Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial?
The lack of climatic imprint left by the Meltwater Pulse-1A (≃14.5 ka BP), equivalent to a sea-level rise of 14 to 20 meters, is puzzling. Recent studies suggest the event might have occurred as a hyperpycnal flow in the Gulf of Mexico, preventing its detection in oceanic records throughout the Nort...
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ftvuamstcris:oai:research.vu.nl:publications/08fde028-5ec7-41d3-9bfe-d0aa850d96bc 2024-06-23T07:50:27+00:00 Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? Roche, D.M.V.A.P. Renssen, H. Weber, S.L. Goosse, H. 2007 application/pdf https://research.vu.nl/en/publications/08fde028-5ec7-41d3-9bfe-d0aa850d96bc https://doi.org/10.1029/2007GL032064 https://research.vu.nl/ws/files/2280814/204138.pdf eng eng https://research.vu.nl/en/publications/08fde028-5ec7-41d3-9bfe-d0aa850d96bc info:eu-repo/semantics/openAccess Roche , D M V A P , Renssen , H , Weber , S L & Goosse , H 2007 , ' Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? ' , Geophysical Research Letters , vol. 34 , pp. L24708 . https://doi.org/10.1029/2007GL032064 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2007 ftvuamstcris https://doi.org/10.1029/2007GL032064 2024-06-06T00:03:53Z The lack of climatic imprint left by the Meltwater Pulse-1A (≃14.5 ka BP), equivalent to a sea-level rise of 14 to 20 meters, is puzzling. Recent studies suggest the event might have occurred as a hyperpycnal flow in the Gulf of Mexico, preventing its detection in oceanic records throughout the North Atlantic. We present a suite of simulations with the LOVECLIM climate model, which mimic the effect of hyperpycnal flow under LGM conditions, in a first attempt to constrain its climatic effects. Analysing the ocean dynamics associated with the anomalous freshwater input, we show that the proposed mechanism is capable of sneaking a significant proportion of the MWP into the ocean (≃6 meters equivalent sea-level rise using our model under LGM boundary conditions). We also demonstrate that, in our model, the meridional circulation is more sensitive to such inputs in the Arctic Ocean than in the Gulf of Mexico. Copyright 2007 by the American Geophysical Union. Article in Journal/Newspaper Arctic Arctic Ocean North Atlantic Vrije Universiteit Amsterdam (VU): Research Portal Arctic Arctic Ocean Geophysical Research Letters 34 24 |
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Vrije Universiteit Amsterdam (VU): Research Portal |
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ftvuamstcris |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Roche, D.M.V.A.P. Renssen, H. Weber, S.L. Goosse, H. Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
The lack of climatic imprint left by the Meltwater Pulse-1A (≃14.5 ka BP), equivalent to a sea-level rise of 14 to 20 meters, is puzzling. Recent studies suggest the event might have occurred as a hyperpycnal flow in the Gulf of Mexico, preventing its detection in oceanic records throughout the North Atlantic. We present a suite of simulations with the LOVECLIM climate model, which mimic the effect of hyperpycnal flow under LGM conditions, in a first attempt to constrain its climatic effects. Analysing the ocean dynamics associated with the anomalous freshwater input, we show that the proposed mechanism is capable of sneaking a significant proportion of the MWP into the ocean (≃6 meters equivalent sea-level rise using our model under LGM boundary conditions). We also demonstrate that, in our model, the meridional circulation is more sensitive to such inputs in the Arctic Ocean than in the Gulf of Mexico. Copyright 2007 by the American Geophysical Union. |
format |
Article in Journal/Newspaper |
author |
Roche, D.M.V.A.P. Renssen, H. Weber, S.L. Goosse, H. |
author_facet |
Roche, D.M.V.A.P. Renssen, H. Weber, S.L. Goosse, H. |
author_sort |
Roche, D.M.V.A.P. |
title |
Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? |
title_short |
Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? |
title_full |
Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? |
title_fullStr |
Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? |
title_full_unstemmed |
Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? |
title_sort |
could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? |
publishDate |
2007 |
url |
https://research.vu.nl/en/publications/08fde028-5ec7-41d3-9bfe-d0aa850d96bc https://doi.org/10.1029/2007GL032064 https://research.vu.nl/ws/files/2280814/204138.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean North Atlantic |
genre_facet |
Arctic Arctic Ocean North Atlantic |
op_source |
Roche , D M V A P , Renssen , H , Weber , S L & Goosse , H 2007 , ' Could meltwater pulses have sneaked unnoticed into the deep ocean during the last glacial? ' , Geophysical Research Letters , vol. 34 , pp. L24708 . https://doi.org/10.1029/2007GL032064 |
op_relation |
https://research.vu.nl/en/publications/08fde028-5ec7-41d3-9bfe-d0aa850d96bc |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2007GL032064 |
container_title |
Geophysical Research Letters |
container_volume |
34 |
container_issue |
24 |
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1802641355531354112 |