Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories
International audience Aerosol–cloud interactions (ACI) constitute the single largest uncertainty in anthropogenic radiative forcing. To reduce the uncertainties and gain more confidence in the simulation of ACI, models need to be evaluated against observations , in particular against measurements o...
Published in: | Atmospheric Chemistry and Physics |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2018
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Online Access: | https://doi.org/10.5194/acp-18-2853-2018 https://hal.uca.fr/hal-01836076/file/2018_Schmale.pdf https://hal.uca.fr/hal-01836076 |
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English |
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geo envir Schmale, Julia Henning, Silvia Decesari, Stefano Henzing, Bas Keskinen, Helmi Sellegri, Karine Ovadnevaite, Jurgita Pöhlker, Mira, Brito, Joel Bougiatioti, Aikaterini Kristensson, Adam Kalivitis, Nikos Stavroulas, Iasonas Carbone, Samara Jefferson, Anne Park, Minsu Schlag, Patrick Iwamoto, Yoko Aalto, Pasi Äijälä, Mikko Bukowiecki, Nicolas Ehn, Mikael Frank, Göran Fröhlich, Roman Frumau, Arnoud Herrmann, Erik HERRMANN, HARTMUT Holzinger, Rupert Kos, Gerard Kulmala, Markku Mihalopoulos, Nikolaos Nenes, Athanasios O 'dowd, Colin, Petäjä, Tuukka Picard, David Pöhlker, Christopher Pöschl, Ulrich Poulain, Laurent Prévôt, André Stephan Henry Swietlicki, Erik Andreae, Meinrat, Artaxo, Paulo Wiedensohler, Alfred Ogren, John Matsuki, Atsushi Yum, Seong Soo Stratmann, Frank Baltensperger, Urs Gysel, Martin Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories |
topic_facet |
geo envir |
description |
International audience Aerosol–cloud interactions (ACI) constitute the single largest uncertainty in anthropogenic radiative forcing. To reduce the uncertainties and gain more confidence in the simulation of ACI, models need to be evaluated against observations , in particular against measurements of cloud condensation nuclei (CCN). Here we present a data set – ready to be used for model validation – of long-term observations of CCN number concentrations, particle number size distributions and chemical composition from 12 sites on 3 continents. Studied environments include coastal background, rural background, alpine sites, remote forests and an urban surrounding. Expectedly, CCN characteristics are highly variable across site categories. However, they also vary within them, most strongly in the coastal background group, where CCN number concentrations can vary by up to a factor of 30 within one season. In terms of particle activation behaviour, most continental stations exhibit very similar activation ratios (relative to particles > 20 nm) across the range of 0.1 to 1.0 % supersaturation. At the coastal sites the transition from particles being CCN inactive to becoming CCN active occurs over a wider range of the supersaturation spectrum. Several stations show strong seasonal cycles of CCN number concentrations and particle number size distributions, e.g. at Barrow (Arctic haze in spring), at the alpine stations (stronger influence of polluted boundary layer air masses in summer), the rain forest (wet and dry season) or Finokalia (wildfire influence in autumn). The rural background and urban sites exhibit relatively little variability throughout the year, while short-term variability can be high especially at the urban site. The average hygroscopicity parameter, κ, calculated from the chemical composition of submicron particles was highest at the coastal site of Mace Head (0.6) and lowest at the rain forest station ATTO (0.2–0.3). We performed closure studies based on κ–Köhler theory to predict CCN number ... |
author2 |
Max Planck Institute for Chemistry (MPIC) Max-Planck-Gesellschaft CNR Institute of Atmospheric Sciences and Climate (ISAC) Consiglio Nazionale delle Ricerche (CNR) Laboratoire de Météorologie Physique (LaMP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Centre National de la Recherche Scientifique (CNRS) Paul Scherrer Institute (PSI) |
format |
Article in Journal/Newspaper |
author |
Schmale, Julia Henning, Silvia Decesari, Stefano Henzing, Bas Keskinen, Helmi Sellegri, Karine Ovadnevaite, Jurgita Pöhlker, Mira, Brito, Joel Bougiatioti, Aikaterini Kristensson, Adam Kalivitis, Nikos Stavroulas, Iasonas Carbone, Samara Jefferson, Anne Park, Minsu Schlag, Patrick Iwamoto, Yoko Aalto, Pasi Äijälä, Mikko Bukowiecki, Nicolas Ehn, Mikael Frank, Göran Fröhlich, Roman Frumau, Arnoud Herrmann, Erik HERRMANN, HARTMUT Holzinger, Rupert Kos, Gerard Kulmala, Markku Mihalopoulos, Nikolaos Nenes, Athanasios O 'dowd, Colin, Petäjä, Tuukka Picard, David Pöhlker, Christopher Pöschl, Ulrich Poulain, Laurent Prévôt, André Stephan Henry Swietlicki, Erik Andreae, Meinrat, Artaxo, Paulo Wiedensohler, Alfred Ogren, John Matsuki, Atsushi Yum, Seong Soo Stratmann, Frank Baltensperger, Urs Gysel, Martin |
author_facet |
Schmale, Julia Henning, Silvia Decesari, Stefano Henzing, Bas Keskinen, Helmi Sellegri, Karine Ovadnevaite, Jurgita Pöhlker, Mira, Brito, Joel Bougiatioti, Aikaterini Kristensson, Adam Kalivitis, Nikos Stavroulas, Iasonas Carbone, Samara Jefferson, Anne Park, Minsu Schlag, Patrick Iwamoto, Yoko Aalto, Pasi Äijälä, Mikko Bukowiecki, Nicolas Ehn, Mikael Frank, Göran Fröhlich, Roman Frumau, Arnoud Herrmann, Erik HERRMANN, HARTMUT Holzinger, Rupert Kos, Gerard Kulmala, Markku Mihalopoulos, Nikolaos Nenes, Athanasios O 'dowd, Colin, Petäjä, Tuukka Picard, David Pöhlker, Christopher Pöschl, Ulrich Poulain, Laurent Prévôt, André Stephan Henry Swietlicki, Erik Andreae, Meinrat, Artaxo, Paulo Wiedensohler, Alfred Ogren, John Matsuki, Atsushi Yum, Seong Soo Stratmann, Frank Baltensperger, Urs Gysel, Martin |
author_sort |
Schmale, Julia |
title |
Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories |
title_short |
Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories |
title_full |
Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories |
title_fullStr |
Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories |
title_full_unstemmed |
Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories |
title_sort |
long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-18-2853-2018 https://hal.uca.fr/hal-01836076/file/2018_Schmale.pdf https://hal.uca.fr/hal-01836076 |
long_lat |
ENVELOPE(155.883,155.883,-81.417,-81.417) |
geographic |
Arctic Mace |
geographic_facet |
Arctic Mace |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics Atmospheric Chemistry and Physics, European Geosciences Union, 2018, 18 (4), pp.2853 - 2881. ⟨10.5194/acp-18-2853-2018⟩ |
op_relation |
hal-01836076 doi:10.5194/acp-18-2853-2018 10670/1.3kxph6 https://hal.uca.fr/hal-01836076/file/2018_Schmale.pdf https://hal.uca.fr/hal-01836076 |
op_rights |
other |
op_doi |
https://doi.org/10.5194/acp-18-2853-2018 |
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Atmospheric Chemistry and Physics |
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18 |
container_issue |
4 |
container_start_page |
2853 |
op_container_end_page |
2881 |
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fttriple:oai:gotriple.eu:10670/1.3kxph6 2023-05-15T15:15:00+02:00 Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories Schmale, Julia Henning, Silvia Decesari, Stefano Henzing, Bas Keskinen, Helmi Sellegri, Karine Ovadnevaite, Jurgita Pöhlker, Mira, Brito, Joel Bougiatioti, Aikaterini Kristensson, Adam Kalivitis, Nikos Stavroulas, Iasonas Carbone, Samara Jefferson, Anne Park, Minsu Schlag, Patrick Iwamoto, Yoko Aalto, Pasi Äijälä, Mikko Bukowiecki, Nicolas Ehn, Mikael Frank, Göran Fröhlich, Roman Frumau, Arnoud Herrmann, Erik HERRMANN, HARTMUT Holzinger, Rupert Kos, Gerard Kulmala, Markku Mihalopoulos, Nikolaos Nenes, Athanasios O 'dowd, Colin, Petäjä, Tuukka Picard, David Pöhlker, Christopher Pöschl, Ulrich Poulain, Laurent Prévôt, André Stephan Henry Swietlicki, Erik Andreae, Meinrat, Artaxo, Paulo Wiedensohler, Alfred Ogren, John Matsuki, Atsushi Yum, Seong Soo Stratmann, Frank Baltensperger, Urs Gysel, Martin Max Planck Institute for Chemistry (MPIC) Max-Planck-Gesellschaft CNR Institute of Atmospheric Sciences and Climate (ISAC) Consiglio Nazionale delle Ricerche (CNR) Laboratoire de Météorologie Physique (LaMP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Centre National de la Recherche Scientifique (CNRS) Paul Scherrer Institute (PSI) 2018-01-01 https://doi.org/10.5194/acp-18-2853-2018 https://hal.uca.fr/hal-01836076/file/2018_Schmale.pdf https://hal.uca.fr/hal-01836076 en eng HAL CCSD European Geosciences Union hal-01836076 doi:10.5194/acp-18-2853-2018 10670/1.3kxph6 https://hal.uca.fr/hal-01836076/file/2018_Schmale.pdf https://hal.uca.fr/hal-01836076 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics Atmospheric Chemistry and Physics, European Geosciences Union, 2018, 18 (4), pp.2853 - 2881. ⟨10.5194/acp-18-2853-2018⟩ geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/acp-18-2853-2018 2023-01-22T16:52:37Z International audience Aerosol–cloud interactions (ACI) constitute the single largest uncertainty in anthropogenic radiative forcing. To reduce the uncertainties and gain more confidence in the simulation of ACI, models need to be evaluated against observations , in particular against measurements of cloud condensation nuclei (CCN). Here we present a data set – ready to be used for model validation – of long-term observations of CCN number concentrations, particle number size distributions and chemical composition from 12 sites on 3 continents. Studied environments include coastal background, rural background, alpine sites, remote forests and an urban surrounding. Expectedly, CCN characteristics are highly variable across site categories. However, they also vary within them, most strongly in the coastal background group, where CCN number concentrations can vary by up to a factor of 30 within one season. In terms of particle activation behaviour, most continental stations exhibit very similar activation ratios (relative to particles > 20 nm) across the range of 0.1 to 1.0 % supersaturation. At the coastal sites the transition from particles being CCN inactive to becoming CCN active occurs over a wider range of the supersaturation spectrum. Several stations show strong seasonal cycles of CCN number concentrations and particle number size distributions, e.g. at Barrow (Arctic haze in spring), at the alpine stations (stronger influence of polluted boundary layer air masses in summer), the rain forest (wet and dry season) or Finokalia (wildfire influence in autumn). The rural background and urban sites exhibit relatively little variability throughout the year, while short-term variability can be high especially at the urban site. The average hygroscopicity parameter, κ, calculated from the chemical composition of submicron particles was highest at the coastal site of Mace Head (0.6) and lowest at the rain forest station ATTO (0.2–0.3). We performed closure studies based on κ–Köhler theory to predict CCN number ... Article in Journal/Newspaper Arctic Unknown Arctic Mace ENVELOPE(155.883,155.883,-81.417,-81.417) Atmospheric Chemistry and Physics 18 4 2853 2881 |