Title小风条件下大气扩散模式发展回顾研究
Other TitlesReview on Development of Atmospheric Dispersion Models under Low Wind Speed Condition
Authors朱好
张宏升
蔡旭晖
Affiliation中国核电工程有限公司,北京,100840
北京大学物理学院大气与海洋科学系气候与海-气实验室,北京,100871
北京大学 环境科学与工程学院环境科学系,北京,100871
Keywords小风
大气扩散
解析模式
数值模式
参数化方案
low wind speed
atmospheric dispersion
analytical models
numerical models
parameterization schemes
Issue Date2015
Publisher环境科学与管理
Citation环境科学与管理.2015,(8),57-61.
Abstract由于小风对污染事件的潜在影响,以及与中等风速和大风条件相比边界层结构、湍流和扩散的特殊性,常规的稳态高斯烟流模式在这种条件下具有局限性,建立适用于小风条件的大气扩散模式具有重要的理论和实际意义。本文回顾了近年来小风条件下大气扩散模式的建立和发展,从较简单的解析模式到复杂的数值模式,并对不同模式的参数化方案、与示踪物实验的比较结果、适用性和不足之处进行了总结。综合考虑不同模式的优劣,在应用方面有利于根据实际情况选择合适的模式,在模式开发方面,有助于建立更加完备的大气扩散模式。
Considering the potential influence of low wind speed condition on pollution episodes , and the differences of PBL structure, turbulence and dispersion under this condition and those under moderate and strong wind conditions , the conventional steady state Gaussian plume model has encountered limitations under low wind speed condition.Hence, developing atmospheric dispersion models suitable for weak wind condition is significant both theoretically and practically.This paper has reviewed the es-tablishment and development of atmospheric dispersion models applied under low wind speed condition in recent years , from sim-ple analytical models to complex numerical models.The parameterization schemes of various models, comparisons between simu-lations and tracer experiments, and the applicability and shortcomings of the models are summarized .Taking into account of the advantages and disadvantages of various models can be useful for choosing a suitable model according to the actual conditions from the applying perspective.From the viewpoint of model development, it will be conductive to establish a more comprehensive at-mospheric dispersion model.
URIhttp://hdl.handle.net/20.500.11897/420959
ISSN1673-1212
DOI10.3969/j.issn.1673-1212.2015.08.016
Appears in Collections:物理学院
环境科学与工程学院

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