Ionic content in an ice core from the West Antarctic Ice Sheet: 1882-2008 A.D.
ABSTRACT: The study of atmospheric aerosols through polar ice cores is one of the most common and robust tools for the investigation of past changes in the circulation and chemistry of the atmosphere. Only a few subannual resolution records are available for the development of paleochemical and envi...
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ftjscielo:oai:scielo:S2317-48892018000400853 2023-05-15T13:46:05+02:00 Ionic content in an ice core from the West Antarctic Ice Sheet: 1882-2008 A.D. Thoen,Isaías Ullmann Simões,Jefferson Cardia Lindau,Filipe Gaudie Ley Sneed,Sharon Buchanan 2018-12-01 text/html http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892018000400853 en eng Sociedade Brasileira de Geologia 10.1590/2317-4889201820180037 info:eu-repo/semantics/openAccess Brazilian Journal of Geology v.48 n.4 2018 aerosols ice core West Antarctic Ice Sheet trace analysis ion chromatography info:eu-repo/semantics/article 2018 ftjscielo 2019-01-31T09:15:15Z ABSTRACT: The study of atmospheric aerosols through polar ice cores is one of the most common and robust tools for the investigation of past changes in the circulation and chemistry of the atmosphere. Only a few subannual resolution records are available for the development of paleochemical and environmental interpretations. Here, we report the ionic content record for the period of 1882-2008 A.D. in an ice core recovered at the ice divide of the West Antarctic Ice Sheet. The ion concentrations found in the core were determined by ion chromatography on more than 2,000 samples and the basic statistics were calculated for major inorganic and organic ions. The dating of the core layers was based on the seasonality of SO 4 2- , NO 3 - , and Na + , checked by the identification of the Krakatau (1883), Agung (1963) and Pinatubo/Hudson (1991) volcanic eruption signals. Significant aerosol input events were identified and grouped considering the ions present, their provenance and the season. The ionic balance, together with the decomposition of some origin indicators, showed that 36% of the ionic charge is derived from sea salt aerosols, 13% from mineral dust, and 17% from biogenic marine activity, while 34% are mainly products of chemical reactivity in the atmosphere. Article in Journal/Newspaper Antarc* Antarctic ice core Ice Sheet SciELO Brazil (Scientific Electronic Library Online) Antarctic West Antarctic Ice Sheet Hudson |
institution |
Open Polar |
collection |
SciELO Brazil (Scientific Electronic Library Online) |
op_collection_id |
ftjscielo |
language |
English |
topic |
aerosols ice core West Antarctic Ice Sheet trace analysis ion chromatography |
spellingShingle |
aerosols ice core West Antarctic Ice Sheet trace analysis ion chromatography Thoen,Isaías Ullmann Simões,Jefferson Cardia Lindau,Filipe Gaudie Ley Sneed,Sharon Buchanan Ionic content in an ice core from the West Antarctic Ice Sheet: 1882-2008 A.D. |
topic_facet |
aerosols ice core West Antarctic Ice Sheet trace analysis ion chromatography |
description |
ABSTRACT: The study of atmospheric aerosols through polar ice cores is one of the most common and robust tools for the investigation of past changes in the circulation and chemistry of the atmosphere. Only a few subannual resolution records are available for the development of paleochemical and environmental interpretations. Here, we report the ionic content record for the period of 1882-2008 A.D. in an ice core recovered at the ice divide of the West Antarctic Ice Sheet. The ion concentrations found in the core were determined by ion chromatography on more than 2,000 samples and the basic statistics were calculated for major inorganic and organic ions. The dating of the core layers was based on the seasonality of SO 4 2- , NO 3 - , and Na + , checked by the identification of the Krakatau (1883), Agung (1963) and Pinatubo/Hudson (1991) volcanic eruption signals. Significant aerosol input events were identified and grouped considering the ions present, their provenance and the season. The ionic balance, together with the decomposition of some origin indicators, showed that 36% of the ionic charge is derived from sea salt aerosols, 13% from mineral dust, and 17% from biogenic marine activity, while 34% are mainly products of chemical reactivity in the atmosphere. |
format |
Article in Journal/Newspaper |
author |
Thoen,Isaías Ullmann Simões,Jefferson Cardia Lindau,Filipe Gaudie Ley Sneed,Sharon Buchanan |
author_facet |
Thoen,Isaías Ullmann Simões,Jefferson Cardia Lindau,Filipe Gaudie Ley Sneed,Sharon Buchanan |
author_sort |
Thoen,Isaías Ullmann |
title |
Ionic content in an ice core from the West Antarctic Ice Sheet: 1882-2008 A.D. |
title_short |
Ionic content in an ice core from the West Antarctic Ice Sheet: 1882-2008 A.D. |
title_full |
Ionic content in an ice core from the West Antarctic Ice Sheet: 1882-2008 A.D. |
title_fullStr |
Ionic content in an ice core from the West Antarctic Ice Sheet: 1882-2008 A.D. |
title_full_unstemmed |
Ionic content in an ice core from the West Antarctic Ice Sheet: 1882-2008 A.D. |
title_sort |
ionic content in an ice core from the west antarctic ice sheet: 1882-2008 a.d. |
publisher |
Sociedade Brasileira de Geologia |
publishDate |
2018 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892018000400853 |
geographic |
Antarctic West Antarctic Ice Sheet Hudson |
geographic_facet |
Antarctic West Antarctic Ice Sheet Hudson |
genre |
Antarc* Antarctic ice core Ice Sheet |
genre_facet |
Antarc* Antarctic ice core Ice Sheet |
op_source |
Brazilian Journal of Geology v.48 n.4 2018 |
op_relation |
10.1590/2317-4889201820180037 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766236567083417600 |