气候变化领域集成服务门户(CCPortal): Aerosols in the E3SM Version 1: New Developments and Their Impacts on Radiative Forcing

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DOI	10.1029/2019MS001851
	Aerosols in the E3SM Version 1: New Developments and Their Impacts on Radiative Forcing
	Wang H.; Easter R.C.; Zhang R.; Ma P.-L.; Singh B.; Zhang K.; Ganguly D.; Rasch P.J.; Burrows S.M.; Ghan S.J.; Lou S.; Qian Y.; Yang Y.; Feng Y.; Flanner M.; Leung R.L.; Liu X.; Shrivastava M.; Sun J.; Tang Q.; Xie S.; Yoon J.-H.
发表日期	2020
ISSN	19422466
卷号	12 期号:1
英文摘要	The new Energy Exascale Earth System Model Version 1 (E3SMv1) developed for the U.S. Department of Energy has significant new treatments of aerosols and light-absorbing snow impurities as well as their interactions with clouds and radiation. This study describes seven sets of new aerosol-related treatments (involving emissions, new particle formation, aerosol transport, wet scavenging and resuspension, and snow radiative transfer) and examines how they affect global aerosols and radiative forcing in E3SMv1. Altogether, they give a reduced total aerosol radiative forcing (−1.6 W/m2) and sensitivity in cloud liquid water to aerosols, but an increased sensitivity in cloud droplet size to aerosols. A new approach for H2SO4 production and loss largely reduces a low bias in small particles concentrations and leads to substantial increases in cloud condensation nuclei concentrations and cloud radiative cooling. Emitting secondary organic aerosol precursor gases from elevated sources increases the column burden of secondary organic aerosol, contributing substantially to global clear-sky aerosol radiative cooling (−0.15 out of −0.5 W/m2). A new treatment of aerosol resuspension from evaporating precipitation, developed to remedy two shortcomings of the original treatment, produces a modest reduction in aerosols and cloud droplets; its impact depends strongly on the model physics and is much stronger in E3SM Version 0. New treatments of the mixing state and optical properties of snow impurities and snow grains introduce a positive present-day shortwave radiative forcing (0.26 W/m2), but changes in aerosol transport and wet removal processes also affect the concentration and radiative forcing of light-absorbing impurities in snow/ice. © 2019. The Authors.
英文关键词	aerosol; aerosol-cloud interaction; E3SM; EAMv1; radiative forcing; snow impurity
语种	英语
scopus关键词	Aerosols; Atmospheric radiation; Drops; Optical properties; Radiative Cooling; Removal; Snow; Aerosol-cloud interaction; E3SM; EAMv1; Radiative forcings; Snow impurity; Atmospheric movements; aerosol; climate modeling; cloud condensation nucleus; cloud droplet; cooling; precipitation (climatology); radiative forcing; snow cover; volcanic cloud
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156777
作者单位	Pacific Northwest National Laboratory, Richland, WA, United States; Now at Indian Institute of Technology (IIT) Delhi, New Delhi, India; Now at Nanjing University of Information Science and Technology, Nanjing, China; Argonne National Laboratory, Lemont, IL, United States; University of Michigan, Ann Arbor, MI, United States; University of Wyoming, Laramie, WY, United States; Now at Texas A&M University, College Station, TX, United States; Lawrence Livermore National Laboratory, Livermore, CA, United States; Now at Gwangju Institute of Science and Technology, Gwangju, South Korea
推荐引用方式 GB/T 7714	Wang H.,Easter R.C.,Zhang R.,et al. Aerosols in the E3SM Version 1: New Developments and Their Impacts on Radiative Forcing[J],2020,12(1).
APA	Wang H..,Easter R.C..,Zhang R..,Ma P.-L..,Singh B..,...&Yoon J.-H..(2020).Aerosols in the E3SM Version 1: New Developments and Their Impacts on Radiative Forcing.Journal of Advances in Modeling Earth Systems,12(1).
MLA	Wang H.,et al."Aerosols in the E3SM Version 1: New Developments and Their Impacts on Radiative Forcing".Journal of Advances in Modeling Earth Systems 12.1(2020).