿时间： | 1993-03-01 |
The vertical transport of air pollutants by convective clouds. Part I: A non-reactive cloud transport model |
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| Kong Fanyou,Qin Yu. The vertical transport of air pollutants by convective clouds. Part I: A non-reactive cloud transport model[J]. Advances in Atmospheric Sciences, 1993, 10(4): 415-427. DOI: 10.1007/BF02656966 |
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| Authors: | Kong Fanyou Qin Yu |
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| Affiliation: | Department of Geophysics, Peking University, Beijing 100871,Department of Geophysics, Peking University, Beijing 100871 |
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| Abstract: | A convective cloud transport model, without chemical processes, is developed by joining a set of concentration conservative equations into a two-dimensional, slab-symmetric and fully elastic numerical cloud model, and a nu-merical experiment is completed lo simulate the vertical transport of ground-borne, inert gaseous pollutant by deep thunderstorm. The simulation shows that deep convective storm can very effectively transport high concentrated pollutant gas from PBL upward to the upper troposphere in 30 to 40 minutes, where the pollutant spreads laterally outward with strong anvil outflow, forming an extensive high concentration area. Meanwhile, relatively low concen-tration areas are formed in PBL both below and beside the cloud, mainly caused by dynamic pumping effect and sub-cloud downdraft flow. About 80% of the pollutant gas transported to the upper troposphere is from the layer be-low 1.5 km AGL (ahove ground level). |
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| Keywords: | Vertical transport of pollutants Cloud transport Numerical cloud model Wet scavenging |
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