气候变化领域集成服务门户(CCPortal): Model physics and chemistry causing intermodel disagreement within the VolMIP-Tambora Interactive Stratospheric Aerosol ensemble

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DOI	10.5194/acp-21-3317-2021
	Model physics and chemistry causing intermodel disagreement within the VolMIP-Tambora Interactive Stratospheric Aerosol ensemble
	Clyne M.; Lamarque J.-F.; Mills M.J.; Khodri M.; Ball W.; Bekki S.; Dhomse S.S.; Lebas N.; Mann G.; Marshall L.; Niemeier U.; Poulain V.; Robock A.; Rozanov E.; Schmidt A.; Stenke A.; Sukhodolov T.; Timmreck C.; Toohey M.; Tummon F.; Zanchettin D.; Zhu Y.; Toon O.B.
发表日期	2021
ISSN	1680-7316
起始页码	3317
结束页码	3343
卷号	21 期号:5
英文摘要	As part of the Model Intercomparison Project on the climatic response to Volcanic forcing (VolMIP), several climate modeling centers performed a coordinated prestudy experiment with interactive stratospheric aerosol models simulating the volcanic aerosol cloud from an eruption resembling the 1815 Mt. Tambora eruption (VolMIP-Tambora ISA ensemble). The pre-study provided the ancillary ability to assess intermodel diversity in the radiative forcing for a large stratospheric-injecting equatorial eruption when the volcanic aerosol cloud is simulated interactively. An initial analysis of the VolMIP-Tambora ISA ensemble showed large disparities between models in the stratospheric global mean aerosol optical depth (AOD). In this study, we now show that stratospheric global mean AOD differences among the participating models are primarily due to differences in aerosol size, which we track here by effective radius. We identify specific physical and chemical processes that are missing in some models and/or parameterized differently between models, which are together causing the differences in effective radius. In particular, our analysis indicates that interactively tracking hydroxyl radical (OH) chemistry following a large volcanic injection of sulfur dioxide (SO2) is an important fac tor in allowing for the timescale for sulfate formation to be properly simulated. In addition, depending on the timescale of sulfate formation, there can be a large difference in effective radius and subsequently AOD that results from whether the SO2 is injected in a single model grid cell near the location of the volcanic eruption, or whether it is injected as a longitudinally averaged band around the Earth. © Author(s) 2021.
语种	英语
scopus关键词	atmospheric chemistry; atmospheric modeling; ensemble forecasting; hydroxyl radical; optical depth; parameterization; radiative forcing; stratosphere; sulfur dioxide; volcanic aerosol; Indonesia; Lesser Sunda Islands; Sumbawa; Tambora; West Nusa Tenggara
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/247091
作者单位	Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, CO, United States; Laboratory for Atmospheric and Space Physics, Boulder, CO, United States; National Center for Atmospheric Research, Boulder, CO, United States; Locean, Sorbonne Universités/UPMC/CNRS/IRD, Paris, France; Pmod Wrc Physical Meteorological Observatory Davos and World Radiation Center, Davos Dorf, Switzerland; Institute for Atmospheric and Climate Science, Eth Zurich, Zurich, Switzerland; Department of Geoscience and Remote Sensing, Tu Delft, Delft, Netherlands; LATMOS/IPSL, Sorbonne Université, UVSQ, Cnrs, Paris, France; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; National Centre for Atmospheric Science, University of Leeds, Leeds, United Kingdom; Department of Chemistry, University of Cambridge, Cambridge, United Kingdom; Max Planck Institute for Meteorology, Hamburg, Germany; Department of Environmental Sciences, Rutgers University, New Brunswick, NJ, United States; Department...
推荐引用方式 GB/T 7714	Clyne M.,Lamarque J.-F.,Mills M.J.,et al. Model physics and chemistry causing intermodel disagreement within the VolMIP-Tambora Interactive Stratospheric Aerosol ensemble[J],2021,21(5).
APA	Clyne M..,Lamarque J.-F..,Mills M.J..,Khodri M..,Ball W..,...&Toon O.B..(2021).Model physics and chemistry causing intermodel disagreement within the VolMIP-Tambora Interactive Stratospheric Aerosol ensemble.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(5).
MLA	Clyne M.,et al."Model physics and chemistry causing intermodel disagreement within the VolMIP-Tambora Interactive Stratospheric Aerosol ensemble".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.5(2021).