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|a Timing of Meltwater Pulse 1a and climate responses to meltwater injections |h [electronic resource]. |
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|a Paleoceanography Volume 21. |
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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 temporal relationship between meltwater pulse 1a (mwp-1a) and the climate history of the last
deglaciation remains a subject of debate. By combining the Greenland Ice Core Project d18O ice core record on
the new Greenland ice core chronology 2005 timescale with the U/Th-dated Barbados coral record, we
conclusively derive that mwp-1a did not coincide with the sharp Bølling warming but instead with the abrupt
cooling of the Older Dryas. To evaluate whether there is a relationship between meltwater injections, North
Atlantic Deep Water (NADW) formation, and climate change, we present a high-resolution record of NADW
flow intensity from Eirik Drift through the last deglaciation. It indicates only a relatively minor 200-year
weakening of NADW flow, coincident with mwp-1a. Our compilation of records also indicates that during
Heinrich event 1 and the Younger Dryas there were no discernible sea level rises, and yet these periods were
characterized by intense NADW slowdowns/shutdowns. Clearly, deepwater formation and climate are not
simply controlled by the magnitude or rate of meltwater addition. Instead, our results emphasize that the location
of meltwater pulses may be more important, with NADW formation being particularly sensitive to surface
freshening in the Arctic/Nordic Seas. |
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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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|t Timing of Meltwater Pulse 1a and climate responses to meltwater injections |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15060977/00001 |y Click here for full text |
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|3 Host material |u http://onlinelibrary.wiley.com/doi/10.1029/2006PA001340/full","http://onlinelibrary.wiley.com/doi/10.1029/2006PA001340/full |y Timing of Meltwater Pulse 1a and climate responses to meltwater injections |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/09/77/00001/Stanford et al_2006_Timing of meltwater pulse 1a and climate responses to meltwater injectionsthm.jp |