Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean
Sulfate (SO42-) and ammonium (NH4+) flux records over the last 150,000 years from both Antarctic EPICA ice cores (European Project for Ice Coring in Antarctica) are presented. The ice core record from Dome C is influenced by the Indian sector of the Southern Ocean (SO), whereas Dronning Maud Land is...
Published in: | Quaternary Science Reviews |
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Pergamon-Elsevier
2010
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Online Access: | http://nora.nerc.ac.uk/id/eprint/10542/ http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6VBC-4XTYD52-2-1&_cdi=5923&_user=1773399&_pii=S0277379109003722&_orig=browse&_coverDate=01%2F31%2F2010&_sk=999709998&view=c&wchp=dGLzVtz-zSkzS&md5=bba54b85b629f46f833bbcd46988476f&ie=/sdarticle.pdf |
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ftnerc:oai:nora.nerc.ac.uk:10542 2023-05-15T13:45:10+02:00 Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean Kaufmann, Patrik Fundel, Felix Fischer, Hubertus Bigler, Matthias Ruth, Urs Udisti, Roberto Hansson, Margareta De Angelis, Martine Barbante, Carlo Wolff, Eric W. Hutterli, Manuel Wagenbach, Dietmar 2010 http://nora.nerc.ac.uk/id/eprint/10542/ http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6VBC-4XTYD52-2-1&_cdi=5923&_user=1773399&_pii=S0277379109003722&_orig=browse&_coverDate=01%2F31%2F2010&_sk=999709998&view=c&wchp=dGLzVtz-zSkzS&md5=bba54b85b629f46f833bbcd46988476f&ie=/sdarticle.pdf unknown Pergamon-Elsevier Kaufmann, Patrik; Fundel, Felix; Fischer, Hubertus; Bigler, Matthias; Ruth, Urs; Udisti, Roberto; Hansson, Margareta; De Angelis, Martine; Barbante, Carlo; Wolff, Eric W.; Hutterli, Manuel; Wagenbach, Dietmar. 2010 Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean. Quaternary Science Reviews, 29 (1-2). 313-323. https://doi.org/10.1016/j.quascirev.2009.11.009 <https://doi.org/10.1016/j.quascirev.2009.11.009> Glaciology Chemistry Publication - Article PeerReviewed 2010 ftnerc https://doi.org/10.1016/j.quascirev.2009.11.009 2023-02-04T19:26:45Z Sulfate (SO42-) and ammonium (NH4+) flux records over the last 150,000 years from both Antarctic EPICA ice cores (European Project for Ice Coring in Antarctica) are presented. The ice core record from Dome C is influenced by the Indian sector of the Southern Ocean (SO), whereas Dronning Maud Land is facing the Atlantic sector. Generally, they reflect the past atmospheric aerosol load and, thus, potentially reveal the fingerprint of marine biogenic sources from the SO. The most important feature of both, the nssSO(4)(2-) as well as NH4+ flux records, is the absence of any significant glacial cycles, in contrary to the distinct transitions for mineral dust and sea salt aerosol over the last 150,000 years. This finding challenges the iron fertilization hypothesis on long time scales, as the significant changes in dust, e.g. from the last glacial maximum toward the Holocene have neither an impact on nssSO(4)(2-) nor on NH4+ fluxes found in interior Antarctica. The inter-site correlation of both species is weak, r(2) = 0.42 for the nssSO(4)(2-) flux and r(2) = 0.12 for the NH4+ flux respectively, emphasizing the local Source characteristics of biogenic aerosol from the SO. Millennial variability in NH4+ and nssSO(4)(2-) is within the uncertainty of our flux estimates. Correlation with mineral dust and sea ice derived sodium shows only a very weak influence of dust deposition on those insignificant changes in nssSO(4)(2-) flux for the Atlantic sector of the Southern Ocean, but also small transport changes or terrigeneous sulfate contributions may contribute to those variations at EDML. (C) 2009 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctica Dronning Maud Land EPICA ice core Sea ice Southern Ocean Natural Environment Research Council: NERC Open Research Archive Antarctic Dronning Maud Land Indian Southern Ocean Quaternary Science Reviews 29 1-2 313 323 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Glaciology Chemistry |
spellingShingle |
Glaciology Chemistry Kaufmann, Patrik Fundel, Felix Fischer, Hubertus Bigler, Matthias Ruth, Urs Udisti, Roberto Hansson, Margareta De Angelis, Martine Barbante, Carlo Wolff, Eric W. Hutterli, Manuel Wagenbach, Dietmar Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean |
topic_facet |
Glaciology Chemistry |
description |
Sulfate (SO42-) and ammonium (NH4+) flux records over the last 150,000 years from both Antarctic EPICA ice cores (European Project for Ice Coring in Antarctica) are presented. The ice core record from Dome C is influenced by the Indian sector of the Southern Ocean (SO), whereas Dronning Maud Land is facing the Atlantic sector. Generally, they reflect the past atmospheric aerosol load and, thus, potentially reveal the fingerprint of marine biogenic sources from the SO. The most important feature of both, the nssSO(4)(2-) as well as NH4+ flux records, is the absence of any significant glacial cycles, in contrary to the distinct transitions for mineral dust and sea salt aerosol over the last 150,000 years. This finding challenges the iron fertilization hypothesis on long time scales, as the significant changes in dust, e.g. from the last glacial maximum toward the Holocene have neither an impact on nssSO(4)(2-) nor on NH4+ fluxes found in interior Antarctica. The inter-site correlation of both species is weak, r(2) = 0.42 for the nssSO(4)(2-) flux and r(2) = 0.12 for the NH4+ flux respectively, emphasizing the local Source characteristics of biogenic aerosol from the SO. Millennial variability in NH4+ and nssSO(4)(2-) is within the uncertainty of our flux estimates. Correlation with mineral dust and sea ice derived sodium shows only a very weak influence of dust deposition on those insignificant changes in nssSO(4)(2-) flux for the Atlantic sector of the Southern Ocean, but also small transport changes or terrigeneous sulfate contributions may contribute to those variations at EDML. (C) 2009 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Kaufmann, Patrik Fundel, Felix Fischer, Hubertus Bigler, Matthias Ruth, Urs Udisti, Roberto Hansson, Margareta De Angelis, Martine Barbante, Carlo Wolff, Eric W. Hutterli, Manuel Wagenbach, Dietmar |
author_facet |
Kaufmann, Patrik Fundel, Felix Fischer, Hubertus Bigler, Matthias Ruth, Urs Udisti, Roberto Hansson, Margareta De Angelis, Martine Barbante, Carlo Wolff, Eric W. Hutterli, Manuel Wagenbach, Dietmar |
author_sort |
Kaufmann, Patrik |
title |
Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean |
title_short |
Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean |
title_full |
Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean |
title_fullStr |
Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean |
title_full_unstemmed |
Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean |
title_sort |
ammonium and non-sea salt sulfate in the epica ice cores as indicator of biological activity in the southern ocean |
publisher |
Pergamon-Elsevier |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/10542/ http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6VBC-4XTYD52-2-1&_cdi=5923&_user=1773399&_pii=S0277379109003722&_orig=browse&_coverDate=01%2F31%2F2010&_sk=999709998&view=c&wchp=dGLzVtz-zSkzS&md5=bba54b85b629f46f833bbcd46988476f&ie=/sdarticle.pdf |
geographic |
Antarctic Dronning Maud Land Indian Southern Ocean |
geographic_facet |
Antarctic Dronning Maud Land Indian Southern Ocean |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land EPICA ice core Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land EPICA ice core Sea ice Southern Ocean |
op_relation |
Kaufmann, Patrik; Fundel, Felix; Fischer, Hubertus; Bigler, Matthias; Ruth, Urs; Udisti, Roberto; Hansson, Margareta; De Angelis, Martine; Barbante, Carlo; Wolff, Eric W.; Hutterli, Manuel; Wagenbach, Dietmar. 2010 Ammonium and non-sea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean. Quaternary Science Reviews, 29 (1-2). 313-323. https://doi.org/10.1016/j.quascirev.2009.11.009 <https://doi.org/10.1016/j.quascirev.2009.11.009> |
op_doi |
https://doi.org/10.1016/j.quascirev.2009.11.009 |
container_title |
Quaternary Science Reviews |
container_volume |
29 |
container_issue |
1-2 |
container_start_page |
313 |
op_container_end_page |
323 |
_version_ |
1766214162107596800 |