气候变化领域集成服务门户(CCPortal): Australian PyroCb Smoke Generates Synoptic-Scale Stratospheric Anticyclones

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DOI	10.1029/2020GL088101
	Australian PyroCb Smoke Generates Synoptic-Scale Stratospheric Anticyclones
	Kablick G.P.; III; Allen D.R.; Fromm M.D.; Nedoluha G.E.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:13
英文摘要	Fires in southeastern Australia produced at least 18 pyrocumulonimbus (pyroCb) between 29 December 2019 and 4 January 2020. The largest plumes from this event exhibited several previously undocumented phenomena in the stratosphere. These include (i) the generation of potential vorticity and anticyclonic circulations from absorptive aerosol heating, (ii) the formation of a vertical temperature anomaly dipole, (iii) the rapid ascent from the lowermost stratosphere (15–16 km) to altitudes above 31 km in less than 2 months, (iv) an unprecedented abundance of H2O and CO in the stratosphere, and (v) the displacement of background O3 and N2O from rapid ascent of air from the troposphere and lower stratosphere. Each of these phenomena is traced back to a 5-day-old stratospheric plume composed of a massive amount of aerosol and biomass burning gases from a pyroCb outbreak. Until now, there has been no documented evidence that pyroCb plumes can affect stratospheric winds. © 2020. The Authors.
英文关键词	Aerosols; Atmospheric pressure; Anticyclonic circulation; Biomass-burning; Lower stratosphere; Lowermost stratosphere; Potential vorticity; South-eastern Australia; Stratospheric winds; Vertical temperature; Smoke; aerosol composition; aerosol property; anticyclone; atmospheric plume; biomass burning; cumulonimbus; potential vorticity; smoke; stratosphere; temperature anomaly; troposphere; 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/170154
作者单位	US Naval Research Laboratory, Washington, DC, United States
推荐引用方式 GB/T 7714	Kablick G.P.,III,Allen D.R.,et al. Australian PyroCb Smoke Generates Synoptic-Scale Stratospheric Anticyclones[J],2020,47(13).
APA	Kablick G.P.,III,Allen D.R.,Fromm M.D.,&Nedoluha G.E..(2020).Australian PyroCb Smoke Generates Synoptic-Scale Stratospheric Anticyclones.Geophysical Research Letters,47(13).
MLA	Kablick G.P.,et al."Australian PyroCb Smoke Generates Synoptic-Scale Stratospheric Anticyclones".Geophysical Research Letters 47.13(2020).