气候变化领域集成服务门户(CCPortal): Representation of low-tropospheric temperature inversions in ECMWF reanalyses over Europe

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DOI	10.1088/1748-9326/ab7d5d
	Representation of low-tropospheric temperature inversions in ECMWF reanalyses over Europe
	Palarz A.; Luterbacher J.; Ustrnul Z.; Xoplaki E.; Celiński-Mysław D.
发表日期	2020
ISSN	17489318
卷号	15 期号:7
英文摘要	Despite the fact that tropospheric temperature inversions are thought to be an important feature of climate as well as a significant factor affecting air quality, low-level cloud formation, and the radiation budget of the Earth, a quantitative assessment of their representation in atmospheric reanalyses is yet missing. Here, we provide new evidence of the occurrence of low-tropospheric temperature inversions and associated uncertainties in their parameters existing among reanalyses produced by the European Centre for Medium-Range Weather Forecasts (ECMWF) and upper-air soundings for Europe covering the period 2001-2010. The reanalyses utilized here include (1) surface-input reanalyses represented by ERA-20C and CERA-20C as well as (2) full-input reanalyses represented by ERA-Interim and ERA5. The upper-air soundings were derived from the Integrated Global Radiosonde Archive (IGRA), version 2. The data consists mainly of air temperature and geopotential height from the model levels (ModLev) and pressure levels (PresLev) of ECMWF reanalyses. The results show that the frequency of surface-based inversions (SBI) and elevated inversions (EI) is largely in agreement among the reanalyses. The quality of their representation depends, however, on the inversion type, season, and region. Over the vast majority of IGRA upper-air stations, SBI frequency is overestimated and EI frequency is underestimated by ECMWF reanalyses. Substantially larger uncertainties arise from the selection between the data of ModLev and PresLev of the reanalyses - the differences in the frequency of the temperature inversions are particularly large for summertime SBI suggesting that PresLev are not capable of resolving the main features of shallow and weak SBI. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	data evaluation; ECMWF reanalyses; lower-tropospheric stability; temperature inversions; upper-air soundings
语种	英语
scopus关键词	Air quality; Budget control; Climatology; Troposphere; Weather forecasting; European centre for medium-range weather forecasts; Geo-potential heights; Important features; Quantitative assessments; Radiation budget; Surface-based inversion; Temperature inversions; Tropospheric temperature; Atmospheric temperature; air temperature; low temperature; temperature effect; temperature inversion; troposphere; Europe
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153926
作者单位	Department of Climatology, Jagiellonian University in Krakow, Kraków, Poland; Department of Geography, Climatology, Climate Dynamics and Climate Change, Center of International Development and Environmental Research, Justus Liebig University Giessen, Giessen, Germany; Science and Innovation Department, World Meteorological Organization (WMO), Geneva, Switzerland
推荐引用方式 GB/T 7714	Palarz A.,Luterbacher J.,Ustrnul Z.,et al. Representation of low-tropospheric temperature inversions in ECMWF reanalyses over Europe[J],2020,15(7).
APA	Palarz A.,Luterbacher J.,Ustrnul Z.,Xoplaki E.,&Celiński-Mysław D..(2020).Representation of low-tropospheric temperature inversions in ECMWF reanalyses over Europe.Environmental Research Letters,15(7).
MLA	Palarz A.,et al."Representation of low-tropospheric temperature inversions in ECMWF reanalyses over Europe".Environmental Research Letters 15.7(2020).