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|a Links between early Holocene ice-sheet decay, sea-level rise and abrupt climate change |h [electronic resource]. |
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|a [S.l.] : |b Macmillan Publishers Limited, |c 2012-09. |
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|a Nature Geoscience Volume 5. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a The beginning of the current interglacial period, the Holocene epoch, was a critical part of the transition from glacial to interglacial climate conditions. This period, between about 12,000 and 7,000 years ago, was marked by the continued retreat of the ice sheets that had expanded through polar and temperate regions during the preceding glacial. This meltdown led to a dramatic rise in sea level, punctuated by short-lived jumps associated with catastrophic ice-sheet collapses. Tracking down which ice sheet produced specific sea-level jumps has been challenging, but two events between 8,500 and 8,200 years ago have been linked to the final drainage of glacial Lake Agassiz in north-central North America. The release of the water from this ice-dammed lake into the ocean is recorded by sea-level jumps in the Mississippi and Rhine-Meuse deltas of approximately 0.4 and 2.1 metres, respectively. These sea-level jumps can be related to an abrupt cooling in the Northern Hemisphere known as the 8.2 kyr event, and it has been suggested that the freshwater release from Lake Agassiz into the North Atlantic was sufficient to perturb the North Atlantic meridional overturning circulation. As sea-level rise on the order of decimetres to metres can now be detected with confidence and linked to climate records, it is becoming apparent that abrupt climate change during the early Holocene associated with perturbations in North Atlantic circulation required sustained freshwater release into the ocean. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a North atlantic region. |
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|a Torbjorn E. Tornqvist. |
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|t Links between early Holocene ice-sheet decay, sea-level rise and abrupt climate change |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15060946/00001 |y Click here for full text |
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|3 Host material |u http://www.nature.com/ngeo/journal/v5/n9/full/ngeo1536.html |y Links between early Holocene ice-sheet decay, sea-level rise and abrupt climate change |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/09/46/00001/Törnqvist_Hijma_2012_Links between early Holocene ice-sheet decay, sea-level rise and abrupt climate |
