气候变化领域集成服务门户(CCPortal): Precipitation enhancement in stratocumulus clouds through airborne seeding: Sensitivity analysis by UCLALES-SALSA

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DOI	10.5194/acp-21-1035-2021
	Precipitation enhancement in stratocumulus clouds through airborne seeding: Sensitivity analysis by UCLALES-SALSA
	Tonttila J.; Afzalifar A.; Kokkola H.; Raatikainen T.; Korhonen H.; Romakkaniemi S.
发表日期	2021
ISSN	1680-7316
起始页码	1035
结束页码	1048
卷号	21 期号:2
英文摘要	Artificial enhancement of precipitation via hygroscopic cloud seeding is investigated with a numerical large-eddy simulation model coupled with a spectral aerosol-cloud microphysics module. We focus our investigation on marine stratocumulus clouds and evaluate our model results by comparing them with recently published results from field observations. Creating multiple realizations of a single cloud event with the model provides a robust method to detect and attribute the seeding effects, which reinforces the analysis based on experimental data. Owing to the detailed representation of aerosol-cloud interactions, our model successfully reproduces the microphysical signatures attributed to the seeding, which were also seen in the observations. Moreover, the model simulations show up to a 2-3-fold increase in the precipitation flux due to the seeding, depending on the seeding rate and injection strategy. However, our simulations suggest that a relatively high seeding particle emission rate is needed for a substantial increase in the precipitation yield, compared with the estimated seeding concentrations from the field campaign. In practical applications, the seeding aerosol is often produced by flare burning. It is speculated that the required number of large seeding particles suggested by our results could pose a technical challenge to the flare-based approach. © 2021 Royal Society of Chemistry. All rights reserved.
语种	英语
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/168813
作者单位	Finnish Meteorological Institute, P.O. Box 1627, Kuopio, 70211, Finland; Aalto University School of Science, Department of Applied Physics, Espoo, Finland; Finnish Meteorological Institute, P.O. Box 503, Helsinki, 00101, Finland
推荐引用方式 GB/T 7714	Tonttila J.,Afzalifar A.,Kokkola H.,et al. Precipitation enhancement in stratocumulus clouds through airborne seeding: Sensitivity analysis by UCLALES-SALSA[J],2021,21(2).
APA	Tonttila J.,Afzalifar A.,Kokkola H.,Raatikainen T.,Korhonen H.,&Romakkaniemi S..(2021).Precipitation enhancement in stratocumulus clouds through airborne seeding: Sensitivity analysis by UCLALES-SALSA.Atmospheric Chemistry and Physics,21(2).
MLA	Tonttila J.,et al."Precipitation enhancement in stratocumulus clouds through airborne seeding: Sensitivity analysis by UCLALES-SALSA".Atmospheric Chemistry and Physics 21.2(2021).