Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Douglas B Collins
  • Julia Burkart
  • Rachel Y-W Chang
  • Martine Lizotte
  • Aude Boivin-Rioux
  • Marjolaine Blais
  • Emma L Mungall
  • Matthew Boyer
  • Victoria E Irish
  • Guillaume Masse
  • Daniel Kunkel
  • Jean-Eric Tremblay
  • Tim Papakyriakou
  • Allan K Bertram
  • Heiko Bozem
  • Michel Gosselin
  • Maurice Levasseur
  • Jonathan PD Abbatt
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000414601800002&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.5194/acp-17-13119-2017
eISSN
1680-7324
Externe Identifier
  • Clarivate Analytics Document Solution ID: FL9TR
ISSN
1680-7316
Ausgabe der Veröffentlichung
21
Zeitschrift
ATMOSPHERIC CHEMISTRY AND PHYSICS
Paginierung
13119 - 13138
Datum der Veröffentlichung
2017
Status
Published
Titel
Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments
Sub types
  • Article
Ausgabe der Zeitschrift
17

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:p>Abstract. The source strength and capability of aerosol particles in the Arctic to act as cloud condensation nuclei have important implications for understanding the indirect aerosol–cloud effect within the polar climate system. It has been shown in several Arctic regions that ultrafine particle (UFP) formation and growth is a key contributor to aerosol number concentrations during the summer. This study uses aerosol number size distribution measurements from shipboard expeditions aboard the research icebreaker CCGS Amundsen in the summers of 2014 and 2016 throughout the Canadian Arctic to gain a deeper understanding of the drivers of UFP formation and growth within this marine boundary layer. UFP number concentrations (diameter &gt; 4 nm) in the range of 101–104 cm−3 were observed during the two seasons, with concentrations greater than 103 cm−3 occurring more frequently in 2016. Higher concentrations in 2016 were associated with UFP formation and growth, with events occurring on 41 % of days, while events were only observed on 6 % of days in 2014. Assessment of relevant parameters for aerosol nucleation showed that the median condensation sink in this region was approximately 1.2 h−1 in 2016 and 2.2 h−1 in 2014, which lie at the lower end of ranges observed at even the most remote stations reported in the literature. Apparent growth rates of all observed events in both expeditions averaged 4.3 ± 4.1 nm h−1, in general agreement with other recent studies at similar latitudes. Higher solar radiation, lower cloud fractions, and lower sea ice concentrations combined with differences in the developmental stage and activity of marine microbial communities within the Canadian Arctic were documented and help explain differences between the aerosol measurements made during the 2014 and 2016 expeditions. These findings help to motivate further studies of biosphere–atmosphere interactions within the Arctic marine environment to explain the production of UFP and their growth to sizes relevant for cloud droplet activation. </jats:p>
Autoren
  • Douglas B Collins
  • Julia Burkart
  • Rachel Y-W Chang
  • Martine Lizotte
  • Aude Boivin-Rioux
  • Marjolaine Blais
  • Emma L Mungall
  • Matthew Boyer
  • Victoria E Irish
  • Guillaume Massé
  • Daniel Kunkel
  • Jean-Éric Tremblay
  • Tim Papakyriakou
  • Allan K Bertram
  • Heiko Bozem
  • Michel Gosselin
  • Maurice Levasseur
  • Jonathan PD Abbatt
DOI
10.5194/acp-17-13119-2017
eISSN
1680-7324
Ausgabe der Veröffentlichung
21
Zeitschrift
Atmospheric Chemistry and Physics
Sprache
en
Online publication date
2017
Paginierung
13119 - 13138
Status
Published online
Herausgeber
Copernicus GmbH
Herausgeber URL
http://dx.doi.org/10.5194/acp-17-13119-2017
Datum der Datenerfassung
2020
Titel
Frequent ultrafine particle formation and growth in Canadian Arctic marine and coastal environments
Ausgabe der Zeitschrift
17

Datenquelle: Crossref

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