A European aerosol phenomenology-6: scattering properties of atmospheric aerosol particles from 28 ACTRIS sites

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A European aerosol phenomenology-6 : scattering properties of atmospheric aerosol particles from 28 ACTRIS sites

Pandolfi, Marco (författare): CSIC Institute of Environmental Assessment and Water Research (IDAEA)

Alados-Arboledas, Lucas (författare): University of Granada

Alastuey, Andres (författare): CSIC Institute of Environmental Assessment and Water Research (IDAEA)

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Andrade, Marcos (författare): Higher University of San Andrés

Angelov, Christo (författare): Institute for Nuclear Research and Nuclear Energy, BAS

Artinano, Begona (författare): Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)

Backman, John (författare): Finnish Meteorological Institute,University of Helsinki

Baltensperger, Urs (författare): Paul Scherrer Institute

Bonasoni, Paolo (författare): CNR Institute of Atmospheric Sciences and Climate (CNR-ISAC)

Bukowiecki, Nicolas (författare): Paul Scherrer Institute

Coen, Martine Collaud (författare): Federal Office of Meteorology and Climatology

Conil, Sebastien (författare): Agence Nationale pour la gestion des Déchets RadioActifs

Coz, Esther (författare): Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)

Crenn, Vincent (författare): Laboratoire des Sciences du Climat et de l'Environnement,ADDAIR

Dudoitis, Vadimas (författare): Center for Physical Sciences and Technology, Lithuania

Ealo, Marina (författare): CSIC Institute of Environmental Assessment and Water Research (IDAEA)

Eleftheriadis, Kostas (författare): National Centre for Scientific Research Demokritos

Favez, Olivier (författare)

Fetfatzis, Prodromos (författare): National Centre for Scientific Research Demokritos

Fiebig, Markus (författare): Norwegian Institute for Air Research

Flentje, Harald (författare): German Meteorological Service (DWD)

Ginot, Patrick (författare): University Grenoble Alpes

Gysel, Martin (författare): Paul Scherrer Institute

Henzing, Bas (författare): Netherlands Organisation for Applied Scientific Research (Hague)

Hoffer, Andras (författare): University of Pannonia,Hungarian Academy of Sciences

Smejkalova, Adela Holubova (författare): Global Change Research Centre of the Czech Academy of Sciences,Czech Hydrometeorological Institute

Kalapov, Ivo (författare): Institute for Nuclear Research and Nuclear Energy, BAS

Kalivitis, Nikos (författare): University of Crete,National Observatory of Athens

Kouvarakis, Giorgos (författare): University of Crete

Kristensson, Adam (författare): Lund University,Lunds universitet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Kulmala, Markku (författare): University of Helsinki

Lihavainen, Heikki (författare): Finnish Meteorological Institute

Lunder, Chris (författare): Norwegian Institute for Air Research

Luoma, Krista (författare): University of Helsinki

Lyamani, Hassan (författare): University of Granada

Marinoni, Angela (författare): CNR Institute of Atmospheric Sciences and Climate (CNR-ISAC)

Mihalopoulos, Nikos (författare): University of Crete,National Observatory of Athens

Moerman, Marcel (författare): Netherlands Organisation for Applied Scientific Research (Hague)

Nicolas, Jose (författare): Blaise Pascal University

O'Dowd, Colin (författare): National University of Ireland Galway

Petaja, Tuukka (författare): University of Helsinki

Petit, Jean-Eudes (författare): Laboratoire des Sciences du Climat et de l'Environnement,French National Institute for Industrial Environment and Risks

Pichon, Jean Marc (författare): Blaise Pascal University

Prokopciuk, Nina (författare): Center for Physical Sciences and Technology, Lithuania

Putaud, Jean-Philippe (författare): European Commission Joint Research Centre, Ispra

Rodriguez, Sergio (författare): Agencia Estatal de Meteorologia

Sciare, Jean (författare): Laboratoire des Sciences du Climat et de l'Environnement

Sellegri, Karine (författare): Blaise Pascal University

Swietlicki, Erik (författare): Lund University,Lunds universitet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Titos, Gloria (författare): University of Granada

Tuch, Thomas (författare): Leibniz Institute for Tropospheric Research (TROPOS)

Tunved, Peter (författare): Stockholm University,Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi

Ulevicius, Vidmantas (författare): Center for Physical Sciences and Technology, Lithuania

Vaishya, Aditya (författare): Vikram Sarabhai Space Centre,National University of Ireland Galway

Vana, Milan (författare): Global Change Research Centre of the Czech Academy of Sciences,Czech Hydrometeorological Institute

Virkkula, Aki (författare): University of Helsinki

Vratolis, Stergios (författare): National Centre for Scientific Research Demokritos

Weingartner, Ernest (författare): Paul Scherrer Institute

Wiedensohler, Alfred (författare): Leibniz Institute for Tropospheric Research (TROPOS)

Laj, Paolo (författare): CNR Institute of Atmospheric Sciences and Climate (CNR-ISAC),University of Helsinki,University Grenoble Alpes

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2018-06-05
2018
Engelska.
Ingår i: Atmospheric Chemistry And Physics. - : Copernicus GmbH. - 1680-7316 .- 1680-7324. ; 18:11, s. 7877-7911

Relaterad länk:: https://doi.org/10.5...; visa fler...; https://acp.copernic...; http://dx.doi.org/10... (free); https://urn.kb.se/re...; https://doi.org/10.5...; https://lup.lub.lu.s...; visa färre...

Tidskriftsartikel (refereegranskat)

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This paper presents the light-scattering properties of atmospheric aerosol particles measured over the past decade at 28 ACTRIS observatories, which are located mainly in Europe. The data include particle light scattering (sigma(sp)) and hemispheric backscattering (sigma(bsp)) coefficients, scattering Angstrom exponent (SAE), backscatter fraction (BF) and asymmetry parameter (g). An increasing gradient of sigma(sp) is observed when moving from remote environments (arctic/mountain) to regional and to urban environments. At a regional level in Europe, sigma(sp) also increases when moving from Nordic and Baltic countries and from western Europe to central/eastern Europe, whereas no clear spatial gradient is observed for other station environments. The SAE does not show a clear gradient as a function of the placement of the station. However, a west-to-east-increasing gradient is observed for both regional and mountain placements, suggesting a lower fraction of fine-mode particle in western/south-western Europe compared to central and eastern Europe, where the fine-mode particles dominate the scattering. The g does not show any clear gradient by station placement or geographical location reflecting the complex relationship of this parameter with the physical properties of the aerosol particles. Both the station placement and the geographical location are important factors affecting the intraannual variability. At mountain sites, higher sigma(sp) and SAE values are measured in the summer due to the enhanced boundary layer influence and/or new particle-formation episodes. Conversely, the lower horizontal and vertical dispersion during winter leads to higher sigma(sp) values at all low-altitude sites in central and eastern Europe compared to summer. These sites also show SAE maxima in the summer (with corresponding g minima). At all sites, both SAE and g show a strong variation with aerosol particle loading. The lowest values of g are always observed together with low sigma(sp) values, indicating a larger contribution from particles in the smaller accumulation mode. During periods of high sigma(sp) values, the variation of g is less pronounced, whereas the SAE increases or decreases, suggesting changes mostly in the coarse aerosol particle mode rather than in the fine mode. Statistically significant decreasing trends of sigma(sp) are observed at 5 out of the 13 stations included in the trend analyses. The total reductions of sigma(sp) are consistent with those reported for PM2.5 and PM10 mass concentrations over similar periods across Europe.

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Av författaren/redakt...: Pandolfi, Marco; Alados-Arboledas ...; Alastuey, Andres; Andrade, Marcos; Angelov, Christo; Artinano, Begona; visa fler...; Backman, John; Baltensperger, U ...; Bonasoni, Paolo; Bukowiecki, Nico ...; Coen, Martine Co ...; Conil, Sebastien; Coz, Esther; Crenn, Vincent; Dudoitis, Vadima ...; Ealo, Marina; Eleftheriadis, K ...; Favez, Olivier; Fetfatzis, Prodr ...; Fiebig, Markus; Flentje, Harald; Ginot, Patrick; Gysel, Martin; Henzing, Bas; Hoffer, Andras; Smejkalova, Adel ...; Kalapov, Ivo; Kalivitis, Nikos; Kouvarakis, Gior ...; Kristensson, Ada ...; Kulmala, Markku; Lihavainen, Heik ...; Lunder, Chris; Luoma, Krista; Lyamani, Hassan; Marinoni, Angela; Mihalopoulos, Ni ...; Moerman, Marcel; Nicolas, Jose; O'Dowd, Colin; Petaja, Tuukka; Petit, Jean-Eude ...; Pichon, Jean Mar ...; Prokopciuk, Nina; Putaud, Jean-Phi ...; Rodriguez, Sergi ...; Sciare, Jean; Sellegri, Karine; Swietlicki, Erik; Titos, Gloria; Tuch, Thomas; Tunved, Peter; Ulevicius, Vidma ...; Vaishya, Aditya; Vana, Milan; Virkkula, Aki; Vratolis, Stergi ...; Weingartner, Ern ...; Wiedensohler, Al ...; Laj, Paolo; visa färre...

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Av lärosätet: Stockholms universitet; Lunds universitet

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A European aerosol phenomenology-6 : scattering properties of atmospheric aerosol particles from 28 ACTRIS sites

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