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DOI	10.5194/acp-21-2363-2021
	Impacts of cloud microphysics parameterizations on simulated aerosol-cloud interactions for deep convective clouds over Houston
	Zhang Y.; Fan J.; Li Z.; Rosenfeld D.
发表日期	2021
ISSN	1680-7316
起始页码	2363
结束页码	2381
卷号	21 期号:4
英文摘要	Aerosol-cloud interactions remain largely uncertain with respect to predicting their impacts on weather and climate. Cloud microphysics parameterization is one of the factors leading to large uncertainty. Here, we investigate the impacts of anthropogenic aerosols on the convective intensity and precipitation of a thunderstorm occurring on 19 June 2013 over Houston with the Chemistry version of Weather Research and Forecast model (WRF-Chem) using the Morrison two-moment bulk scheme and spectral bin microphysics (SBM) scheme. We find that the SBM predicts a deep convective cloud that shows better agreement with observations in terms of reflectivity and precipitation compared with the Morrison bulk scheme that has been used in many weather and climate models. With the SBM scheme, we see a significant invigoration effect on convective intensity and precipitation by anthropogenic aerosols, mainly through enhanced condensation latent heating. Such an effect is absent with the Morrison two-moment bulk microphysics, mainly because the saturation adjustment approach for droplet condensation and evaporation calculation limits the enhancement by aerosols in (1) condensation latent heat by removing the dependence of condensation on droplets and aerosols and (2) ice-related processes because the approach leads to stronger warm rain and weaker ice processes than the explicit supersaturation approach. © 2021 EDP Sciences. All rights reserved.
语种	英语
scopus关键词	aerosol; anthropogenic source; climate modeling; cloud microphysics; convective cloud; parameterization; precipitation (climatology); thunderstorm; Houston; Texas; United States
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/247139
作者单位	Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD, United States; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
推荐引用方式 GB/T 7714	Zhang Y.,Fan J.,Li Z.,et al. Impacts of cloud microphysics parameterizations on simulated aerosol-cloud interactions for deep convective clouds over Houston[J],2021,21(4).
APA	Zhang Y.,Fan J.,Li Z.,&Rosenfeld D..(2021).Impacts of cloud microphysics parameterizations on simulated aerosol-cloud interactions for deep convective clouds over Houston.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(4).
MLA	Zhang Y.,et al."Impacts of cloud microphysics parameterizations on simulated aerosol-cloud interactions for deep convective clouds over Houston".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.4(2021).