• Login
    About WHOAS
    View Item 
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Marine Chemistry and Geochemistry (MC&G)
    • View Item
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Marine Chemistry and Geochemistry (MC&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

    The impact of the North Atlantic Oscillation on the uptake and accumulation of anthropogenic CO2 by North Atlantic Ocean mode waters

    Thumbnail
    View/Open
    Article (2.383Mb)
    Figure S1: Comparison between hydrographic observations and model output of Canthro along the north-south A16 transect in the Atlantic Ocean. (1.069Mb)
    Figure S2: Comparison between hydrographic observations and model output along the north-south A16 transect in the Atlantic Ocean. (1.883Mb)
    Figure S3: Anthropogenic carbon inventory for the subtropical and subpolar gyres. (1.122Mb)
    Figure S4: Sensitivity of model isopycnal band anthropogenic carbon inventories to variable physics. (1.442Mb)
    Figure S5: Anthropogenic carbon inventory along subpolar mode water isopycnal bands. (1.002Mb)
    Figure S6: Change in anthropogenic carbon accumulation rate along subpolar mode water isopycnal bands. (862.2Kb)
    Figure S7: Driving factors for changes in the subtropical gyre Ianthro. (1.473Mb)
    Figure S8: Driving factors for changes in model subpolar Ianthro. (2.438Mb)
    Additional file information (3.147Kb)
    Table S1: Monthly coefficient of variation for the subtropical and subpolar gyre carbon pools and water mass volumes. (188.5Kb)
    Table S1: Monthly coefficient of variation for the subtropical and subpolar gyre carbon pools and water mass volumes. (68.29Kb)
    Text S1: These four sections include additional information pertaining to the analysis presented in the main text. (160.5Kb)
    Text S1: These four sections include additional information pertaining to the analysis presented in the main text. (55.40Kb)
    Date
    2011-09-21
    Author
    Levine, Naomi M.  Concept link
    Doney, Scott C.  Concept link
    Lima, Ivan D.  Concept link
    Wanninkhof, Rik  Concept link
    Bates, Nicholas R.  Concept link
    Feely, Richard A.  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/4857
    As published
    https://doi.org/10.1029/2010GB003892
    DOI
    10.1029/2010GB003892
    Keyword
     North Atlantic Oscillation; Anthropogenic carbon; Carbon cycle; Climate change; Global climate model; Mode waters 
    Abstract
    The North Atlantic Ocean accounts for about 25% of the global oceanic anthropogenic carbon sink. This basin experiences significant interannual variability primarily driven by the North Atlantic Oscillation (NAO). A suite of biogeochemical model simulations is used to analyze the impact of interannual variability on the uptake and storage of contemporary and anthropogenic carbon (Canthro) in the North Atlantic Ocean. Greater winter mixing during positive NAO years results in increased mode water formation and subsequent increases in subtropical and subpolar Canthro inventories. Our analysis suggests that changes in mode water Canthro inventories are primarily due to changes in water mass volumes driven by variations in water mass transformation rates rather than local air-sea CO2 exchange. This suggests that a significant portion of anthropogenic carbon found in the ocean interior may be derived from surface waters advected into water formation regions rather than from local gas exchange. Therefore, changes in climate modes, such as the NAO, may alter the residence time of anthropogenic carbon in the ocean by altering the rate of water mass transformation. In addition, interannual variability in Canthro storage increases the difficulty of Canthro detection and attribution through hydrographic observations, which are limited by sparse sampling of subsurface waters in time and space.
    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 Global Biogeochemical Cycles 25 (2011): GB3022, doi:10.1029/2010GB003892.
    Collections
    • Marine Chemistry and Geochemistry (MC&G)
    Suggested Citation
    Global Biogeochemical Cycles 25 (2011): GB3022
     

    Related items

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

    • Thumbnail

      CMIP5 model intercomparison of freshwater budget and circulation in the North Atlantic 

      Deshayes, Julie; Curry, Ruth G.; Msadek, Rym (American Meteorological Society, 2014-05-01)
      The subpolar North Atlantic is a center of variability of ocean properties, wind stress curl, and air–sea exchanges. Observations and hindcast simulations suggest that from the early 1970s to the mid-1990s the subpolar ...
    • Thumbnail

      Wintertime atmospheric response to North Atlantic Ocean circulation variability in a climate model 

      Frankignoul, Claude; Gastineau, Guillaume; Kwon, Young-Oh (American Meteorological Society, 2015-10-01)
      Maximum covariance analysis of a preindustrial control simulation of the NCAR Community Climate System Model, version 4 (CCSM4), shows that a barotropic signal in winter broadly resembling a negative phase of the North ...
    • Thumbnail

      Numerical investigations of seasonal and interannual variability of North Pacific Subtropical Mode Water and its implications for Pacific climate variability 

      Davis, Xujing Jia; Rothstein, Lewis M.; Dewar, William K.; Menemenlis, Dimitris (American Meteorological Society, 2011-06-01)
      North Pacific Subtropical Mode Water (NPSTMW) is an essential feature of the North Pacific subtropical gyre imparting significant influence on regional SST evolution on seasonal and longer time scales and, as such, is an ...
    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