An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the 1450s CE eruption of Kuwae, Vanuatu
Volcanic eruptions are an important cause of natural climate variability. In order to improve the accuracy of climate models, precise dating and magnitude of the climatic effects of past volcanism are necessary. Here we present a 2000-yr record of Southern Hemisphere volcanism recorded in ice cores...
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ftcopernicus:oai:publications.copernicus.org:cp14967 2023-05-15T13:54:27+02:00 An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the 1450s CE eruption of Kuwae, Vanuatu Plummer, C. T. Curran, M. A. J. Ommen, T D. Rasmussen, S. O. Moy, A. D. Vance, T. R. Clausen, H. B. Vinther, B. M. Mayewski, P. A. 2018-09-27 application/pdf https://doi.org/10.5194/cp-8-1929-2012 https://cp.copernicus.org/articles/8/1929/2012/ eng eng doi:10.5194/cp-8-1929-2012 https://cp.copernicus.org/articles/8/1929/2012/ eISSN: 1814-9332 Text 2018 ftcopernicus https://doi.org/10.5194/cp-8-1929-2012 2020-07-20T16:25:38Z Volcanic eruptions are an important cause of natural climate variability. In order to improve the accuracy of climate models, precise dating and magnitude of the climatic effects of past volcanism are necessary. Here we present a 2000-yr record of Southern Hemisphere volcanism recorded in ice cores from the high accumulation Law Dome site, East Antarctica. The ice cores were analysed for a suite of chemistry signals and are independently dated via annual layer counting, with 11 ambiguous years at 23 BCE, which has presently the lowest error of all published long Antarctic ice cores. Independently dated records are important to avoid circular dating where volcanic signatures are assigned a date from some external information rather than using the date it is found in the ice core. Forty-five volcanic events have been identified using the sulphate chemistry of the Law Dome record. The low dating error and comparison with the NGRIP (North Greenland Ice Core Project) volcanic records (on the GICC05 timescale) suggest Law Dome is the most accurately dated Antarctic volcanic dataset, which will improve the dating of individual volcanic events and potentially allow better correlation between ice core records, leading to improvements in global volcanic forcing datasets. One of the most important volcanic events of the last two millennia is the large 1450s CE event, usually assigned to the eruption of Kuwae, Vanuatu. In this study, we review the evidence surrounding the presently accepted date for this event, and make the case that two separate eruptions have caused confusion in the assignment of this event. Volcanic sulphate deposition estimates are important for modelling the climatic response to eruptions. The largest volcanic sulphate events in our record are dated at 1458 CE (Kuwae?, Vanuatu), 1257 and 422 CE (unidentified). Text Antarc* Antarctic Antarctica East Antarctica Greenland Greenland ice core Greenland Ice core Project ice core NGRIP North Greenland North Greenland Ice Core Project Copernicus Publications: E-Journals Antarctic East Antarctica Greenland Law Dome ENVELOPE(112.833,112.833,-66.733,-66.733) Climate of the Past 8 6 1929 1940 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
Volcanic eruptions are an important cause of natural climate variability. In order to improve the accuracy of climate models, precise dating and magnitude of the climatic effects of past volcanism are necessary. Here we present a 2000-yr record of Southern Hemisphere volcanism recorded in ice cores from the high accumulation Law Dome site, East Antarctica. The ice cores were analysed for a suite of chemistry signals and are independently dated via annual layer counting, with 11 ambiguous years at 23 BCE, which has presently the lowest error of all published long Antarctic ice cores. Independently dated records are important to avoid circular dating where volcanic signatures are assigned a date from some external information rather than using the date it is found in the ice core. Forty-five volcanic events have been identified using the sulphate chemistry of the Law Dome record. The low dating error and comparison with the NGRIP (North Greenland Ice Core Project) volcanic records (on the GICC05 timescale) suggest Law Dome is the most accurately dated Antarctic volcanic dataset, which will improve the dating of individual volcanic events and potentially allow better correlation between ice core records, leading to improvements in global volcanic forcing datasets. One of the most important volcanic events of the last two millennia is the large 1450s CE event, usually assigned to the eruption of Kuwae, Vanuatu. In this study, we review the evidence surrounding the presently accepted date for this event, and make the case that two separate eruptions have caused confusion in the assignment of this event. Volcanic sulphate deposition estimates are important for modelling the climatic response to eruptions. The largest volcanic sulphate events in our record are dated at 1458 CE (Kuwae?, Vanuatu), 1257 and 422 CE (unidentified). |
format |
Text |
author |
Plummer, C. T. Curran, M. A. J. Ommen, T D. Rasmussen, S. O. Moy, A. D. Vance, T. R. Clausen, H. B. Vinther, B. M. Mayewski, P. A. |
spellingShingle |
Plummer, C. T. Curran, M. A. J. Ommen, T D. Rasmussen, S. O. Moy, A. D. Vance, T. R. Clausen, H. B. Vinther, B. M. Mayewski, P. A. An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the 1450s CE eruption of Kuwae, Vanuatu |
author_facet |
Plummer, C. T. Curran, M. A. J. Ommen, T D. Rasmussen, S. O. Moy, A. D. Vance, T. R. Clausen, H. B. Vinther, B. M. Mayewski, P. A. |
author_sort |
Plummer, C. T. |
title |
An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the 1450s CE eruption of Kuwae, Vanuatu |
title_short |
An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the 1450s CE eruption of Kuwae, Vanuatu |
title_full |
An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the 1450s CE eruption of Kuwae, Vanuatu |
title_fullStr |
An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the 1450s CE eruption of Kuwae, Vanuatu |
title_full_unstemmed |
An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the 1450s CE eruption of Kuwae, Vanuatu |
title_sort |
independently dated 2000-yr volcanic record from law dome, east antarctica, including a new perspective on the dating of the 1450s ce eruption of kuwae, vanuatu |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-8-1929-2012 https://cp.copernicus.org/articles/8/1929/2012/ |
long_lat |
ENVELOPE(112.833,112.833,-66.733,-66.733) |
geographic |
Antarctic East Antarctica Greenland Law Dome |
geographic_facet |
Antarctic East Antarctica Greenland Law Dome |
genre |
Antarc* Antarctic Antarctica East Antarctica Greenland Greenland ice core Greenland Ice core Project ice core NGRIP North Greenland North Greenland Ice Core Project |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Greenland Greenland ice core Greenland Ice core Project ice core NGRIP North Greenland North Greenland Ice Core Project |
op_source |
eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-8-1929-2012 https://cp.copernicus.org/articles/8/1929/2012/ |
op_doi |
https://doi.org/10.5194/cp-8-1929-2012 |
container_title |
Climate of the Past |
container_volume |
8 |
container_issue |
6 |
container_start_page |
1929 |
op_container_end_page |
1940 |
_version_ |
1766260385798684672 |