Deuterium isotope ratios of Victoria Lower Glacier Ice Core
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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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.866368 2023-05-15T13:44:47+02:00 Deuterium isotope ratios of Victoria Lower Glacier Ice Core Bertler, Nancy A Mayewski, Paul Andrew Carter, Lionel LATITUDE: -77.330000 * LONGITUDE: 162.533000 2011-10-17 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.866368 https://doi.org/10.1594/PANGAEA.866368 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.866368 https://doi.org/10.1594/PANGAEA.866368 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY 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, https://doi.org/10.1016/j.epsl.2011.05.021 ICEDRILL Ice drill Ross Sea Region Antarctica VLG_DSS Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.866368 https://doi.org/10.1016/j.epsl.2011.05.021 2023-01-20T07:33:47Z 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. Dataset Antarc* Antarctica Dansgaard-Oeschger events ice core Ross Sea Sea ice Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Southern Ocean Ross Sea Victoria Lower Glacier ENVELOPE(162.667,162.667,-77.300,-77.300) ENVELOPE(162.533000,162.533000,-77.330000,-77.330000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ICEDRILL Ice drill Ross Sea Region Antarctica VLG_DSS |
spellingShingle |
ICEDRILL Ice drill Ross Sea Region Antarctica VLG_DSS Bertler, Nancy A Mayewski, Paul Andrew Carter, Lionel Deuterium isotope ratios of Victoria Lower Glacier Ice Core |
topic_facet |
ICEDRILL Ice drill Ross Sea Region Antarctica VLG_DSS |
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. |
format |
Dataset |
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 |
title_short |
Deuterium isotope ratios of Victoria Lower Glacier Ice Core |
title_full |
Deuterium isotope ratios of Victoria Lower Glacier Ice Core |
title_fullStr |
Deuterium isotope ratios of Victoria Lower Glacier Ice Core |
title_full_unstemmed |
Deuterium isotope ratios of Victoria Lower Glacier Ice Core |
title_sort |
deuterium isotope ratios of victoria lower glacier ice core |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.866368 https://doi.org/10.1594/PANGAEA.866368 |
op_coverage |
LATITUDE: -77.330000 * LONGITUDE: 162.533000 |
long_lat |
ENVELOPE(162.667,162.667,-77.300,-77.300) ENVELOPE(162.533000,162.533000,-77.330000,-77.330000) |
geographic |
Southern Ocean Ross Sea Victoria Lower Glacier |
geographic_facet |
Southern Ocean Ross Sea Victoria Lower Glacier |
genre |
Antarc* Antarctica Dansgaard-Oeschger events ice core Ross Sea Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctica Dansgaard-Oeschger events ice core Ross Sea Sea ice Southern Ocean |
op_source |
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, https://doi.org/10.1016/j.epsl.2011.05.021 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.866368 https://doi.org/10.1594/PANGAEA.866368 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.866368 https://doi.org/10.1016/j.epsl.2011.05.021 |
_version_ |
1766206476855017472 |