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DOI | 10.5194/acp-17-4599-2017 |
The role of the gamma function shape parameter in determining differences between condensation rates in bin and bulk microphysics schemes | |
Igel, Adele L.; van den Heever, Susan C. | |
2017-04-07 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The condensation and evaporation rates predicted by bin and bulk microphysics schemes in the same model framework are compared in a statistical way using simulations of non-precipitating shallow cumulus clouds. Despite other fundamental disparities between the bin and bulk condensation parameterizations, the differences in condensation rates are predominantly explained by accounting for the width of the cloud droplet size distributions simulated by the bin scheme. While the bin scheme does not always predict a cloud droplet size distribution that is well represented by a gamma distribution function (which is assumed by bulk schemes), this fact appears to be of secondary importance for explaining why the two schemes predict different condensation and evaporation rates. The width of the cloud droplet size is not well constrained by observations, and thus it is difficult to know how to appropriately specify it in bulk microphysics schemes. However, this study shows that enhancing our observations of this width and its behavior in clouds is important for accurately predicting condensation and evaporation rates. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399403400001 |
WOS关键词 | DROPLET SIZE DISTRIBUTIONS ; PART I ; NUMBER CONCENTRATION ; SIMULATIONS ; MODEL ; CLOUDS ; RAMS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/30868 |
专题 | 地球科学 |
作者单位 | Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | Igel, Adele L.,van den Heever, Susan C.. The role of the gamma function shape parameter in determining differences between condensation rates in bin and bulk microphysics schemes[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(7). |
APA | Igel, Adele L.,&van den Heever, Susan C..(2017).The role of the gamma function shape parameter in determining differences between condensation rates in bin and bulk microphysics schemes.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(7). |
MLA | Igel, Adele L.,et al."The role of the gamma function shape parameter in determining differences between condensation rates in bin and bulk microphysics schemes".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.7(2017). |
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