气候变化领域集成服务门户(CCPortal): Impact of Holuhraun volcano aerosols on clouds in cloud-system-resolving simulations

CCPortal

DOI	10.5194/acp-22-8457-2022
	Impact of Holuhraun volcano aerosols on clouds in cloud-system-resolving simulations
	Haghighatnasab, Mahnoosh; Kretzschmar, Jan; Block, Karoline; Quaas, Johannes
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	8457
结束页码	8472
卷号	22 期号:13 页码:16
英文摘要	Increased anthropogenic aerosols result in an enhancement in cloud droplet number concentration (N-d), which consequently modifies the cloud and precipitation process. It is unclear how exactly the cloud liquid water path (LWP) and cloud fraction respond to aerosol perturbations. A volcanic eruption may help to better understand and quantify the cloud response to external perturbations, with a focus on the short-term cloud adjustments. The goal of the present study is to understand and quantify the response of clouds to a selected volcanic eruption and to thereby advance the fundamental understanding of the cloud response to external forcing. In this study we used the ICON (ICOsahedral Non-hydrostatic) model in its numerical weather prediction setup at a cloud-system-resolving resolution of 2.5 km horizontally, to simulate the region around the Holuhraun volcano for 1 week (1-7 September 2014). A pair of simulations, with and without the volcanic aerosol plume, allowed us to assess the simulated effective radiative forcing and its mechanisms, as well as its impact on adjustments of LWP and cloud fraction to the perturbations of N-d. In comparison to MODIS (Moderate Resolution Imaging Spectroradiometer) satellite retrievals, a clear enhancement of N-d due to the volcanic aerosol is detected and attributed. In contrast, no changes in either LWP or cloud fraction could be attributed. The on average almost unchanged LWP is a result of some LWP enhancement for thick clouds and a decrease for thin clouds.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000820209900001
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/273855
作者单位	Leipzig University
推荐引用方式 GB/T 7714	Haghighatnasab, Mahnoosh,Kretzschmar, Jan,Block, Karoline,et al. Impact of Holuhraun volcano aerosols on clouds in cloud-system-resolving simulations[J],2022,22(13):16.
APA	Haghighatnasab, Mahnoosh,Kretzschmar, Jan,Block, Karoline,&Quaas, Johannes.(2022).Impact of Holuhraun volcano aerosols on clouds in cloud-system-resolving simulations.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(13),16.
MLA	Haghighatnasab, Mahnoosh,et al."Impact of Holuhraun volcano aerosols on clouds in cloud-system-resolving simulations".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.13(2022):16.