Ship-based measurements of ice nuclei concentrations over the Arctic, Atlantic, Pacific and Southern oceans
Ambient concentrations of ice-forming particles measured during ship expeditions are collected and summarised with the aim of determining the spatial distribution and variability in ice nuclei in oceanic regions. The presented data from literature and previously unpublished data from over 23 months...
Published in: | Atmospheric Chemistry and Physics |
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Online Access: | http://www.osti.gov/servlets/purl/1751935 https://www.osti.gov/biblio/1751935 https://doi.org/10.5194/acp-20-15191-2020 |
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ftosti:oai:osti.gov:1751935 2023-07-30T03:58:19+02:00 Ship-based measurements of ice nuclei concentrations over the Arctic, Atlantic, Pacific and Southern oceans Welti, André Bigg, E. Keith DeMott, Paul J. Gong, Xianda Hartmann, Markus Harvey, Mike Henning, Silvia Herenz, Paul Hill, Thomas J. Hornblow, Blake Leck, Caroline Löffler, Mareike McCluskey, Christina S. Rauker, Anne Marie Schmale, Julia Tatzelt, Christian van Pinxteren, Manuela Stratmann, Frank 2022-04-01 application/pdf http://www.osti.gov/servlets/purl/1751935 https://www.osti.gov/biblio/1751935 https://doi.org/10.5194/acp-20-15191-2020 unknown http://www.osti.gov/servlets/purl/1751935 https://www.osti.gov/biblio/1751935 https://doi.org/10.5194/acp-20-15191-2020 doi:10.5194/acp-20-15191-2020 54 ENVIRONMENTAL SCIENCES 2022 ftosti https://doi.org/10.5194/acp-20-15191-2020 2023-07-11T09:59:32Z Ambient concentrations of ice-forming particles measured during ship expeditions are collected and summarised with the aim of determining the spatial distribution and variability in ice nuclei in oceanic regions. The presented data from literature and previously unpublished data from over 23 months of ship-based measurements stretch from the Arctic to the Southern Ocean and include a circumnavigation of Antarctica. In comparison to continental observations, ship-based measurements of ambient ice nuclei show 1 to 2 orders of magnitude lower mean concentrations. To quantify the geographical variability in oceanic areas, the concentration range of potential ice nuclei in different climate zones is analysed by meridionally dividing the expedition tracks into tropical, temperate and polar climate zones. We find that concentrations of ice nuclei in these meridional zones follow temperature spectra with similar slopes but vary in absolute concentration. Typically, the frequency with which specific concentrations of ice nuclei are observed at a certain temperature follows a log-normal distribution. A consequence of the log-normal distribution is that the mean concentration is higher than the most frequently measured concentration. Finally, the potential contribution of ship exhaust to the measured ice nuclei concentration on board research vessels is analysed as function of temperature. We find a sharp onset of the influence at approximately -36 °C but none at warmer temperatures that could bias ship-based measurements. Other/Unknown Material Antarc* Antarctica Arctic Southern Ocean SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Southern Ocean Pacific Atmospheric Chemistry and Physics 20 23 15191 15206 |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES |
spellingShingle |
54 ENVIRONMENTAL SCIENCES Welti, André Bigg, E. Keith DeMott, Paul J. Gong, Xianda Hartmann, Markus Harvey, Mike Henning, Silvia Herenz, Paul Hill, Thomas J. Hornblow, Blake Leck, Caroline Löffler, Mareike McCluskey, Christina S. Rauker, Anne Marie Schmale, Julia Tatzelt, Christian van Pinxteren, Manuela Stratmann, Frank Ship-based measurements of ice nuclei concentrations over the Arctic, Atlantic, Pacific and Southern oceans |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
description |
Ambient concentrations of ice-forming particles measured during ship expeditions are collected and summarised with the aim of determining the spatial distribution and variability in ice nuclei in oceanic regions. The presented data from literature and previously unpublished data from over 23 months of ship-based measurements stretch from the Arctic to the Southern Ocean and include a circumnavigation of Antarctica. In comparison to continental observations, ship-based measurements of ambient ice nuclei show 1 to 2 orders of magnitude lower mean concentrations. To quantify the geographical variability in oceanic areas, the concentration range of potential ice nuclei in different climate zones is analysed by meridionally dividing the expedition tracks into tropical, temperate and polar climate zones. We find that concentrations of ice nuclei in these meridional zones follow temperature spectra with similar slopes but vary in absolute concentration. Typically, the frequency with which specific concentrations of ice nuclei are observed at a certain temperature follows a log-normal distribution. A consequence of the log-normal distribution is that the mean concentration is higher than the most frequently measured concentration. Finally, the potential contribution of ship exhaust to the measured ice nuclei concentration on board research vessels is analysed as function of temperature. We find a sharp onset of the influence at approximately -36 °C but none at warmer temperatures that could bias ship-based measurements. |
author |
Welti, André Bigg, E. Keith DeMott, Paul J. Gong, Xianda Hartmann, Markus Harvey, Mike Henning, Silvia Herenz, Paul Hill, Thomas J. Hornblow, Blake Leck, Caroline Löffler, Mareike McCluskey, Christina S. Rauker, Anne Marie Schmale, Julia Tatzelt, Christian van Pinxteren, Manuela Stratmann, Frank |
author_facet |
Welti, André Bigg, E. Keith DeMott, Paul J. Gong, Xianda Hartmann, Markus Harvey, Mike Henning, Silvia Herenz, Paul Hill, Thomas J. Hornblow, Blake Leck, Caroline Löffler, Mareike McCluskey, Christina S. Rauker, Anne Marie Schmale, Julia Tatzelt, Christian van Pinxteren, Manuela Stratmann, Frank |
author_sort |
Welti, André |
title |
Ship-based measurements of ice nuclei concentrations over the Arctic, Atlantic, Pacific and Southern oceans |
title_short |
Ship-based measurements of ice nuclei concentrations over the Arctic, Atlantic, Pacific and Southern oceans |
title_full |
Ship-based measurements of ice nuclei concentrations over the Arctic, Atlantic, Pacific and Southern oceans |
title_fullStr |
Ship-based measurements of ice nuclei concentrations over the Arctic, Atlantic, Pacific and Southern oceans |
title_full_unstemmed |
Ship-based measurements of ice nuclei concentrations over the Arctic, Atlantic, Pacific and Southern oceans |
title_sort |
ship-based measurements of ice nuclei concentrations over the arctic, atlantic, pacific and southern oceans |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1751935 https://www.osti.gov/biblio/1751935 https://doi.org/10.5194/acp-20-15191-2020 |
geographic |
Arctic Southern Ocean Pacific |
geographic_facet |
Arctic Southern Ocean Pacific |
genre |
Antarc* Antarctica Arctic Southern Ocean |
genre_facet |
Antarc* Antarctica Arctic Southern Ocean |
op_relation |
http://www.osti.gov/servlets/purl/1751935 https://www.osti.gov/biblio/1751935 https://doi.org/10.5194/acp-20-15191-2020 doi:10.5194/acp-20-15191-2020 |
op_doi |
https://doi.org/10.5194/acp-20-15191-2020 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
20 |
container_issue |
23 |
container_start_page |
15191 |
op_container_end_page |
15206 |
_version_ |
1772821154147336192 |