New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: A case study in the Fram Strait and Barents Sea
In a warming Arctic the increased occurrence of new particle formation (NPF) is believed to originate from the declining ice coverage during summertime. Understanding the physico-chemical properties of newly formed particles, as well as mechanisms that control both particle formation and growth in t...
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Online Access: | https://oa.tib.eu/renate/handle/123456789/6961 https://doi.org/10.34657/6008 |
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ftleibnizopen:oai:oai.leibnizopen.de:R5AFyYkBdbrxVwz6FYDX 2023-08-27T04:07:09+02:00 New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: A case study in the Fram Strait and Barents Sea Kecorius, Simonas Vogl, Teresa Paasonen, Pauli Lampilahti, Janne Rothenberg, Daniel Wex, Heike Zeppenfeld, Sebastian van Pinxteren, Manuela Hartmann, Markus Henning, Silvia Gong, Xianda Welti, Andre Kulmala, Markku Stratmann, Frank Herrmann, Hartmut Wiedensohler, Alfred 2019 application/pdf https://oa.tib.eu/renate/handle/123456789/6961 https://doi.org/10.34657/6008 eng eng Katlenburg-Lindau : EGU CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ Atmospheric chemistry and physics 19 (2019), Nr. 22 atmospheric chemistry atmospheric modeling cloud condensation nucleus condensation particulate matter trace element vapor pressure Arctic Arctic Ocean Barents Sea Fram Strait 550 article Text 2019 ftleibnizopen https://doi.org/10.34657/6008 2023-08-06T23:30:41Z In a warming Arctic the increased occurrence of new particle formation (NPF) is believed to originate from the declining ice coverage during summertime. Understanding the physico-chemical properties of newly formed particles, as well as mechanisms that control both particle formation and growth in this pristine environment, is important for interpreting aerosol-cloud interactions, to which the Arctic climate can be highly sensitive. In this investigation, we present the analysis of NPF and growth in the high summer Arctic. The measurements were made on-board research vessel Polarstern during the PS106 Arctic expedition. Four distinctive NPF and subsequent particle growth events were observed, during which particle (diameter in a range 10-50 nm) number concentrations increased from background values of approx. 40 up to 4000 cm-3. Based on particle formation and growth rates, as well as hygroscopicity of nucleation and the Aitken mode particles, we distinguished two different types of NPF events. First, some NPF events were favored by negative ions, resulting in more-hygroscopic nucleation mode particles and suggesting sulfuric acid as a precursor gas. Second, other NPF events resulted in less-hygroscopic particles, indicating the influence of organic vapors on particle formation and growth. To test the climatic relevance of NPF and its influence on the cloud condensation nuclei (CCN) budget in the Arctic, we applied a zero-dimensional, adiabatic cloud parcel model. At an updraft velocity of 0.1 m s-1, the particle number size distribution (PNSD) generated during nucleation processes resulted in an increase in the CCN number concentration by a factor of 2 to 5 compared to the background CCN concentrations. This result was confirmed by the directly measured CCN number concentrations. Although particles did not grow beyond 50 nm in diameter and the activated fraction of 15-50 nm particles was on average below 10 %, it could be shown that the sheer number of particles produced by the nucleation process is enough to ... Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Fram Strait LeibnizOpen (The Leibniz Association) Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) Arctic Arctic Ocean Barents Sea |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
atmospheric chemistry atmospheric modeling cloud condensation nucleus condensation particulate matter trace element vapor pressure Arctic Arctic Ocean Barents Sea Fram Strait 550 |
spellingShingle |
atmospheric chemistry atmospheric modeling cloud condensation nucleus condensation particulate matter trace element vapor pressure Arctic Arctic Ocean Barents Sea Fram Strait 550 Kecorius, Simonas Vogl, Teresa Paasonen, Pauli Lampilahti, Janne Rothenberg, Daniel Wex, Heike Zeppenfeld, Sebastian van Pinxteren, Manuela Hartmann, Markus Henning, Silvia Gong, Xianda Welti, Andre Kulmala, Markku Stratmann, Frank Herrmann, Hartmut Wiedensohler, Alfred New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: A case study in the Fram Strait and Barents Sea |
topic_facet |
atmospheric chemistry atmospheric modeling cloud condensation nucleus condensation particulate matter trace element vapor pressure Arctic Arctic Ocean Barents Sea Fram Strait 550 |
description |
In a warming Arctic the increased occurrence of new particle formation (NPF) is believed to originate from the declining ice coverage during summertime. Understanding the physico-chemical properties of newly formed particles, as well as mechanisms that control both particle formation and growth in this pristine environment, is important for interpreting aerosol-cloud interactions, to which the Arctic climate can be highly sensitive. In this investigation, we present the analysis of NPF and growth in the high summer Arctic. The measurements were made on-board research vessel Polarstern during the PS106 Arctic expedition. Four distinctive NPF and subsequent particle growth events were observed, during which particle (diameter in a range 10-50 nm) number concentrations increased from background values of approx. 40 up to 4000 cm-3. Based on particle formation and growth rates, as well as hygroscopicity of nucleation and the Aitken mode particles, we distinguished two different types of NPF events. First, some NPF events were favored by negative ions, resulting in more-hygroscopic nucleation mode particles and suggesting sulfuric acid as a precursor gas. Second, other NPF events resulted in less-hygroscopic particles, indicating the influence of organic vapors on particle formation and growth. To test the climatic relevance of NPF and its influence on the cloud condensation nuclei (CCN) budget in the Arctic, we applied a zero-dimensional, adiabatic cloud parcel model. At an updraft velocity of 0.1 m s-1, the particle number size distribution (PNSD) generated during nucleation processes resulted in an increase in the CCN number concentration by a factor of 2 to 5 compared to the background CCN concentrations. This result was confirmed by the directly measured CCN number concentrations. Although particles did not grow beyond 50 nm in diameter and the activated fraction of 15-50 nm particles was on average below 10 %, it could be shown that the sheer number of particles produced by the nucleation process is enough to ... |
format |
Article in Journal/Newspaper |
author |
Kecorius, Simonas Vogl, Teresa Paasonen, Pauli Lampilahti, Janne Rothenberg, Daniel Wex, Heike Zeppenfeld, Sebastian van Pinxteren, Manuela Hartmann, Markus Henning, Silvia Gong, Xianda Welti, Andre Kulmala, Markku Stratmann, Frank Herrmann, Hartmut Wiedensohler, Alfred |
author_facet |
Kecorius, Simonas Vogl, Teresa Paasonen, Pauli Lampilahti, Janne Rothenberg, Daniel Wex, Heike Zeppenfeld, Sebastian van Pinxteren, Manuela Hartmann, Markus Henning, Silvia Gong, Xianda Welti, Andre Kulmala, Markku Stratmann, Frank Herrmann, Hartmut Wiedensohler, Alfred |
author_sort |
Kecorius, Simonas |
title |
New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: A case study in the Fram Strait and Barents Sea |
title_short |
New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: A case study in the Fram Strait and Barents Sea |
title_full |
New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: A case study in the Fram Strait and Barents Sea |
title_fullStr |
New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: A case study in the Fram Strait and Barents Sea |
title_full_unstemmed |
New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: A case study in the Fram Strait and Barents Sea |
title_sort |
new particle formation and its effect on cloud condensation nuclei abundance in the summer arctic: a case study in the fram strait and barents sea |
publisher |
Katlenburg-Lindau : EGU |
publishDate |
2019 |
url |
https://oa.tib.eu/renate/handle/123456789/6961 https://doi.org/10.34657/6008 |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Aitken Arctic Arctic Ocean Barents Sea |
geographic_facet |
Aitken Arctic Arctic Ocean Barents Sea |
genre |
Arctic Arctic Ocean Barents Sea Fram Strait |
genre_facet |
Arctic Arctic Ocean Barents Sea Fram Strait |
op_source |
Atmospheric chemistry and physics 19 (2019), Nr. 22 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.34657/6008 |
_version_ |
1775347928043356160 |