气候变化领域集成服务门户(CCPortal): Dominant role of mineral dust in cirrus cloud formation revealed by global-scale measurements

CCPortal

DOI	10.1038/s41561-022-00901-w
	Dominant role of mineral dust in cirrus cloud formation revealed by global-scale measurements
	Froyd, Karl D.; Yu, Pengfei; Schill, Gregory P.; Brock, Charles A.; Kupc, Agnieszka; Williamson, Christina J.; Jensen, Eric J.; Ray, Eric; Rosenlof, Karen H.; Bian, Huisheng; Darmenov, Anton S.; Colarco, Peter R.; Diskin, Glenn S.; Bui, ThaoPaul; Murphy, Daniel M.
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
起始页码	177
结束页码	+
卷号	15 期号:3 页码:10
英文摘要	Airborne mineral dust particles can act as natural seeds for cirrus clouds in the upper troposphere. However, the atmospheric abundance of dust is unconstrained in cirrus-forming regions, hampering our ability to predict these radiatively important clouds. Here we present global-scale measurements of dust aerosol abundance in the upper troposphere and incorporate these into a detailed cirrus-formation model. We show that dust aerosol initiates cirrus clouds throughout the extra-tropics in all seasons and dominates cirrus formation in the Northern Hemisphere (75-93% of clouds seasonally). Using a global transport model with improved dust treatment, we also explore which of Earth's deserts are the largest contributors of dust aerosol to cirrus-forming regions. We find that the meteorological environment downstream of each emission region modulates dust atmospheric lifetime and transport efficiency to the upper troposphere so that source contributions are disproportionate to emissions. Our findings establish the critical role of dust in Earth's climate system through the formation of cirrus clouds. Cirrus cloud formation in the Northern Hemisphere is primarily triggered by mineral dust, according to global-scale dust observations and a cirrus-formation model.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000761836900003
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272504
作者单位	National Oceanic Atmospheric Admin (NOAA) - USA; University of Colorado System; University of Colorado Boulder; Jinan University; University of Vienna; National Aeronautics & Space Administration (NASA); NASA Goddard Space Flight Center; University System of Maryland; University of Maryland Baltimore County; National Aeronautics & Space Administration (NASA); NASA Langley Research Center; National Aeronautics & Space Administration (NASA); NASA Ames Research Center
推荐引用方式 GB/T 7714	Froyd, Karl D.,Yu, Pengfei,Schill, Gregory P.,et al. Dominant role of mineral dust in cirrus cloud formation revealed by global-scale measurements[J],2022,15(3):10.
APA	Froyd, Karl D..,Yu, Pengfei.,Schill, Gregory P..,Brock, Charles A..,Kupc, Agnieszka.,...&Murphy, Daniel M..(2022).Dominant role of mineral dust in cirrus cloud formation revealed by global-scale measurements.NATURE GEOSCIENCE,15(3),10.
MLA	Froyd, Karl D.,et al."Dominant role of mineral dust in cirrus cloud formation revealed by global-scale measurements".NATURE GEOSCIENCE 15.3(2022):10.