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A global analysis of climate-relevant aerosol properties retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories

Paolo Laj 1, 2, 3, * Alessandro Bigi 4 Clémence Rose 5 Elisabeth Andrews 6, 7 Cathrine Lund Myhre 8 Martine Coen 9 Yong Lin 8 Alfred Wiedensohler 10 Michael Schulz 11 John Ogren Markus Fiebig 8 Jonas Gliß Augustin Mortier 11 Marco Pandolfi 12 Tuukka Petäjä 13 Sang-Woo Kim 14 Wenche Aas 8 Jean-Philippe Putaud 15 Olga Mayol-Bracero Melita Keywood Lorenzo Labrador Pasi Aalto Erik Ahlberg Lucas Arboledas Andrés Alastuey Marcos Andrade 16 Begona Artinano 17 Stina Ausmeel Todor Arsov Eija Asmi 18 John Backman Urs Baltensperger 19 Susanne Bastian Olaf Bath Johan Beukes Benjamin Brem Nicolas Bukowiecki 20 Sébastien Conil 21 Cedric Couret Derek Day Wan Dayantolis Anna Degorska 22 Konstantinos Eleftheriadis 23 Prodromos Fetfatzis 24 Olivier Favez 25 Harald Flentje 26 Maria Gini 27 Asta Gregorič Martin Gysel-Beer A Hallar Jenny Hand Andras Hoffer Christoph Hueglin 28 Rakesh Hooda Antti Hyvärinen 29 Ivo Kalapov 30 Nikos Kalivitis 31 Anne Kasper-Giebl 32 Jeong Kim Giorgos Kouvarakis 33 Irena Kranjc Radovan Krejci 34 Markku Kulmala Casper Labuschagne 35 Hae-Jung Lee Heikki Lihavainen 18 Neng-Huei Lin Gunter Löschau Krista Luoma Angela Marinoni Sebastiao Martins 36 Dos Santos Frank Meinhardt Maik Merkel Jean-Marc Metzger 37 Nikolaos Mihalopoulos 38 Nhat Nguyen Jakub Ondracek Noemi Pérez Maria Perrone Jean-Eudes Petit 39 David Picard 5 Jean-Marc Pichon 5 Véronique Pont 40 Natalia Prats Anthony Prenni Fabienne Reisen Salvatore Romano Karine Sellegri Sangeeta Sharma 41 Gerhard Schauer Patrick Sheridan James Sherman Maik Schütze Andreas Schwerin Ralf Sohmer Martin Steinbacher 28 Junying Sun Gloria Titos Barbara Toczko Thomas Tuch Pierre Tulet 42 Peter Tunved 43 Ville Vakkari Fernando Velarde 16 Patricio Velasquez Paolo Villani Sterios Vratolis 23 Sheng-Hsiang Wang Kay Weinhold Rolf Weller 44 Margarita Yela 45 Jesus Yus-Diez Vladimir Zdimal Paul Zieger 46 Nadezda Zikova
* Corresponding author
1 IGE - Institut des Géosciences de l’Environnement
2 CNR - National Research Council of Italy
3 INAR - Institute for Atmospheric and Earth System Research
4 Università degli Studi di Modena e Reggio Emilia
5 LaMP - Laboratoire de Météorologie Physique - Clermont Auvergne
6 CIRES - Cooperative Institute for Research in Environmental Sciences
7 ESRL - NOAA Earth System Research Laboratory
8 NILU - Norwegian Institute for Air Research
9 Federal Office of Meteorology and Climatology MeteoSwiss
10 TROPOS - Leibniz Institute for Tropospheric Research
11 Norwegian Meteorological Institute
12 IDAEA - Institute of Environmental Assessment and Water Research
13 University of Helsinki
14 SEES - School of Earth and Environmental Sciences [Seoul]
15 IES - JRC Institute for Environment and Sustainability
16 UMSA - Universidad Mayor de San Andrés
17 CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid]
18 FMI - Finnish Meteorological Institute
19 PSI - Paul Scherrer Institute
20 LAC - Laboratory of Atmospheric Chemistry [Paul Scherrer Institute]
21 ANDRA - Agence Nationale pour la Gestion des Déchets Radioactifs
22 IOS-PIB - Iinstitute of Environmental Protection - National Research Institute
23 ERL - Environmental Radioactivity laboratory
24 National Centre for Scientific Research Demokritos
25 INERIS - Institut National de l'Environnement Industriel et des Risques
26 DWD - Deutscher Wetterdienst [Offenbach]
27 Department of Computer Science and Engineering [Minneapolis]
28 EMPA - Swiss Federal Laboratories for Materials Science and Technology [Dübendorf]
29 Arctic Space Centre [Helsinki]
30 BAS - Bulgarian Academy of Sciences
31 UOC - University of Crete [Heraklion]
32 Institute for Chemical Technologies and Analytics
33 ECPL - Environmental Chemical Processes Laboratory [Heraklion]
34 ACES - Department of Environmental Science and Analytical Chemistry [Stockholm]
35 SAWS - South African Weather Service
36 Department of Medicine [New York]
37 OSU-Réunion - Observatoire des Sciences de l'Univers de La Réunion
38 IERSD - Institute for Environmental Research and Sustainable Development
39 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
40 LA - Laboratoire d'aérologie
41 NCEO - NERC National Centre for Earth Observation
42 LACy - Laboratoire de l'Atmosphère et des Cyclones
43 Institute for Applied Environmental Research [Stockholm]
44 AWI - Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
45 INTA - Instituto Nacional de Técnica Aeroespacial
46 Stockholm University
Abstract : Aerosol particles are essential constituents of the Earth's atmosphere, impacting the earth radiation balance directly by scattering and absorbing solar radiation, and indirectly by acting as cloud condensation nuclei. In contrast to most greenhouse gases, aerosol particles have short atmospheric residence times, resulting in a highly heterogeneous distribution in space and time. There is a clear need to document this variability at regional scale through observations involving, in particular, the in situ near-surface segment of the atmospheric observation system. This paper will provide the widest effort so far to document variability of climate-relevant in situ aerosol properties (namely wavelength dependent particle light scattering and absorption coefficients, particle number concentration and particle number size distribution) from all sites connected to the Global Atmosphere Watch network. High-quality data from almost 90 stations worldwide have been collected and controlled for quality and are reported for a reference year in 2017, providing a very extended and robust view of the variability of these variables worldwide. The range of variability observed worldwide for light scattering and absorption coefficients, single-scattering albedo, and particle number concentration are presented together with preliminary information on their long-term trends and comparison with model simulation for the different stations. The scope of the present paper is also to provide the necessary suite of information, including data provision procedures, quality control and analysis, data policy, and usage of the ground-based aerosol measurement network. It delivers to users of the World Data Centre on Aerosol, the required confidence in data products in the form of a fully characterized value chain, including uncertainty estimation and requirements for contributing to the global climate monitoring system.
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Paolo Laj, Alessandro Bigi, Clémence Rose, Elisabeth Andrews, Cathrine Lund Myhre, et al.. A global analysis of climate-relevant aerosol properties retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories. Atmospheric Measurement Techniques, European Geosciences Union, 2020, 13, pp.4353 - 4392. ⟨10.5194/amt-13-4353-2020⟩. ⟨hal-02923802⟩

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