Ice nucleating particles in the Antarctic region
Ice nucleating particles (INPs) are rare but important atmospheric particles as they induce the formation of primary ice in mixed phase clouds and also in some cirrus clouds. A plethora of substances which can be found in atmospheric particles can induce ice nucleation. The most important ice active...
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ftunivgent:oai:archive.ugent.be:8748209 2023-06-11T04:06:25+02:00 Ice nucleating particles in the Antarctic region Wex, Heike Henning, Silvia Mangold, Alexander Van Overmeiren, Preben Zeppenfeld, Sebastian van Pinxteren, Manuela Herrmann, Hartmut Dallosto, Manuel Stratmann, Frank 2022 application/pdf https://biblio.ugent.be/publication/8748209 http://hdl.handle.net/1854/LU-8748209 https://doi.org/10.5194/egusphere-egu22-3796 https://biblio.ugent.be/publication/8748209/file/8758984 eng eng European Geosciences Union https://biblio.ugent.be/publication/8748209 http://hdl.handle.net/1854/LU-8748209 http://dx.doi.org/10.5194/egusphere-egu22-3796 https://biblio.ugent.be/publication/8748209/file/8758984 Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess EGU General Assembly 2022, Abstracts Earth and Environmental Sciences conference info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion 2022 ftunivgent https://doi.org/10.5194/egusphere-egu22-3796 2023-05-10T22:55:30Z Ice nucleating particles (INPs) are rare but important atmospheric particles as they induce the formation of primary ice in mixed phase clouds and also in some cirrus clouds. A plethora of substances which can be found in atmospheric particles can induce ice nucleation. The most important ice active particle types in the atmosphere are assumed to be mineral dust and biological particles, which can originate from a large number of sources. It is hence not surprising that INP concentrations vary over several orders of magnitude at any ice nucleation temperature, with concentrations being typically larger in continental than in marine environments. Although research concerning INP and their global occurrence has seen a steep rise in the past years, global INP concentrations are still not well known, and not all important INP sources are clear, neither are there good parameterizations for describing INP concentrations in models. To increase the knowledge of typical global INP concentrations and to draw conclusions about INP sources, we examined INP concentrations in the Antarctic region, namely at the German research Station Neumayer III, located at shelf ice in close proximity (only some 10 km) to the ice edge, at the Belgian research Station Princess Elisabeth, located roughly 200 km inland and at an altitude of 1390 m, and during a campaign including ship- and land-based data at the Antarctic peninsula. We used our well-established methods of filter collection and off-line analysis with cold-stages to derive INP concentrations in these locations. For Neumayer, two years of data are available. INP concentrations there were generally lower than values derived, e.g., for northern mid latitudes, and they were similar to values published for the Southern Ocean in literature. No pronounced annual cycle was observed. Around and on the Antarctic peninsula, INP concentrations were roughly similar to those observed at Neumayer. However, the Princess Elisabeth station, for which only data obtained during two austral summers ... Conference Object Antarc* Antarctic Antarctic Peninsula Southern Ocean Ghent University Academic Bibliography Antarctic Antarctic Peninsula Austral Neumayer Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences |
spellingShingle |
Earth and Environmental Sciences Wex, Heike Henning, Silvia Mangold, Alexander Van Overmeiren, Preben Zeppenfeld, Sebastian van Pinxteren, Manuela Herrmann, Hartmut Dallosto, Manuel Stratmann, Frank Ice nucleating particles in the Antarctic region |
topic_facet |
Earth and Environmental Sciences |
description |
Ice nucleating particles (INPs) are rare but important atmospheric particles as they induce the formation of primary ice in mixed phase clouds and also in some cirrus clouds. A plethora of substances which can be found in atmospheric particles can induce ice nucleation. The most important ice active particle types in the atmosphere are assumed to be mineral dust and biological particles, which can originate from a large number of sources. It is hence not surprising that INP concentrations vary over several orders of magnitude at any ice nucleation temperature, with concentrations being typically larger in continental than in marine environments. Although research concerning INP and their global occurrence has seen a steep rise in the past years, global INP concentrations are still not well known, and not all important INP sources are clear, neither are there good parameterizations for describing INP concentrations in models. To increase the knowledge of typical global INP concentrations and to draw conclusions about INP sources, we examined INP concentrations in the Antarctic region, namely at the German research Station Neumayer III, located at shelf ice in close proximity (only some 10 km) to the ice edge, at the Belgian research Station Princess Elisabeth, located roughly 200 km inland and at an altitude of 1390 m, and during a campaign including ship- and land-based data at the Antarctic peninsula. We used our well-established methods of filter collection and off-line analysis with cold-stages to derive INP concentrations in these locations. For Neumayer, two years of data are available. INP concentrations there were generally lower than values derived, e.g., for northern mid latitudes, and they were similar to values published for the Southern Ocean in literature. No pronounced annual cycle was observed. Around and on the Antarctic peninsula, INP concentrations were roughly similar to those observed at Neumayer. However, the Princess Elisabeth station, for which only data obtained during two austral summers ... |
format |
Conference Object |
author |
Wex, Heike Henning, Silvia Mangold, Alexander Van Overmeiren, Preben Zeppenfeld, Sebastian van Pinxteren, Manuela Herrmann, Hartmut Dallosto, Manuel Stratmann, Frank |
author_facet |
Wex, Heike Henning, Silvia Mangold, Alexander Van Overmeiren, Preben Zeppenfeld, Sebastian van Pinxteren, Manuela Herrmann, Hartmut Dallosto, Manuel Stratmann, Frank |
author_sort |
Wex, Heike |
title |
Ice nucleating particles in the Antarctic region |
title_short |
Ice nucleating particles in the Antarctic region |
title_full |
Ice nucleating particles in the Antarctic region |
title_fullStr |
Ice nucleating particles in the Antarctic region |
title_full_unstemmed |
Ice nucleating particles in the Antarctic region |
title_sort |
ice nucleating particles in the antarctic region |
publisher |
European Geosciences Union |
publishDate |
2022 |
url |
https://biblio.ugent.be/publication/8748209 http://hdl.handle.net/1854/LU-8748209 https://doi.org/10.5194/egusphere-egu22-3796 https://biblio.ugent.be/publication/8748209/file/8758984 |
geographic |
Antarctic Antarctic Peninsula Austral Neumayer Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Austral Neumayer Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
op_source |
EGU General Assembly 2022, Abstracts |
op_relation |
https://biblio.ugent.be/publication/8748209 http://hdl.handle.net/1854/LU-8748209 http://dx.doi.org/10.5194/egusphere-egu22-3796 https://biblio.ugent.be/publication/8748209/file/8758984 |
op_rights |
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/egusphere-egu22-3796 |
_version_ |
1768378386072207360 |