NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period
Sub-orbital-scale climate variability of the last glacial period provides important insights into the rates at which the climate can change state, the mechanisms that drive such changes, and the leads, lags, and synchronicity occurring across different climate zones. Such short-term climate variabil...
Published in: | Climate of the Past |
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Copernicus Publications
2020
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Online Access: | https://doi.org/10.5194/cp-16-29-2020 https://www.clim-past.net/16/29/2020/cp-16-29-2020.pdf https://doaj.org/article/7cf0a0850ddd4e5b8a2f1a3986d2eb59 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:7cf0a0850ddd4e5b8a2f1a3986d2eb59 2023-05-15T14:04:02+02:00 NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period G. E. Moseley C. Spötl S. Brandstätter T. Erhardt M. Luetscher R. L. Edwards 2020-01-01 https://doi.org/10.5194/cp-16-29-2020 https://www.clim-past.net/16/29/2020/cp-16-29-2020.pdf https://doaj.org/article/7cf0a0850ddd4e5b8a2f1a3986d2eb59 en eng Copernicus Publications doi:10.5194/cp-16-29-2020 1814-9324 1814-9332 https://www.clim-past.net/16/29/2020/cp-16-29-2020.pdf https://doaj.org/article/7cf0a0850ddd4e5b8a2f1a3986d2eb59 undefined Climate of the Past, Vol 16, Pp 29-50 (2020) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.5194/cp-16-29-2020 2023-01-22T19:08:26Z Sub-orbital-scale climate variability of the last glacial period provides important insights into the rates at which the climate can change state, the mechanisms that drive such changes, and the leads, lags, and synchronicity occurring across different climate zones. Such short-term climate variability has previously been investigated using δ18O from speleothems (δ18Ocalc) that grew along the northern rim of the Alps (NALPS), enabling direct chronological comparisons with δ18O records from Greenland ice cores (δ18Oice). In this study, we present NALPS19, which includes a revision of the last glacial NALPS δ18Ocalc chronology over the interval 118.3 to 63.7 ka using 11, newly available, clean, precisely dated stalagmites from five caves. Using only the most reliable and precisely dated records, this period is now 90 % complete and is comprised of 16 stalagmites from seven caves. Where speleothems grew synchronously, the timing of major transitional events in δ18Ocalc between stadials and interstadials (and vice versa) are all in agreement on multi-decadal timescales. Ramp-fitting analysis further reveals that, except for one abrupt change, the timing of δ18O transitions occurred synchronously within centennial-scale dating uncertainties between the NALPS19 δ18Ocalc record and the Asian monsoon composite speleothem δ18Ocalc record. Due to the millennial-scale uncertainties in the ice core chronologies, a comprehensive comparison with the NALPS19 chronology is difficult. Generally, however, we find that the absolute timing of transitions in the Greenland Ice Core Chronology (GICC) 05modelext and Antarctic Ice Core Chronology (AICC) 2012 are in agreement on centennial scales. The exception to this is during the interval of 100 to 115 ka, where transitions in the AICC2012 chronology occurred up to 3000 years later than in NALPS19. In such instances, the transitions in the revised AICC2012 chronology of Extier et al. (2018) are in agreement with NALPS19 on centennial scales, supporting the hypothesis that AICC2012 ... Article in Journal/Newspaper Antarc* Antarctic Greenland Greenland ice core Greenland ice cores ice core Unknown Antarctic Greenland Climate of the Past 16 1 29 50 |
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English |
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geo envir G. E. Moseley C. Spötl S. Brandstätter T. Erhardt M. Luetscher R. L. Edwards NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period |
topic_facet |
geo envir |
description |
Sub-orbital-scale climate variability of the last glacial period provides important insights into the rates at which the climate can change state, the mechanisms that drive such changes, and the leads, lags, and synchronicity occurring across different climate zones. Such short-term climate variability has previously been investigated using δ18O from speleothems (δ18Ocalc) that grew along the northern rim of the Alps (NALPS), enabling direct chronological comparisons with δ18O records from Greenland ice cores (δ18Oice). In this study, we present NALPS19, which includes a revision of the last glacial NALPS δ18Ocalc chronology over the interval 118.3 to 63.7 ka using 11, newly available, clean, precisely dated stalagmites from five caves. Using only the most reliable and precisely dated records, this period is now 90 % complete and is comprised of 16 stalagmites from seven caves. Where speleothems grew synchronously, the timing of major transitional events in δ18Ocalc between stadials and interstadials (and vice versa) are all in agreement on multi-decadal timescales. Ramp-fitting analysis further reveals that, except for one abrupt change, the timing of δ18O transitions occurred synchronously within centennial-scale dating uncertainties between the NALPS19 δ18Ocalc record and the Asian monsoon composite speleothem δ18Ocalc record. Due to the millennial-scale uncertainties in the ice core chronologies, a comprehensive comparison with the NALPS19 chronology is difficult. Generally, however, we find that the absolute timing of transitions in the Greenland Ice Core Chronology (GICC) 05modelext and Antarctic Ice Core Chronology (AICC) 2012 are in agreement on centennial scales. The exception to this is during the interval of 100 to 115 ka, where transitions in the AICC2012 chronology occurred up to 3000 years later than in NALPS19. In such instances, the transitions in the revised AICC2012 chronology of Extier et al. (2018) are in agreement with NALPS19 on centennial scales, supporting the hypothesis that AICC2012 ... |
format |
Article in Journal/Newspaper |
author |
G. E. Moseley C. Spötl S. Brandstätter T. Erhardt M. Luetscher R. L. Edwards |
author_facet |
G. E. Moseley C. Spötl S. Brandstätter T. Erhardt M. Luetscher R. L. Edwards |
author_sort |
G. E. Moseley |
title |
NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period |
title_short |
NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period |
title_full |
NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period |
title_fullStr |
NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period |
title_full_unstemmed |
NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period |
title_sort |
nalps19: sub-orbital-scale climate variability recorded in northern alpine speleothems during the last glacial period |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/cp-16-29-2020 https://www.clim-past.net/16/29/2020/cp-16-29-2020.pdf https://doaj.org/article/7cf0a0850ddd4e5b8a2f1a3986d2eb59 |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Greenland Greenland ice core Greenland ice cores ice core |
genre_facet |
Antarc* Antarctic Greenland Greenland ice core Greenland ice cores ice core |
op_source |
Climate of the Past, Vol 16, Pp 29-50 (2020) |
op_relation |
doi:10.5194/cp-16-29-2020 1814-9324 1814-9332 https://www.clim-past.net/16/29/2020/cp-16-29-2020.pdf https://doaj.org/article/7cf0a0850ddd4e5b8a2f1a3986d2eb59 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-16-29-2020 |
container_title |
Climate of the Past |
container_volume |
16 |
container_issue |
1 |
container_start_page |
29 |
op_container_end_page |
50 |
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1766274976473677824 |