The Antarctic continent: Quite devoid of ice nucleating particles
In this contribution, we present data on observed concentrations of ice nucleating particles (INP) on the Antarctic continent (N_INP) at some distance from the coast. Data already published for the Southern Ocean suggests low INP concentrations in general. More specific, low concentrations were obse...
Main Authors: | , , , , |
---|---|
Format: | Conference Object |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016910 |
id |
ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5016910 |
---|---|
record_format |
openpolar |
spelling |
ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5016910 2023-10-09T21:46:56+02:00 The Antarctic continent: Quite devoid of ice nucleating particles Wex, H. Henning, S. Mangold, A. Van Overmeiren, P. Stratmann, F. 2023 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016910 eng eng info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-0598 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016910 XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) info:eu-repo/semantics/conferenceObject 2023 ftgfzpotsdam https://doi.org/10.57757/IUGG23-0598 2023-09-17T23:43:20Z In this contribution, we present data on observed concentrations of ice nucleating particles (INP) on the Antarctic continent (N_INP) at some distance from the coast. Data already published for the Southern Ocean suggests low INP concentrations in general. More specific, low concentrations were observed as long as air masses did not have recent contact to continents (with the exception of Antarctica) or islands. It was assumed that Antarctica itself is not a source for INP. Our measurements were done on the Antarctic continent itself, based on filter samples and subsequent off-line analysis at TROPOS, Germany. Filters were collected at the German research station Neumayer during the course of two years, and at the Belgium research station Princess Elisabeth, collected during three austral summers. Altogether low INP concentrations, similar to those reported in recent literature on Southern Ocean INP, were found for all samples, with quasi no contribution of proteinaceous material of biological origin (determined via heating the samples). Similar to work recently done for the Arctic, we propose a temperature dependent parameterization of these data. Conference Object Antarc* Antarctic Antarctica Arctic Southern Ocean GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Antarctic Arctic Austral Neumayer Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
In this contribution, we present data on observed concentrations of ice nucleating particles (INP) on the Antarctic continent (N_INP) at some distance from the coast. Data already published for the Southern Ocean suggests low INP concentrations in general. More specific, low concentrations were observed as long as air masses did not have recent contact to continents (with the exception of Antarctica) or islands. It was assumed that Antarctica itself is not a source for INP. Our measurements were done on the Antarctic continent itself, based on filter samples and subsequent off-line analysis at TROPOS, Germany. Filters were collected at the German research station Neumayer during the course of two years, and at the Belgium research station Princess Elisabeth, collected during three austral summers. Altogether low INP concentrations, similar to those reported in recent literature on Southern Ocean INP, were found for all samples, with quasi no contribution of proteinaceous material of biological origin (determined via heating the samples). Similar to work recently done for the Arctic, we propose a temperature dependent parameterization of these data. |
format |
Conference Object |
author |
Wex, H. Henning, S. Mangold, A. Van Overmeiren, P. Stratmann, F. |
spellingShingle |
Wex, H. Henning, S. Mangold, A. Van Overmeiren, P. Stratmann, F. The Antarctic continent: Quite devoid of ice nucleating particles |
author_facet |
Wex, H. Henning, S. Mangold, A. Van Overmeiren, P. Stratmann, F. |
author_sort |
Wex, H. |
title |
The Antarctic continent: Quite devoid of ice nucleating particles |
title_short |
The Antarctic continent: Quite devoid of ice nucleating particles |
title_full |
The Antarctic continent: Quite devoid of ice nucleating particles |
title_fullStr |
The Antarctic continent: Quite devoid of ice nucleating particles |
title_full_unstemmed |
The Antarctic continent: Quite devoid of ice nucleating particles |
title_sort |
antarctic continent: quite devoid of ice nucleating particles |
publishDate |
2023 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016910 |
geographic |
Antarctic Arctic Austral Neumayer Southern Ocean The Antarctic |
geographic_facet |
Antarctic Arctic Austral Neumayer Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Arctic Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Arctic Southern Ocean |
op_source |
XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-0598 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016910 |
op_doi |
https://doi.org/10.57757/IUGG23-0598 |
_version_ |
1779309552690266112 |