Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene ...
Arctic neoglaciation following the Holocene Thermal Maximum is an important feature of late-Holocene climate. We investigated this phenomenon using a transient 6000-year simulation with the CESM-CAM5 climate model driven by orbital forcing, greenhouse gas concentrations, and a land use reconstructio...
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ftdatacite:10.25384/sage.c.5020598.v1 2024-09-15T18:04:45+00:00 Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene ... Vavrus, Stephen J He, Feng Kutzbach, John E Ruddiman, William F 2020 https://dx.doi.org/10.25384/sage.c.5020598.v1 https://sage.figshare.com/collections/Rapid_neoglaciation_on_Ellesmere_Island_promoted_by_enhanced_summer_snowfall_in_a_transient_climate_model_simulation_of_the_middle-late-Holocene/5020598/1 unknown SAGE Journals https://dx.doi.org/10.25384/sage.c.5020598 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Geography History Collection article 2020 ftdatacite https://doi.org/10.25384/sage.c.5020598.v110.25384/sage.c.5020598 2024-09-02T09:49:50Z Arctic neoglaciation following the Holocene Thermal Maximum is an important feature of late-Holocene climate. We investigated this phenomenon using a transient 6000-year simulation with the CESM-CAM5 climate model driven by orbital forcing, greenhouse gas concentrations, and a land use reconstruction. During the first three millennia analyzed here (6–3 ka), mean Arctic snow depth increases, despite enhanced greenhouse forcing. Superimposed on this secular trend is a very abrupt increase in snow depth between 5 and 4.9 ka on Ellesmere Island and the Greenland coasts, in rough agreement with the timing of observed neoglaciation in the region. This transition is especially extreme on Ellesmere Island, where end-of-summer snow coverage jumps from nearly 0 to virtually 100% in 1 year, and snow depth increases to the model’s imposed maximum within 15 years. This climatic shift involves more than the Milankovitch-based expectation of cooler summers causing less snow melt. Coincident with the onset of the cold ... Article in Journal/Newspaper Ellesmere Island Greenland DataCite |
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Geography History |
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Geography History Vavrus, Stephen J He, Feng Kutzbach, John E Ruddiman, William F Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene ... |
topic_facet |
Geography History |
description |
Arctic neoglaciation following the Holocene Thermal Maximum is an important feature of late-Holocene climate. We investigated this phenomenon using a transient 6000-year simulation with the CESM-CAM5 climate model driven by orbital forcing, greenhouse gas concentrations, and a land use reconstruction. During the first three millennia analyzed here (6–3 ka), mean Arctic snow depth increases, despite enhanced greenhouse forcing. Superimposed on this secular trend is a very abrupt increase in snow depth between 5 and 4.9 ka on Ellesmere Island and the Greenland coasts, in rough agreement with the timing of observed neoglaciation in the region. This transition is especially extreme on Ellesmere Island, where end-of-summer snow coverage jumps from nearly 0 to virtually 100% in 1 year, and snow depth increases to the model’s imposed maximum within 15 years. This climatic shift involves more than the Milankovitch-based expectation of cooler summers causing less snow melt. Coincident with the onset of the cold ... |
format |
Article in Journal/Newspaper |
author |
Vavrus, Stephen J He, Feng Kutzbach, John E Ruddiman, William F |
author_facet |
Vavrus, Stephen J He, Feng Kutzbach, John E Ruddiman, William F |
author_sort |
Vavrus, Stephen J |
title |
Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene ... |
title_short |
Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene ... |
title_full |
Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene ... |
title_fullStr |
Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene ... |
title_full_unstemmed |
Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene ... |
title_sort |
rapid neoglaciation on ellesmere island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-holocene ... |
publisher |
SAGE Journals |
publishDate |
2020 |
url |
https://dx.doi.org/10.25384/sage.c.5020598.v1 https://sage.figshare.com/collections/Rapid_neoglaciation_on_Ellesmere_Island_promoted_by_enhanced_summer_snowfall_in_a_transient_climate_model_simulation_of_the_middle-late-Holocene/5020598/1 |
genre |
Ellesmere Island Greenland |
genre_facet |
Ellesmere Island Greenland |
op_relation |
https://dx.doi.org/10.25384/sage.c.5020598 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.25384/sage.c.5020598.v110.25384/sage.c.5020598 |
_version_ |
1810442370948268032 |