The role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the EPICA Dronning Maud Land ice core ...
We present a record of particulate dust concentration and size distribution in subannual resolution measured on the European Project for Ice Coring in Antarctica (EPICA) Dronning Maud Land (EDML) ice core drilled in the Atlantic sector of the East Antarctic plateau. The record reaches from present d...
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American Geophysical Union
2015
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ftdatacite:10.7892/boris.72753 2024-09-30T14:25:40+00:00 The role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the EPICA Dronning Maud Land ice core ... Petit, Jean-Robert Wegner, Anna Vinther, Bo Miller, Heinrich Fischer, Hubertus Ruth, Urs Erhardt, Tobias Delmonte, Barbara Svensson, Anders 2015 application/pdf https://dx.doi.org/10.7892/boris.72753 http://boris.unibe.ch/72753/ en eng American Geophysical Union info:eu-repo/semantics/openAccess 530 Physics Text ScholarlyArticle article-journal 2015 ftdatacite https://doi.org/10.7892/boris.72753 2024-09-02T10:17:31Z We present a record of particulate dust concentration and size distribution in subannual resolution measured on the European Project for Ice Coring in Antarctica (EPICA) Dronning Maud Land (EDML) ice core drilled in the Atlantic sector of the East Antarctic plateau. The record reaches from present day back to the penultimate glacial until 145,000 years B.P. with subannual resolution from 60,000 years B.P. to the present. Mean dust concentrations are a factor of 46 higher during the glacial (~850–4600 ng/mL) compared to the Holocene (~16–112 ng/mL) with slightly smaller dust particles during the glacial comparedto the Holocene and with an absolute minimum in the dust size at 16,000 years B.P. The changes in dust concentration are mainly attributed to changes in source conditions in southern South America. An increase in the modal value of the dust size suggests that at 16,000 years B.P. a major change in atmospheric circulation apparently allowed more direct transport of dust particles to the EDML drill site. ... Text Antarc* Antarctic Antarctica Dronning Maud Land EPICA ice core DataCite Antarctic Dronning Maud Land |
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530 Physics Petit, Jean-Robert Wegner, Anna Vinther, Bo Miller, Heinrich Fischer, Hubertus Ruth, Urs Erhardt, Tobias Delmonte, Barbara Svensson, Anders The role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the EPICA Dronning Maud Land ice core ... |
topic_facet |
530 Physics |
description |
We present a record of particulate dust concentration and size distribution in subannual resolution measured on the European Project for Ice Coring in Antarctica (EPICA) Dronning Maud Land (EDML) ice core drilled in the Atlantic sector of the East Antarctic plateau. The record reaches from present day back to the penultimate glacial until 145,000 years B.P. with subannual resolution from 60,000 years B.P. to the present. Mean dust concentrations are a factor of 46 higher during the glacial (~850–4600 ng/mL) compared to the Holocene (~16–112 ng/mL) with slightly smaller dust particles during the glacial comparedto the Holocene and with an absolute minimum in the dust size at 16,000 years B.P. The changes in dust concentration are mainly attributed to changes in source conditions in southern South America. An increase in the modal value of the dust size suggests that at 16,000 years B.P. a major change in atmospheric circulation apparently allowed more direct transport of dust particles to the EDML drill site. ... |
format |
Text |
author |
Petit, Jean-Robert Wegner, Anna Vinther, Bo Miller, Heinrich Fischer, Hubertus Ruth, Urs Erhardt, Tobias Delmonte, Barbara Svensson, Anders |
author_facet |
Petit, Jean-Robert Wegner, Anna Vinther, Bo Miller, Heinrich Fischer, Hubertus Ruth, Urs Erhardt, Tobias Delmonte, Barbara Svensson, Anders |
author_sort |
Petit, Jean-Robert |
title |
The role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the EPICA Dronning Maud Land ice core ... |
title_short |
The role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the EPICA Dronning Maud Land ice core ... |
title_full |
The role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the EPICA Dronning Maud Land ice core ... |
title_fullStr |
The role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the EPICA Dronning Maud Land ice core ... |
title_full_unstemmed |
The role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the EPICA Dronning Maud Land ice core ... |
title_sort |
role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the epica dronning maud land ice core ... |
publisher |
American Geophysical Union |
publishDate |
2015 |
url |
https://dx.doi.org/10.7892/boris.72753 http://boris.unibe.ch/72753/ |
geographic |
Antarctic Dronning Maud Land |
geographic_facet |
Antarctic Dronning Maud Land |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land EPICA ice core |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land EPICA ice core |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.7892/boris.72753 |
_version_ |
1811645926828146688 |