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DOI | 10.1175/JAS-D-17-0234.1 |
The Use of Partial Cloudiness in a Bulk Cloud Microphysics Scheme: Concept and 2D Results | |
Kim, So-Young; Hong, Song-You | |
2018-08-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:8页码:2711-2719 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | The source and sink terms of microphysical processes vary nonlinearly with cloud condensate amount. Therefore, partial cloudiness is one of the important factors to be considered in a cloud microphysics scheme given that in-cloud condensate amount depends on the cloud fraction of the grid box. An alternative concept to represent the partial cloudiness effect on the microphysical processes of a bulk microphysics scheme is proposed. Based on the statistical relationship between cloud condensate and cloudiness, all hydrometeors in the microphysical processes are treated after converting them to in-cloud values by dividing the amount by estimated cloudiness and multiplying it after the computation of all microphysics terms. The underlying assumption is that all the microphysical processes occur in a cloudy part of the grid box. In a 2D idealized storm case, the Weather Research and Forecasting (WRF) single-moment 5-class (WSM5) microphysics scheme with the proposed approach increases the amount of snow and rain through enhanced autoconversion/accretion and increases precipitation reaching the surface. |
英文关键词 | Cloud cover Cloud microphysics Cloud parameterizations Numerical weather prediction forecasting |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000439546900004 |
WOS关键词 | PARAMETERIZATION ; PRECIPITATION ; MODEL ; FRACTION ; ECMWF ; REPRESENTATION ; MESOSCALE ; PDF |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29634 |
专题 | 地球科学 |
作者单位 | Korea Inst Atmospher Predict Syst, Seoul, South Korea |
推荐引用方式 GB/T 7714 | Kim, So-Young,Hong, Song-You. The Use of Partial Cloudiness in a Bulk Cloud Microphysics Scheme: Concept and 2D Results[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(8):2711-2719. |
APA | Kim, So-Young,&Hong, Song-You.(2018).The Use of Partial Cloudiness in a Bulk Cloud Microphysics Scheme: Concept and 2D Results.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(8),2711-2719. |
MLA | Kim, So-Young,et al."The Use of Partial Cloudiness in a Bulk Cloud Microphysics Scheme: Concept and 2D Results".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.8(2018):2711-2719. |
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