Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica
In the framework of the European Project for Ice Coring in Antarctica (EPICA), a comprehensive glaciological pre-site survey has been carried out on Amundsenisen, Dronning Maud Land, East Antarctica, in the past decade. Within this survey four intermediate-depth ice cores and 13 snow pits were analy...
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ftawi:oai:epic.awi.de:8785 2023-09-05T13:13:35+02:00 Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica Traufetter, F. Oerter, Hans Fischer, Hubertus Weller, Rolf Miller, Heinrich 2004 application/pdf https://epic.awi.de/id/eprint/8785/ https://epic.awi.de/id/eprint/8785/1/Tra2003a.pdf https://hdl.handle.net/10013/epic.19312 https://hdl.handle.net/10013/epic.19312.d001 unknown https://epic.awi.de/id/eprint/8785/1/Tra2003a.pdf https://hdl.handle.net/10013/epic.19312.d001 Traufetter, F. , Oerter, H. , Fischer, H. , Weller, R. orcid:0000-0003-4880-5572 and Miller, H. (2004) Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica , Journal of Glaciology, vol. 50, no. 168, pp. 137-146 . hdl:10013/epic.19312 EPIC3Journal of Glaciology, vol. 50, no. 168, pp. 137-146, ISSN: 0022-1430 Article isiRev 2004 ftawi 2023-08-22T19:47:36Z In the framework of the European Project for Ice Coring in Antarctica (EPICA), a comprehensive glaciological pre-site survey has been carried out on Amundsenisen, Dronning Maud Land, East Antarctica, in the past decade. Within this survey four intermediate-depth ice cores and 13 snow pits were analysed for their ionic composition and interpreted with respect to the spatial and temporal variability of volcanic sulphate deposition. The comparison of the non-sea-salt (nss)-sulphate peaks that are related to the well-known eruptions of Mt. Pinatubo and Cerro Hudson in AD 1991 revealed sulphate depositions of comparable size (15.8±3.4 kg km-2) in 11 snow pits. There is a tendency to higher annual concentrations for smaller snow accumulation rates. The combination of seasonal sodium and annually resolved nss-sulphate records allowed the establishment of a time-scale derived by annual layer counting over the last 2000 years and thus a detailed chronology of annual volcanic sulphate deposition. Using a robust outlier detection algorithm, 49 volcanic eruptions were identified between AD 165 and 1997. The dating uncertainty is ±3 years between AD 1997 and 1601, around ±5 years between AD 1601 and 1258, and increasing to ±24 years at AD 165, improving the accuracy of the volcanic chronology during the penultimate millenium considerably. Article in Journal/Newspaper Antarc* Antarctica Antarctica Journal Dronning Maud Land East Antarctica EPICA Journal of Glaciology Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) East Antarctica Dronning Maud Land Hudson Amundsenisen ENVELOPE(-6.000,-6.000,-74.500,-74.500) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
In the framework of the European Project for Ice Coring in Antarctica (EPICA), a comprehensive glaciological pre-site survey has been carried out on Amundsenisen, Dronning Maud Land, East Antarctica, in the past decade. Within this survey four intermediate-depth ice cores and 13 snow pits were analysed for their ionic composition and interpreted with respect to the spatial and temporal variability of volcanic sulphate deposition. The comparison of the non-sea-salt (nss)-sulphate peaks that are related to the well-known eruptions of Mt. Pinatubo and Cerro Hudson in AD 1991 revealed sulphate depositions of comparable size (15.8±3.4 kg km-2) in 11 snow pits. There is a tendency to higher annual concentrations for smaller snow accumulation rates. The combination of seasonal sodium and annually resolved nss-sulphate records allowed the establishment of a time-scale derived by annual layer counting over the last 2000 years and thus a detailed chronology of annual volcanic sulphate deposition. Using a robust outlier detection algorithm, 49 volcanic eruptions were identified between AD 165 and 1997. The dating uncertainty is ±3 years between AD 1997 and 1601, around ±5 years between AD 1601 and 1258, and increasing to ±24 years at AD 165, improving the accuracy of the volcanic chronology during the penultimate millenium considerably. |
format |
Article in Journal/Newspaper |
author |
Traufetter, F. Oerter, Hans Fischer, Hubertus Weller, Rolf Miller, Heinrich |
spellingShingle |
Traufetter, F. Oerter, Hans Fischer, Hubertus Weller, Rolf Miller, Heinrich Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica |
author_facet |
Traufetter, F. Oerter, Hans Fischer, Hubertus Weller, Rolf Miller, Heinrich |
author_sort |
Traufetter, F. |
title |
Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica |
title_short |
Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica |
title_full |
Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica |
title_fullStr |
Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica |
title_full_unstemmed |
Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica |
title_sort |
spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from amundsenisen, dronning maud land, antarctica |
publishDate |
2004 |
url |
https://epic.awi.de/id/eprint/8785/ https://epic.awi.de/id/eprint/8785/1/Tra2003a.pdf https://hdl.handle.net/10013/epic.19312 https://hdl.handle.net/10013/epic.19312.d001 |
long_lat |
ENVELOPE(-6.000,-6.000,-74.500,-74.500) |
geographic |
East Antarctica Dronning Maud Land Hudson Amundsenisen |
geographic_facet |
East Antarctica Dronning Maud Land Hudson Amundsenisen |
genre |
Antarc* Antarctica Antarctica Journal Dronning Maud Land East Antarctica EPICA Journal of Glaciology |
genre_facet |
Antarc* Antarctica Antarctica Journal Dronning Maud Land East Antarctica EPICA Journal of Glaciology |
op_source |
EPIC3Journal of Glaciology, vol. 50, no. 168, pp. 137-146, ISSN: 0022-1430 |
op_relation |
https://epic.awi.de/id/eprint/8785/1/Tra2003a.pdf https://hdl.handle.net/10013/epic.19312.d001 Traufetter, F. , Oerter, H. , Fischer, H. , Weller, R. orcid:0000-0003-4880-5572 and Miller, H. (2004) Spatio-temporal variability in volcanic sulphate deposition over the past 2 kyr in snow pits and firn cores from Amundsenisen, Dronning Maud Land, Antarctica , Journal of Glaciology, vol. 50, no. 168, pp. 137-146 . hdl:10013/epic.19312 |
_version_ |
1776204804304928768 |