Deuterium isotope ratios of Victoria Lower Glacier Ice Core, supplement to: Bertler, Nancy A; Mayewski, Paul Andrew; Carter, Lionel (2011): Cold conditions in Antarctica during the Little Ice Age — Implications for abrupt climate change mechanisms. Earth and Planetary Science Letters, 308(1-2), 41-51
The Little Ice Age (LIA) is one of the most prominent climate shifts in the past 5000 yrs. It has been suggested that the LIA might be the most recent of the Dansgaard-Oeschger events, which are better known as abrupt, large scale climate oscillations during the last glacial period. If the case, the...
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ftdatacite:10.1594/pangaea.866368 2023-05-15T13:59:27+02:00 Deuterium isotope ratios of Victoria Lower Glacier Ice Core, supplement to: Bertler, Nancy A; Mayewski, Paul Andrew; Carter, Lionel (2011): Cold conditions in Antarctica during the Little Ice Age — Implications for abrupt climate change mechanisms. Earth and Planetary Science Letters, 308(1-2), 41-51 Bertler, Nancy A Mayewski, Paul Andrew Carter, Lionel 2011 application/zip https://dx.doi.org/10.1594/pangaea.866368 https://doi.pangaea.de/10.1594/PANGAEA.866368 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.epsl.2011.05.021 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Ice drill article Supplementary Collection of Datasets Collection 2011 ftdatacite https://doi.org/10.1594/pangaea.866368 https://doi.org/10.1016/j.epsl.2011.05.021 2022-02-09T13:31:34Z The Little Ice Age (LIA) is one of the most prominent climate shifts in the past 5000 yrs. It has been suggested that the LIA might be the most recent of the Dansgaard-Oeschger events, which are better known as abrupt, large scale climate oscillations during the last glacial period. If the case, then according to Broecker (2000a, 2000b) Antarctica should have warmed during the LIA, when the Northern Hemisphere was cold. Here we present new data from the Ross Sea, Antarctica, that indicates surface temperatures were ~2 °C colder during the LIA, with colder sea surface temperatures in the Southern Ocean and/or increased sea-ice extent, stronger katabatic winds, and decreased snow accumulation. Whilst we find there was large spatial and temporal variability, overall Antarctica was cooler and stormier during the LIA. Although temperatures have warmed since the termination of the LIA, atmospheric circulation strength has remained at the same, elevated level. We conclude, that the LIA was either caused by alternative forcings, or that the sea-saw mechanism operates differently during warm periods. : A 180m deep ice core was drilled at the local ice divide of Victoria Lower Glacier in the McMurdo Dry Valleys. This record here represents the top 50m of the core, capturing the time from 1140-2000 AD. The record has been dated using volcanic signatures in SO4 concentrations. Article in Journal/Newspaper Antarc* Antarctica Dansgaard-Oeschger events ice core McMurdo Dry Valleys Ross Sea Sea ice Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean Ross Sea McMurdo Dry Valleys Victoria Lower Glacier ENVELOPE(162.667,162.667,-77.300,-77.300) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ice drill |
spellingShingle |
Ice drill Bertler, Nancy A Mayewski, Paul Andrew Carter, Lionel Deuterium isotope ratios of Victoria Lower Glacier Ice Core, supplement to: Bertler, Nancy A; Mayewski, Paul Andrew; Carter, Lionel (2011): Cold conditions in Antarctica during the Little Ice Age — Implications for abrupt climate change mechanisms. Earth and Planetary Science Letters, 308(1-2), 41-51 |
topic_facet |
Ice drill |
description |
The Little Ice Age (LIA) is one of the most prominent climate shifts in the past 5000 yrs. It has been suggested that the LIA might be the most recent of the Dansgaard-Oeschger events, which are better known as abrupt, large scale climate oscillations during the last glacial period. If the case, then according to Broecker (2000a, 2000b) Antarctica should have warmed during the LIA, when the Northern Hemisphere was cold. Here we present new data from the Ross Sea, Antarctica, that indicates surface temperatures were ~2 °C colder during the LIA, with colder sea surface temperatures in the Southern Ocean and/or increased sea-ice extent, stronger katabatic winds, and decreased snow accumulation. Whilst we find there was large spatial and temporal variability, overall Antarctica was cooler and stormier during the LIA. Although temperatures have warmed since the termination of the LIA, atmospheric circulation strength has remained at the same, elevated level. We conclude, that the LIA was either caused by alternative forcings, or that the sea-saw mechanism operates differently during warm periods. : A 180m deep ice core was drilled at the local ice divide of Victoria Lower Glacier in the McMurdo Dry Valleys. This record here represents the top 50m of the core, capturing the time from 1140-2000 AD. The record has been dated using volcanic signatures in SO4 concentrations. |
format |
Article in Journal/Newspaper |
author |
Bertler, Nancy A Mayewski, Paul Andrew Carter, Lionel |
author_facet |
Bertler, Nancy A Mayewski, Paul Andrew Carter, Lionel |
author_sort |
Bertler, Nancy A |
title |
Deuterium isotope ratios of Victoria Lower Glacier Ice Core, supplement to: Bertler, Nancy A; Mayewski, Paul Andrew; Carter, Lionel (2011): Cold conditions in Antarctica during the Little Ice Age — Implications for abrupt climate change mechanisms. Earth and Planetary Science Letters, 308(1-2), 41-51 |
title_short |
Deuterium isotope ratios of Victoria Lower Glacier Ice Core, supplement to: Bertler, Nancy A; Mayewski, Paul Andrew; Carter, Lionel (2011): Cold conditions in Antarctica during the Little Ice Age — Implications for abrupt climate change mechanisms. Earth and Planetary Science Letters, 308(1-2), 41-51 |
title_full |
Deuterium isotope ratios of Victoria Lower Glacier Ice Core, supplement to: Bertler, Nancy A; Mayewski, Paul Andrew; Carter, Lionel (2011): Cold conditions in Antarctica during the Little Ice Age — Implications for abrupt climate change mechanisms. Earth and Planetary Science Letters, 308(1-2), 41-51 |
title_fullStr |
Deuterium isotope ratios of Victoria Lower Glacier Ice Core, supplement to: Bertler, Nancy A; Mayewski, Paul Andrew; Carter, Lionel (2011): Cold conditions in Antarctica during the Little Ice Age — Implications for abrupt climate change mechanisms. Earth and Planetary Science Letters, 308(1-2), 41-51 |
title_full_unstemmed |
Deuterium isotope ratios of Victoria Lower Glacier Ice Core, supplement to: Bertler, Nancy A; Mayewski, Paul Andrew; Carter, Lionel (2011): Cold conditions in Antarctica during the Little Ice Age — Implications for abrupt climate change mechanisms. Earth and Planetary Science Letters, 308(1-2), 41-51 |
title_sort |
deuterium isotope ratios of victoria lower glacier ice core, supplement to: bertler, nancy a; mayewski, paul andrew; carter, lionel (2011): cold conditions in antarctica during the little ice age — implications for abrupt climate change mechanisms. earth and planetary science letters, 308(1-2), 41-51 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2011 |
url |
https://dx.doi.org/10.1594/pangaea.866368 https://doi.pangaea.de/10.1594/PANGAEA.866368 |
long_lat |
ENVELOPE(162.667,162.667,-77.300,-77.300) |
geographic |
Southern Ocean Ross Sea McMurdo Dry Valleys Victoria Lower Glacier |
geographic_facet |
Southern Ocean Ross Sea McMurdo Dry Valleys Victoria Lower Glacier |
genre |
Antarc* Antarctica Dansgaard-Oeschger events ice core McMurdo Dry Valleys Ross Sea Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctica Dansgaard-Oeschger events ice core McMurdo Dry Valleys Ross Sea Sea ice Southern Ocean |
op_relation |
https://dx.doi.org/10.1016/j.epsl.2011.05.021 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.866368 https://doi.org/10.1016/j.epsl.2011.05.021 |
_version_ |
1766268008173404160 |