Rapid sea level rise and ice sheet response to 8,200-year climate event
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Material Information

Title:
Rapid sea level rise and ice sheet response to 8,200-year climate event
Series Title:
Geophysical Research Letters Volume 34
Creator:
Cronin, T.M.
Vogt, P.R.
Willard, D.A.
Thunell, R.
Halka,J.
Berke, M.
Pohlman, J.
Publisher:
American Geophysical Union
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
Climate Change ( lcsh )
Sea Level Rise ( lcsh )
Atlantic Ocean Region ( lcsh )

Notes

Abstract:
The largest abrupt climatic reversal of the Holocene interglacial, the cooling event 8.6–8.2 thousand years ago (ka), was probably caused by catastrophic release of glacial Lake Agassiz-Ojibway, which slowed Atlantic meridional overturning circulation (AMOC) and cooled global climate. Geophysical surveys and sediment cores from Chesapeake Bay reveal the pattern of sea level rise during this event. Sea level rose [plus or minus]14 m between 9.5 to 7.5 ka, a pattern consistent with coral records and the ICE-5G glacio-isostatic adjustment model. There were two distinct periods at [plus or minus]8.9–8.8 and [plus or minus]8.2–7.6 ka when Chesapeake marshes were drown as sea level rose rapidly at least [plus or minus]12 mm yr-1. The latter event occurred after the 8.6–8.2 ka cooling event, coincided with extreme warming and vigorous AMOC centered on 7.9 ka, and may have been due to Antarctic Ice Sheet decay ( English )

Record Information

Source Institution:
Florida International University
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Sea Level Rise