气候变化领域集成服务门户(CCPortal): Australian New Year's PyroCb Impact on Stratospheric Composition

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DOI	10.1029/2020GL090831
	Australian New Year's PyroCb Impact on Stratospheric Composition
	Schwartz M.J.; Santee M.L.; Pumphrey H.C.; Manney G.L.; Lambert A.; Livesey N.J.; Millán L.; Neu J.L.; Read W.G.; Werner F.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:24
英文摘要	Following the Australian New Year's pyrocumulonimbus complex between 29 December 2019 and 4 January 2020, the Aura Microwave Limb Sounder (MLS) observed a plume with unprecedented enhancements of H2O and biomass-burning products (CO, HCN, CH3Cl, CH3CN, and CH3OH) in the lower/middle stratosphere, accompanied by depressions in stratospheric species (O3 and HNO3). The plume persisted for ∼110 days, circling the globe twice while ascending to 5.62 hPa (∼35 km). Air masses drawn off the main plume moved toward the developing Antarctic polar vortex but do not appear to have penetrated it. Comparison of species in the plume requires consideration of their measurements' spatial resolutions and background abundances. The apparent decay of some long-lived plume constituents is largely attributable to their coarsening spatial resolution with height, which reduces observed peak values. Differing HCN/H2O signatures indicate that multiple early plumes originated from different stratospheric injection events. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Coarsening; Air mass; Antarctic polar vortex; Biomass-burning; Microwave limb sounder; Peak values; Spatial resolution; Chlorine compounds; plume; polar vortex; software; spatial resolution; stratosphere; Australia
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169292
作者单位	Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; School of GeoSciences, The University of Edinburgh, Edinburgh, United Kingdom; NorthWest Research Associates, Socorro, NM, United States; Department of Physics, New Mexico Institute of Mining and Technology, Socorro, NM, United States
推荐引用方式 GB/T 7714	Schwartz M.J.,Santee M.L.,Pumphrey H.C.,et al. Australian New Year's PyroCb Impact on Stratospheric Composition[J],2020,47(24).
APA	Schwartz M.J..,Santee M.L..,Pumphrey H.C..,Manney G.L..,Lambert A..,...&Werner F..(2020).Australian New Year's PyroCb Impact on Stratospheric Composition.Geophysical Research Letters,47(24).
MLA	Schwartz M.J.,et al."Australian New Year's PyroCb Impact on Stratospheric Composition".Geophysical Research Letters 47.24(2020).