A high-altitude snow chemistry record from Amundsenisen, Dronning Maud Land, Antarctica
In this paper a detailed record of major ions from a 20 m deep firn core from Amundsenisen, western Dronning Maud Land, Antarctica, is presented. The core was drilled at 75° S, 2° E (2900 m a.s.l.) during austral summer 1991/92. The following ions were measured at 3 cm resolution: Na+, Mg2+, Ca2+,...
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University of New Hampshire Scholars' Repository
2001
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ftuninhampshire:oai:scholars.unh.edu:faculty_pubs-1340 2024-09-15T17:43:30+00:00 A high-altitude snow chemistry record from Amundsenisen, Dronning Maud Land, Antarctica Isaksson, Elisabeth Karlen, Wibjorn Mayewski, Paul A. Twickler, Mark S. Whitlow, Sallie I. 2001-01-01T08:00:00Z application/pdf https://scholars.unh.edu/faculty_pubs/341 https://doi.org/10.3189/172756501781832070; https://scholars.unh.edu/context/faculty_pubs/article/1340/viewcontent/highaltitude_snow_chemistry_record_from_amundsenisen_dronning_maud_land_antarctica.pdf unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/faculty_pubs/341 doi: https://dx.doi.org/10.3189/172756501781832070 https://scholars.unh.edu/context/faculty_pubs/article/1340/viewcontent/highaltitude_snow_chemistry_record_from_amundsenisen_dronning_maud_land_antarctica.pdf © International Glaciological Society 2001. http://creativecommons.org/licenses/by/3.0/ Faculty Publications text 2001 ftuninhampshire https://doi.org/10.3189/172756501781832070;10.3189/172756501781832070 2024-08-02T04:50:27Z In this paper a detailed record of major ions from a 20 m deep firn core from Amundsenisen, western Dronning Maud Land, Antarctica, is presented. The core was drilled at 75° S, 2° E (2900 m a.s.l.) during austral summer 1991/92. The following ions were measured at 3 cm resolution: Na+, Mg2+, Ca2+, Cl−, NO3−, S04 2− and CH3SO3H (MSA). The core was dated back to 1865 using a combination of chemical records and volcanic reference horizons. The volcanic eruptions identified in this core are Mount Ngauruhoe, New Zealand (1974–75), Mount Agung, Indonesia (1963), Azul, Argentina (1932), and a broad peak that corresponds in time toTarawera, New Zealand (1886), Falcon Island, South Shetlands, Southern Ocean (1885), and Krakatau, Indonesia (1883). There are no trends in any of the ion records, but the annual to decadal changes are large. The mean concentrations of the measured ions are in agreement with those from other high-altitude cores from the Antarctic plateau. At this core site there may be a correspondence between peaks in the MSA record and major El Niño–Southern Oscillation events. Text Antarc* Antarctic Antarctica Dronning Maud Land Southern Ocean University of New Hampshire: Scholars Repository |
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Open Polar |
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University of New Hampshire: Scholars Repository |
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ftuninhampshire |
language |
unknown |
description |
In this paper a detailed record of major ions from a 20 m deep firn core from Amundsenisen, western Dronning Maud Land, Antarctica, is presented. The core was drilled at 75° S, 2° E (2900 m a.s.l.) during austral summer 1991/92. The following ions were measured at 3 cm resolution: Na+, Mg2+, Ca2+, Cl−, NO3−, S04 2− and CH3SO3H (MSA). The core was dated back to 1865 using a combination of chemical records and volcanic reference horizons. The volcanic eruptions identified in this core are Mount Ngauruhoe, New Zealand (1974–75), Mount Agung, Indonesia (1963), Azul, Argentina (1932), and a broad peak that corresponds in time toTarawera, New Zealand (1886), Falcon Island, South Shetlands, Southern Ocean (1885), and Krakatau, Indonesia (1883). There are no trends in any of the ion records, but the annual to decadal changes are large. The mean concentrations of the measured ions are in agreement with those from other high-altitude cores from the Antarctic plateau. At this core site there may be a correspondence between peaks in the MSA record and major El Niño–Southern Oscillation events. |
format |
Text |
author |
Isaksson, Elisabeth Karlen, Wibjorn Mayewski, Paul A. Twickler, Mark S. Whitlow, Sallie I. |
spellingShingle |
Isaksson, Elisabeth Karlen, Wibjorn Mayewski, Paul A. Twickler, Mark S. Whitlow, Sallie I. A high-altitude snow chemistry record from Amundsenisen, Dronning Maud Land, Antarctica |
author_facet |
Isaksson, Elisabeth Karlen, Wibjorn Mayewski, Paul A. Twickler, Mark S. Whitlow, Sallie I. |
author_sort |
Isaksson, Elisabeth |
title |
A high-altitude snow chemistry record from Amundsenisen, Dronning Maud Land, Antarctica |
title_short |
A high-altitude snow chemistry record from Amundsenisen, Dronning Maud Land, Antarctica |
title_full |
A high-altitude snow chemistry record from Amundsenisen, Dronning Maud Land, Antarctica |
title_fullStr |
A high-altitude snow chemistry record from Amundsenisen, Dronning Maud Land, Antarctica |
title_full_unstemmed |
A high-altitude snow chemistry record from Amundsenisen, Dronning Maud Land, Antarctica |
title_sort |
high-altitude snow chemistry record from amundsenisen, dronning maud land, antarctica |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
2001 |
url |
https://scholars.unh.edu/faculty_pubs/341 https://doi.org/10.3189/172756501781832070; https://scholars.unh.edu/context/faculty_pubs/article/1340/viewcontent/highaltitude_snow_chemistry_record_from_amundsenisen_dronning_maud_land_antarctica.pdf |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land Southern Ocean |
op_source |
Faculty Publications |
op_relation |
https://scholars.unh.edu/faculty_pubs/341 doi: https://dx.doi.org/10.3189/172756501781832070 https://scholars.unh.edu/context/faculty_pubs/article/1340/viewcontent/highaltitude_snow_chemistry_record_from_amundsenisen_dronning_maud_land_antarctica.pdf |
op_rights |
© International Glaciological Society 2001. http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.3189/172756501781832070;10.3189/172756501781832070 |
_version_ |
1810490507489443840 |