A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica.
In the framework of the European Project for Ice Coring in Antarctica (EPICA) a glacio-chemical pre-sitesurvey was carried out in Dronning Maud Land (DML), Antarctica. Up to now three intermediate deep icecores and twelve snow pits have been analysed by ion chromatography. The spatial and seasonal v...
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ftawi:oai:epic.awi.de:4629 2024-09-15T17:39:59+00:00 A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica. Göktas, F. Fischer, Hubertus Oerter, Hans Weller, Rolf Sommer, S. Miller, Heinrich 2002 application/pdf https://epic.awi.de/id/eprint/4629/ https://epic.awi.de/id/eprint/4629/1/Goe2001a.pdf https://hdl.handle.net/10013/epic.15201 https://hdl.handle.net/10013/epic.15201.d001 unknown https://epic.awi.de/id/eprint/4629/1/Goe2001a.pdf https://hdl.handle.net/10013/epic.15201.d001 Göktas, F. , Fischer, H. , Oerter, H. , Weller, R. orcid:0000-0003-4880-5572 , Sommer, S. and Miller, H. (2002) A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica. , Annals of Glaciology, 35 , pp. 347-354 . hdl:10013/epic.15201 EPIC3Annals of Glaciology, 35, pp. 347-354 Article isiRev 2002 ftawi 2024-06-24T03:54:51Z In the framework of the European Project for Ice Coring in Antarctica (EPICA) a glacio-chemical pre-sitesurvey was carried out in Dronning Maud Land (DML), Antarctica. Up to now three intermediate deep icecores and twelve snow pits have been analysed by ion chromatography. The spatial and seasonal variationsof the snow chemistry in DML, covering the time period 1997 to 1865, are presented. Summer maxima insulphate and winter maxima in sea-salt components are well archived in the area under investigation,while for nitrate and methanesulphonic acid (MSA) seasonal variations could not be unambiguouslydetected due to postdepositional changes. Average concentrations of sea-salt components and nitrateare spatially uniform in the plateau region, however sea salt shows an exponential decline with altitudefor elevations below 2800 m a.s.l. Non-seasalt sulphate shows a 40% increase with lower snowaccumulation, while MSA shows a 50% decline with higher elevation and lower accumulation. The outcomeof this study supports that the data of the new EPICA deep drilling site in DML (0°04.07' E, 75°00.10' S)will be geographical representative for this region. High-resolution analytical methods will allow accuratestratigraphic dating of the core, at least for the Holocene period. Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctica DML Dronning Maud Land EPICA Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
In the framework of the European Project for Ice Coring in Antarctica (EPICA) a glacio-chemical pre-sitesurvey was carried out in Dronning Maud Land (DML), Antarctica. Up to now three intermediate deep icecores and twelve snow pits have been analysed by ion chromatography. The spatial and seasonal variationsof the snow chemistry in DML, covering the time period 1997 to 1865, are presented. Summer maxima insulphate and winter maxima in sea-salt components are well archived in the area under investigation,while for nitrate and methanesulphonic acid (MSA) seasonal variations could not be unambiguouslydetected due to postdepositional changes. Average concentrations of sea-salt components and nitrateare spatially uniform in the plateau region, however sea salt shows an exponential decline with altitudefor elevations below 2800 m a.s.l. Non-seasalt sulphate shows a 40% increase with lower snowaccumulation, while MSA shows a 50% decline with higher elevation and lower accumulation. The outcomeof this study supports that the data of the new EPICA deep drilling site in DML (0°04.07' E, 75°00.10' S)will be geographical representative for this region. High-resolution analytical methods will allow accuratestratigraphic dating of the core, at least for the Holocene period. |
format |
Article in Journal/Newspaper |
author |
Göktas, F. Fischer, Hubertus Oerter, Hans Weller, Rolf Sommer, S. Miller, Heinrich |
spellingShingle |
Göktas, F. Fischer, Hubertus Oerter, Hans Weller, Rolf Sommer, S. Miller, Heinrich A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica. |
author_facet |
Göktas, F. Fischer, Hubertus Oerter, Hans Weller, Rolf Sommer, S. Miller, Heinrich |
author_sort |
Göktas, F. |
title |
A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica. |
title_short |
A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica. |
title_full |
A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica. |
title_fullStr |
A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica. |
title_full_unstemmed |
A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica. |
title_sort |
glacio-chemical characterisation of the new epica deep-drilling site on amundsenisen, dronning maud land, antarctica. |
publishDate |
2002 |
url |
https://epic.awi.de/id/eprint/4629/ https://epic.awi.de/id/eprint/4629/1/Goe2001a.pdf https://hdl.handle.net/10013/epic.15201 https://hdl.handle.net/10013/epic.15201.d001 |
genre |
Annals of Glaciology Antarc* Antarctica DML Dronning Maud Land EPICA |
genre_facet |
Annals of Glaciology Antarc* Antarctica DML Dronning Maud Land EPICA |
op_source |
EPIC3Annals of Glaciology, 35, pp. 347-354 |
op_relation |
https://epic.awi.de/id/eprint/4629/1/Goe2001a.pdf https://hdl.handle.net/10013/epic.15201.d001 Göktas, F. , Fischer, H. , Oerter, H. , Weller, R. orcid:0000-0003-4880-5572 , Sommer, S. and Miller, H. (2002) A glacio-chemical characterisation of the new EPICA deep-drilling site on Amundsenisen, Dronning Maud Land, Antarctica. , Annals of Glaciology, 35 , pp. 347-354 . hdl:10013/epic.15201 |
_version_ |
1810483887988539392 |