气候变化领域集成服务门户(CCPortal): First Detection of a Brief Mesoscale Elevated Stratopause in Very Early Winter

CCPortal

DOI	10.1029/2019GL086751
	First Detection of a Brief Mesoscale Elevated Stratopause in Very Early Winter
	García-Comas M.; Funke B.; López-Puertas M.; González-Galindo F.; Kiefer M.; Höpfner M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:4
英文摘要	Elevated stratopauses are typically associated with prolonged disturbed conditions in the Northern Hemisphere polar winter. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) and the Microwave Limb Sounder (MLS) observed a short-lived and highly zonally asymmetric stratopause at mesospheric altitudes in November 2009, the earliest in the season reported so far. The Arctic climatological winter stratopause vanished, and MIPAS and MLS measured temperatures of 260 K at 82 km and 250 K at 75 km, respectively, in a region smaller than in typical midwinter elevated stratopause events. Planetary wave activity was initially high. Zonal mean zonal winds and the poleward temperature gradient northward of 70°N stayed reversed during 7 days, but the mesosphere did not cool. Wave activity dropped until the eastward stratospheric winds resumed and a strong vortex restored in the mesosphere. The stratopause emerged at high altitudes, staying there for 2–5 days. It was accompanied by enhanced downward transport. It took the stratopause 9 days to move down to its typical winter altitudes. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Ionosphere; Michelson interferometers; elevated stratopause; Measured temperatures; Mesospheric dynamics; Michelson interferometer for passive atmospheric soundings; Microwave limb sounder; Northern Hemispheres; Planetary wave activity; Zonal-mean zonal winds; Remote sensing; detection method; instrumentation; mesosphere; MIPAS; Northern Hemisphere; remote sensing; temperature gradient; winter; Arctic
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/170655
作者单位	Instituto de Astrofísica de Andalucía (CSIC), Granada, Spain; Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Karlsruhe, Germany
推荐引用方式 GB/T 7714	García-Comas M.,Funke B.,López-Puertas M.,et al. First Detection of a Brief Mesoscale Elevated Stratopause in Very Early Winter[J],2020,47(4).
APA	García-Comas M.,Funke B.,López-Puertas M.,González-Galindo F.,Kiefer M.,&Höpfner M..(2020).First Detection of a Brief Mesoscale Elevated Stratopause in Very Early Winter.Geophysical Research Letters,47(4).
MLA	García-Comas M.,et al."First Detection of a Brief Mesoscale Elevated Stratopause in Very Early Winter".Geophysical Research Letters 47.4(2020).