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

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    Article (538.3Kb)
    Additional file information (4.410Kb)
    Table S1: New radiocarbon dates for Chesapeake Bay sediment cores used in Figures 1 and 2 in this study. (9.393Kb)
    Table S2: Sea level datums for Chesapeake Bay sea level curve in Figure 3 of this study. (4.347Kb)
    Date
    2007-10-24
    Author
    Cronin, Thomas M.  Concept link
    Vogt, P. R.  Concept link
    Willard, Debra A.  Concept link
    Thunell, Robert C.  Concept link
    Halka, J.  Concept link
    Berke, M.  Concept link
    Pohlman, John W.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3348
    As published
    https://doi.org/10.1029/2007GL031318
    DOI
    10.1029/2007GL031318
    Keyword
     Sea-level rise; Holocene; 8.2 ka event 
    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 ~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 ~8.9–8.8 and ~8.2–7.6 ka when Chesapeake marshes were drown as sea level rose rapidly at least ~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.
    Description
    Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 34 (2007): L20603, doi:10.1029/2007GL031318.
    Collections
    • Energy and Geohazards
    Suggested Citation
    Geophysical Research Letters 34 (2007): L20603
     

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