• Login
    About WHOAS
    View Item 
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Geology and Geophysics (G&G)
    • View Item
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Geology and Geophysics (G&G)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of WHOASCommunities & CollectionsBy Issue DateAuthorsTitlesKeywordsThis CollectionBy Issue DateAuthorsTitlesKeywords

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Evidence from the Florida Straits for Younger Dryas ocean circulation changes

    Thumbnail
    View/Open
    2010PA002032.pdf (1.511Mb)
    Date
    2011-02-15
    Author
    Lynch-Stieglitz, Jean  Concept link
    Schmidt, Matthew W.  Concept link
    Curry, William B.  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/4410
    As published
    https://doi.org/10.1029/2010PA002032
    DOI
    10.1029/2010PA002032
    Keyword
     Florida Straits; Younger Dryas; Florida Current 
    Abstract
    The waters passing through the Florida Straits today reflect both the western portion of the wind-driven subtropical gyre and the northward flow of the upper waters which cross the equator, compensating North Atlantic Deep Water export as part of the large-scale Atlantic meridional overturning circulation. It has been postulated from various lines of evidence that the overturning circulation was weaker during the Younger Dryas cold event of the last deglaciation. We show here that the contrast in the oxygen isotopic composition of benthic foraminiferal tests across the Florida Current is reduced during the Younger Dryas. This most likely reflects a decrease in the density gradient across the channel and a decrease in the vertical shear of the Florida Current. This reduced shear is consistent with the postulated reduction in the Atlantic meridional overturning circulation. We find that the onset of this change in density structure and flow at the start of the Younger Dryas is very abrupt, occurring in less than 70 years.
    Description
    Author Posting. © American Geophysical Union, 2011. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 26 (2011): PA1205, doi:10.1029/2010PA002032.
    Collections
    • Geology and Geophysics (G&G)
    Suggested Citation
    Paleoceanography 26 (2011): PA1205
     

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      Increased hurricane frequency near Florida during Younger Dryas Atlantic Meridional Overturning Circulation slowdown 

      Toomey, Michael R.; Korty, Robert; Donnelly, Jeffrey P.; van Hengstum, Peter; Curry, William B. (2017-10)
      The risk posed by intensification of North Atlantic hurricane activity remains controversial, in part due to a lack of available storm proxy records that extend beyond the relatively stable climates of the late Holocene. ...
    • Thumbnail

      Acoustic tomography in the Straits of Florida 

      Chester, David B. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1989-09)
      Variability of the Florida Current has been monitored via acoustic tomography. A reciprocal tomography experiment was conducted in the eastern half of the Florida Straits during mid October and November, 1983. A triangular ...
    • Thumbnail

      Water column nitrate+nitrite d15N and d18O from samples collected during R/V Pelican and R/V F.G. Walton Smith cruises in the Gulf of Mexico and Florida Straits between 2011 and 2018 

      Knapp, Angela N. (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-11-26)
      This data set includes water column nitrate+nitrite d15N and d18O measurements from the Gulf of Mexico and Florida Straits. These measurements were used to address whether Mississippi River nitrate is entrained in Loop ...
    All Items in WHOAS are protected by original copyright, with all rights reserved, unless otherwise indicated. WHOAS also supports the use of the Creative Commons licenses for original content.
    A service of the MBLWHOI Library | About WHOAS
    Contact Us | Send Feedback | Privacy Policy
    Core Trust Logo