Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories
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 nuc...
Published in: | Atmospheric Chemistry and Physics |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
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COPERNICUS GESELLSCHAFT MBH
2018
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Subjects: | |
Online Access: | https://edoc.unibas.ch/73985/ https://doi.org/10.5194/acp-18-2853-2018 |
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Open Polar |
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University of Basel: edoc |
op_collection_id |
ftunivbasel |
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unknown |
description |
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, kappa, 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 kappa-Kohler theory to predict CCN number concentrations. The ... |
format |
Article in Journal/Newspaper |
author |
Schmale, Julia Henning, Silvia Decesari, Stefano Henzing, Bas Keskinen, Helmi Sellegri, Karine Ovadnevaite, Jurgita Poehlker, Mira L. Brito, Joel Bougiatioti, Aikaterini Kristensson, Adam Kalivitis, Nikos Stavroulas, Iasonas Carbone, Samara Jefferson, Anne Park, Minsu Schlag, Patrick Iwamoto, Yoko Aalto, Pasi Aijala, Mikko Bukowiecki, Nicolas Ehn, Mikael Frank, Goran Frohlich, Roman Frumau, Arnoud Herrmann, Erik Herrmann, Hartmut Holzinger, Rupert Kos, Gerard Kulmala, Markku Mihalopoulos, Nikolaos Nenes, Athanasios O'Dowd, Colin Petaja, Tuukka Picard, David Poehlker, Christopher Poeschl, Ulrich Poulain, Laurent Prevot, Andre Stephan Henry Swietlicki, Erik Andreae, Meinrat O. Artaxo, Paulo Wiedensohler, Alfred Ogren, John Matsuki, Atsushi Yum, Seong Soo Stratmann, Frank Baltensperger, Urs Gysel, Martin |
spellingShingle |
Schmale, Julia Henning, Silvia Decesari, Stefano Henzing, Bas Keskinen, Helmi Sellegri, Karine Ovadnevaite, Jurgita Poehlker, Mira L. Brito, Joel Bougiatioti, Aikaterini Kristensson, Adam Kalivitis, Nikos Stavroulas, Iasonas Carbone, Samara Jefferson, Anne Park, Minsu Schlag, Patrick Iwamoto, Yoko Aalto, Pasi Aijala, Mikko Bukowiecki, Nicolas Ehn, Mikael Frank, Goran Frohlich, Roman Frumau, Arnoud Herrmann, Erik Herrmann, Hartmut Holzinger, Rupert Kos, Gerard Kulmala, Markku Mihalopoulos, Nikolaos Nenes, Athanasios O'Dowd, Colin Petaja, Tuukka Picard, David Poehlker, Christopher Poeschl, Ulrich Poulain, Laurent Prevot, Andre Stephan Henry Swietlicki, Erik Andreae, Meinrat O. 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 |
author_facet |
Schmale, Julia Henning, Silvia Decesari, Stefano Henzing, Bas Keskinen, Helmi Sellegri, Karine Ovadnevaite, Jurgita Poehlker, Mira L. Brito, Joel Bougiatioti, Aikaterini Kristensson, Adam Kalivitis, Nikos Stavroulas, Iasonas Carbone, Samara Jefferson, Anne Park, Minsu Schlag, Patrick Iwamoto, Yoko Aalto, Pasi Aijala, Mikko Bukowiecki, Nicolas Ehn, Mikael Frank, Goran Frohlich, Roman Frumau, Arnoud Herrmann, Erik Herrmann, Hartmut Holzinger, Rupert Kos, Gerard Kulmala, Markku Mihalopoulos, Nikolaos Nenes, Athanasios O'Dowd, Colin Petaja, Tuukka Picard, David Poehlker, Christopher Poeschl, Ulrich Poulain, Laurent Prevot, Andre Stephan Henry Swietlicki, Erik Andreae, Meinrat O. 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 |
COPERNICUS GESELLSCHAFT MBH |
publishDate |
2018 |
url |
https://edoc.unibas.ch/73985/ https://doi.org/10.5194/acp-18-2853-2018 |
long_lat |
ENVELOPE(155.883,155.883,-81.417,-81.417) |
geographic |
Arctic Mace |
geographic_facet |
Arctic Mace |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Schmale, Julia and Henning, Silvia and Decesari, Stefano and Henzing, Bas and Keskinen, Helmi and Sellegri, Karine and Ovadnevaite, Jurgita and Poehlker, Mira L. and Brito, Joel and Bougiatioti, Aikaterini and Kristensson, Adam and Kalivitis, Nikos and Stavroulas, Iasonas and Carbone, Samara and Jefferson, Anne and Park, Minsu and Schlag, Patrick and Iwamoto, Yoko and Aalto, Pasi and Aijala, Mikko and Bukowiecki, Nicolas and Ehn, Mikael and Frank, Goran and Frohlich, Roman and Frumau, Arnoud and Herrmann, Erik and Herrmann, Hartmut and Holzinger, Rupert and Kos, Gerard and Kulmala, Markku and Mihalopoulos, Nikolaos and Nenes, Athanasios and O'Dowd, Colin and Petaja, Tuukka and Picard, David and Poehlker, Christopher and Poeschl, Ulrich and Poulain, Laurent and Prevot, Andre Stephan Henry and Swietlicki, Erik and Andreae, Meinrat O. and Artaxo, Paulo and Wiedensohler, Alfred and Ogren, John and Matsuki, Atsushi and Yum, Seong Soo and Stratmann, Frank and Baltensperger, Urs and Gysel, Martin. (2018) Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories. ATMOSPHERIC CHEMISTRY AND PHYSICS, 18 (4). pp. 2853-2881. doi:10.5194/acp-18-2853-2018 info:isi/000426312200002 urn:ISSN:1680-7316 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.5194/acp-18-2853-2018 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
18 |
container_issue |
4 |
container_start_page |
2853 |
op_container_end_page |
2881 |
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1766346824367472640 |
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ftunivbasel:oai:edoc.unibas.ch:73985 2023-05-15T15:16:31+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 Poehlker, Mira L. Brito, Joel Bougiatioti, Aikaterini Kristensson, Adam Kalivitis, Nikos Stavroulas, Iasonas Carbone, Samara Jefferson, Anne Park, Minsu Schlag, Patrick Iwamoto, Yoko Aalto, Pasi Aijala, Mikko Bukowiecki, Nicolas Ehn, Mikael Frank, Goran Frohlich, Roman Frumau, Arnoud Herrmann, Erik Herrmann, Hartmut Holzinger, Rupert Kos, Gerard Kulmala, Markku Mihalopoulos, Nikolaos Nenes, Athanasios O'Dowd, Colin Petaja, Tuukka Picard, David Poehlker, Christopher Poeschl, Ulrich Poulain, Laurent Prevot, Andre Stephan Henry Swietlicki, Erik Andreae, Meinrat O. Artaxo, Paulo Wiedensohler, Alfred Ogren, John Matsuki, Atsushi Yum, Seong Soo Stratmann, Frank Baltensperger, Urs Gysel, Martin 2018 https://edoc.unibas.ch/73985/ https://doi.org/10.5194/acp-18-2853-2018 unknown COPERNICUS GESELLSCHAFT MBH Schmale, Julia and Henning, Silvia and Decesari, Stefano and Henzing, Bas and Keskinen, Helmi and Sellegri, Karine and Ovadnevaite, Jurgita and Poehlker, Mira L. and Brito, Joel and Bougiatioti, Aikaterini and Kristensson, Adam and Kalivitis, Nikos and Stavroulas, Iasonas and Carbone, Samara and Jefferson, Anne and Park, Minsu and Schlag, Patrick and Iwamoto, Yoko and Aalto, Pasi and Aijala, Mikko and Bukowiecki, Nicolas and Ehn, Mikael and Frank, Goran and Frohlich, Roman and Frumau, Arnoud and Herrmann, Erik and Herrmann, Hartmut and Holzinger, Rupert and Kos, Gerard and Kulmala, Markku and Mihalopoulos, Nikolaos and Nenes, Athanasios and O'Dowd, Colin and Petaja, Tuukka and Picard, David and Poehlker, Christopher and Poeschl, Ulrich and Poulain, Laurent and Prevot, Andre Stephan Henry and Swietlicki, Erik and Andreae, Meinrat O. and Artaxo, Paulo and Wiedensohler, Alfred and Ogren, John and Matsuki, Atsushi and Yum, Seong Soo and Stratmann, Frank and Baltensperger, Urs and Gysel, Martin. (2018) Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories. ATMOSPHERIC CHEMISTRY AND PHYSICS, 18 (4). pp. 2853-2881. doi:10.5194/acp-18-2853-2018 info:isi/000426312200002 urn:ISSN:1680-7316 info:eu-repo/semantics/closedAccess Article PeerReviewed 2018 ftunivbasel https://doi.org/10.5194/acp-18-2853-2018 2023-03-05T07:23:58Z 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, kappa, 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 kappa-Kohler theory to predict CCN number concentrations. The ... Article in Journal/Newspaper Arctic University of Basel: edoc Arctic Mace ENVELOPE(155.883,155.883,-81.417,-81.417) Atmospheric Chemistry and Physics 18 4 2853 2881 |