Using Novel Molecular-Level Chemical Composition Observations of High Arctic Organic Aerosol for Predictions of Cloud Condensation Nuclei
[Image: see text] Predictions of cloud droplet activation in the late summertime (September) central Arctic Ocean are made using κ-Köhler theory with novel observations of the aerosol chemical composition from a high-resolution time-of-flight chemical ionization mass spectrometer with a filter inlet...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9535938/ http://www.ncbi.nlm.nih.gov/pubmed/36112784 https://doi.org/10.1021/acs.est.2c02162 |
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ftpubmed:oai:pubmedcentral.nih.gov:9535938 2023-05-15T14:48:13+02:00 Using Novel Molecular-Level Chemical Composition Observations of High Arctic Organic Aerosol for Predictions of Cloud Condensation Nuclei Siegel, Karolina Neuberger, Almuth Karlsson, Linn Zieger, Paul Mattsson, Fredrik Duplessis, Patrick Dada, Lubna Daellenbach, Kaspar Schmale, Julia Baccarini, Andrea Krejci, Radovan Svenningsson, Birgitta Chang, Rachel Ekman, Annica M. L. Riipinen, Ilona Mohr, Claudia 2022-09-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9535938/ http://www.ncbi.nlm.nih.gov/pubmed/36112784 https://doi.org/10.1021/acs.est.2c02162 en eng American Chemical Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9535938/ http://www.ncbi.nlm.nih.gov/pubmed/36112784 http://dx.doi.org/10.1021/acs.est.2c02162 © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). CC-BY Environ Sci Technol Text 2022 ftpubmed https://doi.org/10.1021/acs.est.2c02162 2022-10-09T00:56:06Z [Image: see text] Predictions of cloud droplet activation in the late summertime (September) central Arctic Ocean are made using κ-Köhler theory with novel observations of the aerosol chemical composition from a high-resolution time-of-flight chemical ionization mass spectrometer with a filter inlet for gases and aerosols (FIGAERO-CIMS) and an aerosol mass spectrometer (AMS), deployed during the Arctic Ocean 2018 expedition onboard the Swedish icebreaker Oden. We find that the hygroscopicity parameter κ of the total aerosol is 0.39 ± 0.19 (mean ± std). The predicted activation diameter of ∼25 to 130 nm particles is overestimated by 5%, leading to an underestimation of the cloud condensation nuclei (CCN) number concentration by 4–8%. From this, we conclude that the aerosol in the High Arctic late summer is acidic and therefore highly cloud active, with a substantial CCN contribution from Aitken mode particles. Variability in the predicted activation diameter is addressed mainly as a result of uncertainties in the aerosol size distribution measurements. The organic κ was on average 0.13, close to the commonly assumed κ of 0.1, and therefore did not significantly influence the predictions. These conclusions are supported by laboratory experiments of the activation potential of seven organic compounds selected as representative of the measured aerosol. Text Arctic Arctic Ocean oden PubMed Central (PMC) Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) Arctic Arctic Ocean Environmental Science & Technology 56 19 13888 13899 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
description |
[Image: see text] Predictions of cloud droplet activation in the late summertime (September) central Arctic Ocean are made using κ-Köhler theory with novel observations of the aerosol chemical composition from a high-resolution time-of-flight chemical ionization mass spectrometer with a filter inlet for gases and aerosols (FIGAERO-CIMS) and an aerosol mass spectrometer (AMS), deployed during the Arctic Ocean 2018 expedition onboard the Swedish icebreaker Oden. We find that the hygroscopicity parameter κ of the total aerosol is 0.39 ± 0.19 (mean ± std). The predicted activation diameter of ∼25 to 130 nm particles is overestimated by 5%, leading to an underestimation of the cloud condensation nuclei (CCN) number concentration by 4–8%. From this, we conclude that the aerosol in the High Arctic late summer is acidic and therefore highly cloud active, with a substantial CCN contribution from Aitken mode particles. Variability in the predicted activation diameter is addressed mainly as a result of uncertainties in the aerosol size distribution measurements. The organic κ was on average 0.13, close to the commonly assumed κ of 0.1, and therefore did not significantly influence the predictions. These conclusions are supported by laboratory experiments of the activation potential of seven organic compounds selected as representative of the measured aerosol. |
format |
Text |
author |
Siegel, Karolina Neuberger, Almuth Karlsson, Linn Zieger, Paul Mattsson, Fredrik Duplessis, Patrick Dada, Lubna Daellenbach, Kaspar Schmale, Julia Baccarini, Andrea Krejci, Radovan Svenningsson, Birgitta Chang, Rachel Ekman, Annica M. L. Riipinen, Ilona Mohr, Claudia |
spellingShingle |
Siegel, Karolina Neuberger, Almuth Karlsson, Linn Zieger, Paul Mattsson, Fredrik Duplessis, Patrick Dada, Lubna Daellenbach, Kaspar Schmale, Julia Baccarini, Andrea Krejci, Radovan Svenningsson, Birgitta Chang, Rachel Ekman, Annica M. L. Riipinen, Ilona Mohr, Claudia Using Novel Molecular-Level Chemical Composition Observations of High Arctic Organic Aerosol for Predictions of Cloud Condensation Nuclei |
author_facet |
Siegel, Karolina Neuberger, Almuth Karlsson, Linn Zieger, Paul Mattsson, Fredrik Duplessis, Patrick Dada, Lubna Daellenbach, Kaspar Schmale, Julia Baccarini, Andrea Krejci, Radovan Svenningsson, Birgitta Chang, Rachel Ekman, Annica M. L. Riipinen, Ilona Mohr, Claudia |
author_sort |
Siegel, Karolina |
title |
Using Novel Molecular-Level Chemical Composition Observations of High Arctic Organic Aerosol for Predictions of Cloud Condensation Nuclei |
title_short |
Using Novel Molecular-Level Chemical Composition Observations of High Arctic Organic Aerosol for Predictions of Cloud Condensation Nuclei |
title_full |
Using Novel Molecular-Level Chemical Composition Observations of High Arctic Organic Aerosol for Predictions of Cloud Condensation Nuclei |
title_fullStr |
Using Novel Molecular-Level Chemical Composition Observations of High Arctic Organic Aerosol for Predictions of Cloud Condensation Nuclei |
title_full_unstemmed |
Using Novel Molecular-Level Chemical Composition Observations of High Arctic Organic Aerosol for Predictions of Cloud Condensation Nuclei |
title_sort |
using novel molecular-level chemical composition observations of high arctic organic aerosol for predictions of cloud condensation nuclei |
publisher |
American Chemical Society |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9535938/ http://www.ncbi.nlm.nih.gov/pubmed/36112784 https://doi.org/10.1021/acs.est.2c02162 |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Aitken Arctic Arctic Ocean |
geographic_facet |
Aitken Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean oden |
genre_facet |
Arctic Arctic Ocean oden |
op_source |
Environ Sci Technol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9535938/ http://www.ncbi.nlm.nih.gov/pubmed/36112784 http://dx.doi.org/10.1021/acs.est.2c02162 |
op_rights |
© 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1021/acs.est.2c02162 |
container_title |
Environmental Science & Technology |
container_volume |
56 |
container_issue |
19 |
container_start_page |
13888 |
op_container_end_page |
13899 |
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1766319307220844544 |