气候变化领域集成服务门户(CCPortal): Examining the atmospheric radiative and snow-darkening effects of black carbon and dust across the Rocky Mountains of the United States using WRF-Chem

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DOI	10.5194/acp-20-10911-2020
	Examining the atmospheric radiative and snow-darkening effects of black carbon and dust across the Rocky Mountains of the United States using WRF-Chem
	Rahimi S.; Liu X.; Zhao C.; Lu Z.; Lebo Z.J.
发表日期	2020
ISSN	1680-7316
起始页码	10911
结束页码	10935
卷号	20 期号:18
英文摘要	The Weather Research and Forecasting model coupled with Chemistry (WRF-Chem) is run to quantify the in-snow and atmospheric radiative effects of black carbon (BC) and dust on a convective-allowing (4 km) grid for water year 2009 across a large area of the Rocky Mountains. The snow-darkening effect (SDE) due to the deposition of these light-absorbing particles (LAPs) on surface snow enhances snowmelt by 3 to 12 mm during late spring and early summer, effectuating surface runoff increases (decreases) prior to (after) June. Meanwhile, aerosol-radiation interactions (ARIs) associated with LAPs generally dim the surface from incoming solar energy, introducing an energy deficit at the surface and leading to snowpack preservation by 1 to 5 mm. Surface runoff alterations brought forth by LAP ARI are of opposite phase to those associated with LAP SDEs, and the BC SDE drives a majority of the surface energy and hydrological perturbations. More generally, changes in snow water equivalent (SWE) brought forth by LAP effects are more a result of perturbations to the surface energy budget rather than changes in precipitation amount or type. It is also found that perturbations to the surface energy budget by dust ARI can differ in sign from those of BC ARI, with the former being positive, enhancing snow melting, and changing runoff. © 2020 EDP Sciences. All rights reserved.
语种	英语
scopus关键词	atmospheric chemistry; atmospheric convection; black carbon; dust; radiative transfer; seasonal variation; snow; snowmelt; weather forecasting; Rocky Mountains
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/141092
作者单位	Institute of the Environment and Sustainability, University of California Los Angeles, Los Angeles, CA 90095, United States; Department of Atmospheric Science, University of Wyoming, Laramie, WY 82071, United States; Department of Atmospheric Sciences, Texas AandM University, College Station, TX 77843, United States; School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China; CAS Center for Excellence in Comparative Planetology, USTC, Hefei, 230026, China
推荐引用方式 GB/T 7714	Rahimi S.,Liu X.,Zhao C.,et al. Examining the atmospheric radiative and snow-darkening effects of black carbon and dust across the Rocky Mountains of the United States using WRF-Chem[J],2020,20(18).
APA	Rahimi S.,Liu X.,Zhao C.,Lu Z.,&Lebo Z.J..(2020).Examining the atmospheric radiative and snow-darkening effects of black carbon and dust across the Rocky Mountains of the United States using WRF-Chem.Atmospheric Chemistry and Physics,20(18).
MLA	Rahimi S.,et al."Examining the atmospheric radiative and snow-darkening effects of black carbon and dust across the Rocky Mountains of the United States using WRF-Chem".Atmospheric Chemistry and Physics 20.18(2020).