气候变化领域集成服务门户(CCPortal): Far-Ranging Impact of Mountain Waves Excited Over Greenland on Stratospheric Dehydration and Rehydration

CCPortal

DOI	10.1029/2020JD033055
	Far-Ranging Impact of Mountain Waves Excited Over Greenland on Stratospheric Dehydration and Rehydration
	Kivi R.; Dörnbrack A.; Sprenger M.; Vömel H.
发表日期	2020
ISSN	2169897X
卷号	125 期号:18
英文摘要	In situ observations of reduced stratospheric water vapor combined with those of ice particle formation are rarely conducted. On the one hand, they are essential to broaden our knowledge about the formation of polar stratospheric clouds (PSCs). On the other hand, the observed profiles allow the comparison with global circulation models. Here we report about a balloon-borne observation above Sodankylä, Finland on 26 January 2005. The frostpoint hygrometer detected layers of reduced water vapor by up to 2 ppmv from 18.5 to 23 km. Beneath, a 1-km-deep layer of increased water vapor was identified. An aerosol backscatter sonde measured the presence of stratospheric ice clouds. According to meteorological analysis the PSCs were formed upstream above the east coast of Greenland due to mountain wave-induced cooling. The inertia-gravity waves generated a large and persistent stratospheric wake far downstream of Greenland and led to the observed dehydration. Comparing the most recent ERA5 data with operational analyses from 2005, we find an improved representation of mesoscale internal gravity waves, dehydration and PSC formation for this particular event. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Arctic stratospheric vortex; polar stratospheric clouds; stratospheric water vapor
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185769
作者单位	Space and Earth Observation Centre, Finnish Meteorological Institute, Sodankylä, Finland; DLR Oberpfaffenhofen, Institut für Physik der Atmosphäre, Wessling, Germany; Institute for Atmospheric and Climate Science, ETH Zürich, Zürich, Switzerland; Earth Observing Laboratory, NCAR, Boulder, CO, United States
推荐引用方式 GB/T 7714	Kivi R.,Dörnbrack A.,Sprenger M.,et al. Far-Ranging Impact of Mountain Waves Excited Over Greenland on Stratospheric Dehydration and Rehydration[J],2020,125(18).
APA	Kivi R.,Dörnbrack A.,Sprenger M.,&Vömel H..(2020).Far-Ranging Impact of Mountain Waves Excited Over Greenland on Stratospheric Dehydration and Rehydration.Journal of Geophysical Research: Atmospheres,125(18).
MLA	Kivi R.,et al."Far-Ranging Impact of Mountain Waves Excited Over Greenland on Stratospheric Dehydration and Rehydration".Journal of Geophysical Research: Atmospheres 125.18(2020).