气候变化领域集成服务门户(CCPortal): Multidecadal trend analysis of in situ aerosol radiative properties around the world

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DOI	10.5194/acp-20-8867-2020
	Multidecadal trend analysis of in situ aerosol radiative properties around the world
	Collaud Coen M.; Andrews E.; Lastuey A.; Petkov Arsov T.; Backman J.; Brem B.T.; Bukowiecki N.; Couret C.; Eleftheriadis K.; Flentje H.; Fiebig M.; Gysel-Beer M.; Hand J.L.; Hoffer A.; Hooda R.; Hueglin C.; Joubert W.; Keywood M.; Eun Kim J.; Kim S.-W.; Labuschagne C.; Lin N.-H.; Lin Y.; Lund Myhre C.; Luoma K.; Lyamani H.; Marinoni A.; Mayol-Bracero O.L.; Mihalopoulos N.; Pandolfi M.; Prats N.; Prenni A.J.; Putaud J.-P.; Ries L.; Reisen F.; Sellegri K.; Sharma S.; Sheridan P.; Patrick Sherman J.; Sun J.; Titos G.; Torres E.; Tuch T.; Weller R.; Wiedensohler A.; Zieger P.; Laj P.
发表日期	2020
ISSN	1680-7316
起始页码	8867
结束页码	8908
卷号	20 期号:14
英文摘要	In order to assess the evolution of aerosol parameters affecting climate change, a long-term trend analysis of aerosol optical properties was performed on time series from 52 stations situated across five continents. The time series of measured scattering, backscattering and absorption coefficients as well as the derived single scattering albedo, backscattering fraction, scattering and absorption Ångström exponents covered at least 10 years and up to 40 years for some stations. The non-parametric seasonal Mann-Kendall (MK) statistical test associated with several pre-whitening methods and with Sen's slope was used as the main trend analysis method. Comparisons with general least mean square associated with autoregressive bootstrap (GLS/ARB) and with standard least mean square analysis (LMS) enabled confirmation of the detected MK statistically significant trends and the assessment of advantages and limitations of each method. Currently, scattering and backscattering coefficient trends are mostly decreasing in Europe and North America and are not statistically significant in Asia, while polar stations exhibit a mix of increasing and decreasing trends. A few increasing trends are also found at some stations in North America and Australia. Absorption coefficient time series also exhibit primarily decreasing trends. For single scattering albedo, 52 % of the sites exhibit statistically significant positive trends, mostly in Asia, eastern/northern Europe and the Arctic, 22 % of sites exhibit statistically significant negative trends, mostly in central Europe and central North America, while the remaining 26 % of sites have trends which are not statistically significant. In addition to evaluating trends for the overall time series, the evolution of the trends in sequential 10-year segments was also analyzed. For scattering and backscattering, statistically significant increasing 10-year trends are primarily found for earlier periods (10-year trends ending in 2010-2015) for polar stations and Mauna Loa. For most of the stations, the present-day statistically significant decreasing 10-year trends of the single scattering albedo were preceded by not statistically significant and statistically significant increasing 10-year trends. The effect of air pollution abatement policies in continental North America is very obvious in the 10-year trends of the scattering coefficient - there is a shift to statistically significant negative trends in 2009-2012 for all stations in the eastern and central USA. This long-term trend analysis of aerosol radiative properties with a broad spatial coverage provides insight into potential aerosol effects on climate changes. © 2020 Royal Society of Chemistry. All rights reserved.
语种	英语
scopus关键词	absorption; aerosol; backscatter; climate change; comparative study; decadal variation; global perspective; in situ measurement; least squares method; optical property; radiative forcing; trend analysis; Asia; Australia; Europe; North America
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/247623
作者单位	Federal Office of Meteorology and Climatology, MeteoSwiss, Payerne, Switzerland; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; NOAA/Global Monitoring Laboratory, Boulder, CO, United States; Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (CSIC), Barcelona, Spain; Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria; Atmospheric Composition Research, Finnish Meteorological Institute, Helsinki, Finland; Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen PSI, Switzerland; Atmospheric Sciences, Department of Environmental Sciences, University of Basel, Basel, Switzerland; German Environment Agency (UBA), Zugspitze, Germany; Institute of Nuclear and Radiological Science and Technology, Energy and Safety N.C.S.R. "demokritos", Attiki, Greece; German Weather Service, Meteorological Observatory Hohenpeissenberg, Hohenpeißenberg, Germany; NI...
推荐引用方式 GB/T 7714	Collaud Coen M.,Andrews E.,Lastuey A.,et al. Multidecadal trend analysis of in situ aerosol radiative properties around the world[J],2020,20(14).
APA	Collaud Coen M..,Andrews E..,Lastuey A..,Petkov Arsov T..,Backman J..,...&Laj P..(2020).Multidecadal trend analysis of in situ aerosol radiative properties around the world.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(14).
MLA	Collaud Coen M.,et al."Multidecadal trend analysis of in situ aerosol radiative properties around the world".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.14(2020).