• 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

    A three-dimensional, multinutrient, and size-structured ecosystem model for the North Atlantic

    Thumbnail
    View/Open
    2003GB002146.pdf (4.436Mb)
    Date
    2004-09-21
    Author
    Lima, Ivan D.  Concept link
    Doney, Scott C.  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/3393
    As published
    https://doi.org/10.1029/2003GB002146
    Keyword
     Ecosystem model; North Atlantic; Multinutrient; Size-structure; Silica limitation 
    Abstract
    We incorporate multinutrient and size-structured ecosystem dynamics into a three-dimensional ocean general circulation model for the North Atlantic. The model reproduces the magnitude and general spatial and temporal patterns in nutrients, chlorophyll and primary production seen in in situ (BATS, NABE, and OWSI) and satellite (SeaWiFS) data, showing substantial improvements over prior basin-scale simulations. Model skill is evaluated quantitatively against SeaWiFS data using a Taylor diagram approach. Model-data correlation R for the overall surface chlorophyll time-space distribution is ∼0.6, with comparable model and observed total variability. The agreement relative to satellite-based primary production is somewhat weaker (0.2 < R < 0.5). The simulations capture observed ecological characteristics, e.g., the dominance of picoplankton and episodic diatom blooms in the subtropics, nutrient-controlled plankton succession at higher latitudes, and associated seasonal/depth changes in new and regenerated production and particle export. In a sensitivity experiment that mimics behavior of simpler single-species models, removal of diatom silica limitation leads to major shifts in community structure and export and larger model-data errors similar to previous model studies. Model results also suggest that episodic diatom blooms at BATS may be related to interannual variations in the southward transport of nutrients, mainly SiO3, and plankton cells.
    Description
    Author Posting. © American Geophysical Union, 2004. 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 18 (2004): GB3019, doi:10.1029/2003GB002146.
    Collections
    • Marine Chemistry and Geochemistry (MC&G)
    Suggested Citation
    Global Biogeochemical Cycles 18 (2004): GB3019
     

    Related items

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

    • Thumbnail

      Structure and functioning of four North Atlantic ecosystems - a comparative study 

      Melle, Webjørn; Klevjer, Thor A.; Drinkwater, Ken F.; Strand, Espen; Naustvoll, Lars Johan; Wiebe, Peter; Aksnes, Dag L.; Knutsen, Tor; Sundby, Svein; Slotte, Aril; Dupont, Nicolas; Vea Salvanes, Anne Gro; Korneliussen, Rolf J.; Huse, Geir (Elsevier, 2020-09-11)
      The epi- and mesopelagic ecosystems of four sub-polar ocean basins, the Labrador, Irminger, Iceland and Norwegian seas, were surveyed during two legs from Bergen, Norway, to Nuuk, Greenland, and back to Bergen. The survey ...
    • Thumbnail

      Impact of eddy–wind interaction on eddy demographics and phytoplankton community structure in a model of the North Atlantic Ocean 

      Anderson, Laurence A.; McGillicuddy, Dennis J.; Maltrud, Mathew E.; Lima, Ivan D.; Doney, Scott C. (2010-12)
      Two eddy-resolving (0.1-degree) physical-biological simulations of the North Atlantic Ocean are compared, one with the surface momentum flux computed only from wind velocities and the other using the difference between air ...
    • Thumbnail

      Comparing food web structures and dynamics across a suite of global marine ecosystem models 

      Sailley, Sevrine F.; Vogt, Meike; Doney, Scott C.; Aita, M. N.; Bopp, Laurent; Buitenhuis, Erik T.; Hashioka, Taketo; Lima, Ivan D.; Le Quere, Corinne; Yamanaka, Yasuhiro (Elsevier, 2013-05-16)
      Dynamic Green Ocean Models (DGOMs) include different sets of Plankton Functional Types (PFTs) and equations, thus different interactions and food webs. Using four DGOMs (CCSM-BEC, PISCES, NEMURO and PlankTOM5) we explore ...
    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