Dataset from : "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020 - QSR)
Datasets presented in the Quaternary Science Reviews article "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020; 10.1016/j.quascirev.2020.106542). Abstract: The respective impacts of Northern and So...
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Data Archiving and Networked Services (DANS)
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Online Access: | https://doi.org/10.17632/7rvd2mck58.1 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::b7001cbcf61631e46b32f466d92dc9a3 2023-05-15T13:43:37+02:00 Dataset from : "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020 - QSR) MARTIN, L Leo MARTIN 2020-01-01 https://doi.org/10.17632/7rvd2mck58.1 undefined unknown Data Archiving and Networked Services (DANS) http://dx.doi.org/10.17632/7rvd2mck58.1 lic_creative-commons oai:easy.dans.knaw.nl:easy-dataset:192434 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:192434 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 Interdisciplinary sciences geo envir Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.17632/7rvd2mck58.1 2023-01-22T17:23:46Z Datasets presented in the Quaternary Science Reviews article "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020; 10.1016/j.quascirev.2020.106542). Abstract: The respective impacts of Northern and Southern Hemispheric climatic changes on the Tropics during the last deglaciation remain poorly understood. In the High Tropical Andes, the Antarctic Cold Reversal (ACR, 14.3–12.9 ka BP) is better represented among morainic records than the Younger Dryas (12.9–11.7 ka BP). However, in the Altiplano basin (Bolivia), two cold periods of the Northern Hemisphere (Heinrich Stadial 1a, 16.5–14.5 ka BP, and the Younger Dryas) are synchronous with (i) major advances or standstills of paleoglaciers and (ii) the highstands of giant paleolakes Tauca and Coipasa. Here, we present new cosmic ray exposure (CRE) ages from glacial landforms of the Bolivian Andes that formed during the last deglaciation (Termination 1). We reconstruct the equilibrium line altitudes (ELA) associated with each moraine and use them in an inverse algorithm combining paleoglaciers and paleolake budgets to derive temperature and precipitation during the last deglaciation. Our temperature reconstruction (ΔT relative to present day) yields a consistent regional trend of progressive warming from ΔT = −5 to −2.5 °C during 17–14.5 ka BP, followed by a return to colder conditions around −4 °C during the ACR (14.5–12.9 ka BP). The Coipasa highstand (12.9–11.8 ka BP) is coeval with another warming trend followed by ΔT stabilization at the onset of the Holocene (ca. 10 ka BP), around −3 °C. Our results suggest that, during the last deglaciation (20–10 ka BP) atmospheric temperatures in the Tropical Andes mimicked Antarctic variability, whereas precipitation over the Altiplano was driven by changes in the Northern Hemisphere. Dataset Antarc* Antarctic Unknown Antarctic The Antarctic Ela ENVELOPE(9.642,9.642,63.170,63.170) The Altiplano ENVELOPE(163.917,163.917,-78.133,-78.133) |
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Open Polar |
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Unknown |
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unknown |
topic |
Interdisciplinary sciences geo envir |
spellingShingle |
Interdisciplinary sciences geo envir MARTIN, L Dataset from : "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020 - QSR) |
topic_facet |
Interdisciplinary sciences geo envir |
description |
Datasets presented in the Quaternary Science Reviews article "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020; 10.1016/j.quascirev.2020.106542). Abstract: The respective impacts of Northern and Southern Hemispheric climatic changes on the Tropics during the last deglaciation remain poorly understood. In the High Tropical Andes, the Antarctic Cold Reversal (ACR, 14.3–12.9 ka BP) is better represented among morainic records than the Younger Dryas (12.9–11.7 ka BP). However, in the Altiplano basin (Bolivia), two cold periods of the Northern Hemisphere (Heinrich Stadial 1a, 16.5–14.5 ka BP, and the Younger Dryas) are synchronous with (i) major advances or standstills of paleoglaciers and (ii) the highstands of giant paleolakes Tauca and Coipasa. Here, we present new cosmic ray exposure (CRE) ages from glacial landforms of the Bolivian Andes that formed during the last deglaciation (Termination 1). We reconstruct the equilibrium line altitudes (ELA) associated with each moraine and use them in an inverse algorithm combining paleoglaciers and paleolake budgets to derive temperature and precipitation during the last deglaciation. Our temperature reconstruction (ΔT relative to present day) yields a consistent regional trend of progressive warming from ΔT = −5 to −2.5 °C during 17–14.5 ka BP, followed by a return to colder conditions around −4 °C during the ACR (14.5–12.9 ka BP). The Coipasa highstand (12.9–11.8 ka BP) is coeval with another warming trend followed by ΔT stabilization at the onset of the Holocene (ca. 10 ka BP), around −3 °C. Our results suggest that, during the last deglaciation (20–10 ka BP) atmospheric temperatures in the Tropical Andes mimicked Antarctic variability, whereas precipitation over the Altiplano was driven by changes in the Northern Hemisphere. |
author2 |
Leo MARTIN |
format |
Dataset |
author |
MARTIN, L |
author_facet |
MARTIN, L |
author_sort |
MARTIN, L |
title |
Dataset from : "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020 - QSR) |
title_short |
Dataset from : "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020 - QSR) |
title_full |
Dataset from : "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020 - QSR) |
title_fullStr |
Dataset from : "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020 - QSR) |
title_full_unstemmed |
Dataset from : "Antarctic-like temperature variations in the Tropical Andes recorded by glaciers and lakes during the last deglaciation" (Martin et al., 2020 - QSR) |
title_sort |
dataset from : "antarctic-like temperature variations in the tropical andes recorded by glaciers and lakes during the last deglaciation" (martin et al., 2020 - qsr) |
publisher |
Data Archiving and Networked Services (DANS) |
publishDate |
2020 |
url |
https://doi.org/10.17632/7rvd2mck58.1 |
long_lat |
ENVELOPE(9.642,9.642,63.170,63.170) ENVELOPE(163.917,163.917,-78.133,-78.133) |
geographic |
Antarctic The Antarctic Ela The Altiplano |
geographic_facet |
Antarctic The Antarctic Ela The Altiplano |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
oai:easy.dans.knaw.nl:easy-dataset:192434 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:192434 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 |
op_relation |
http://dx.doi.org/10.17632/7rvd2mck58.1 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.17632/7rvd2mck58.1 |
_version_ |
1766191166891491328 |