Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial
Along the EPICA Dome C ice core, we measured concentrations of different water-soluble aerosol constituents and deduced total depositional flux records. Here we present high-resolution sodium, calcium, ammonium and nitrate data covering the last 173,000 years. The first three of these species are pa...
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ftnerc:oai:nora.nerc.ac.uk:10551 2023-05-15T13:45:10+02:00 Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial Bigler, Matthias Röthlisberger, Regine Lambert, Fabrice Wolff, Eric W. Castellano, Emiliano Udisti, Roberto Stocker, Thomas F. Fischer, Hubertus 2010 http://nora.nerc.ac.uk/id/eprint/10551/ https://doi.org/10.1016/j.quascirev.2009.09.009 unknown Pergamon-Elsevier Bigler, Matthias; Röthlisberger, Regine; Lambert, Fabrice; Wolff, Eric W.; Castellano, Emiliano; Udisti, Roberto; Stocker, Thomas F.; Fischer, Hubertus. 2010 Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial. Quaternary Science Reviews, 29 (1-2). 324-337. https://doi.org/10.1016/j.quascirev.2009.09.009 <https://doi.org/10.1016/j.quascirev.2009.09.009> Glaciology Chemistry Publication - Article PeerReviewed 2010 ftnerc https://doi.org/10.1016/j.quascirev.2009.09.009 2023-02-04T19:26:45Z Along the EPICA Dome C ice core, we measured concentrations of different water-soluble aerosol constituents and deduced total depositional flux records. Here we present high-resolution sodium, calcium, ammonium and nitrate data covering the last 173,000 years. The first three of these species are passive tracers and reveal source and long-range transport changes whereas nitrate is deposited reversibly. However, it can be used to check isotope-derived accumulation rate estimates, a prerequisite to calculate total depositional fluxes. During the last two transitions from glacial to interglacial periods, changes in the total depositional flux differ strongly for different aerosol species. The largest changes are observed in the terrestrial aerosol proxy non-sea salt calcium, only moderate changes occur in the marine sea salt indicator sodium, while ammonium, a proxy for marine bioproductivity, remains rather constant. In agreement with previous studies, we find that only considerable glacial–interglacial changes at both, the terrestrial and the marine sea salt aerosol source can explain the observed pronounced changes. The unprecedented high-resolution of our data allows for the first time the examination of decadal variability back to the penultimate glacial period. On the one hand, we find occasional fast shifts occurring within a few years; here we present such an event in the calcium record from the penultimate glacial period. On the other hand, we examine variation coefficients and pairwise correlation coefficients, both determined in 200-year windows. They generally reveal only moderate changes. During glacial periods, slightly lower variation coefficients are found, concurrent with slightly higher correlation coefficients, which points to a more uniform and stronger coupled atmospheric long-range transport of the different aerosol species to the East Antarctic Plateau and less influence of cyclonic activities during cold periods. The opposite is observed for interglacial periods with probably even reinforced ... Article in Journal/Newspaper Antarc* Antarctic EPICA ice core Natural Environment Research Council: NERC Open Research Archive Antarctic Quaternary Science Reviews 29 1-2 324 337 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Glaciology Chemistry |
spellingShingle |
Glaciology Chemistry Bigler, Matthias Röthlisberger, Regine Lambert, Fabrice Wolff, Eric W. Castellano, Emiliano Udisti, Roberto Stocker, Thomas F. Fischer, Hubertus Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial |
topic_facet |
Glaciology Chemistry |
description |
Along the EPICA Dome C ice core, we measured concentrations of different water-soluble aerosol constituents and deduced total depositional flux records. Here we present high-resolution sodium, calcium, ammonium and nitrate data covering the last 173,000 years. The first three of these species are passive tracers and reveal source and long-range transport changes whereas nitrate is deposited reversibly. However, it can be used to check isotope-derived accumulation rate estimates, a prerequisite to calculate total depositional fluxes. During the last two transitions from glacial to interglacial periods, changes in the total depositional flux differ strongly for different aerosol species. The largest changes are observed in the terrestrial aerosol proxy non-sea salt calcium, only moderate changes occur in the marine sea salt indicator sodium, while ammonium, a proxy for marine bioproductivity, remains rather constant. In agreement with previous studies, we find that only considerable glacial–interglacial changes at both, the terrestrial and the marine sea salt aerosol source can explain the observed pronounced changes. The unprecedented high-resolution of our data allows for the first time the examination of decadal variability back to the penultimate glacial period. On the one hand, we find occasional fast shifts occurring within a few years; here we present such an event in the calcium record from the penultimate glacial period. On the other hand, we examine variation coefficients and pairwise correlation coefficients, both determined in 200-year windows. They generally reveal only moderate changes. During glacial periods, slightly lower variation coefficients are found, concurrent with slightly higher correlation coefficients, which points to a more uniform and stronger coupled atmospheric long-range transport of the different aerosol species to the East Antarctic Plateau and less influence of cyclonic activities during cold periods. The opposite is observed for interglacial periods with probably even reinforced ... |
format |
Article in Journal/Newspaper |
author |
Bigler, Matthias Röthlisberger, Regine Lambert, Fabrice Wolff, Eric W. Castellano, Emiliano Udisti, Roberto Stocker, Thomas F. Fischer, Hubertus |
author_facet |
Bigler, Matthias Röthlisberger, Regine Lambert, Fabrice Wolff, Eric W. Castellano, Emiliano Udisti, Roberto Stocker, Thomas F. Fischer, Hubertus |
author_sort |
Bigler, Matthias |
title |
Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial |
title_short |
Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial |
title_full |
Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial |
title_fullStr |
Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial |
title_full_unstemmed |
Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial |
title_sort |
atmospheric decadal variability from high-resolution dome c ice core records of aerosol constituents beyond the last interglacial |
publisher |
Pergamon-Elsevier |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/10551/ https://doi.org/10.1016/j.quascirev.2009.09.009 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic EPICA ice core |
genre_facet |
Antarc* Antarctic EPICA ice core |
op_relation |
Bigler, Matthias; Röthlisberger, Regine; Lambert, Fabrice; Wolff, Eric W.; Castellano, Emiliano; Udisti, Roberto; Stocker, Thomas F.; Fischer, Hubertus. 2010 Atmospheric decadal variability from high-resolution Dome C ice core records of aerosol constituents beyond the Last Interglacial. Quaternary Science Reviews, 29 (1-2). 324-337. https://doi.org/10.1016/j.quascirev.2009.09.009 <https://doi.org/10.1016/j.quascirev.2009.09.009> |
op_doi |
https://doi.org/10.1016/j.quascirev.2009.09.009 |
container_title |
Quaternary Science Reviews |
container_volume |
29 |
container_issue |
1-2 |
container_start_page |
324 |
op_container_end_page |
337 |
_version_ |
1766214174502813696 |