• Browse
    • Author
    • Year
    • Platform
    • Organizations
    • Programs
    • Research Networks
    • Type
  • Search
    • Simple
    • Advanced
  • About
    • About
    • Policies
    • Citation Guide
  • Login
    Logo Alfred Wegener Institut
    Logo Alfred Wegener Institut
    Alfred-Wegener-Institut
    Helmholtz-Zentrum für Polar-
    und Meeresforschung
    • Imprint
    • Contact
    • OAI
    • RSS 2.0

    EPIC.awi.de

    Home
    • Browse
      • Author
      • Year
      • Platform
      • Organizations
      • Programs
      • Research Networks
      • Type
    • Search
      • Simple
      • Advanced
    • About
      • About
      • Policies
      • Citation Guide
    • Login
      Login

      Assimilation of altimetric data and mean sea surface height into an eddy-permitting model of the North Atlantic

      Edit Item Edit Item

      General Information:

      Citation:
      Killworth, P. D. , Dieterich, C. , Le Provost, C. , Oschlies, A. and Willebrand, J. (2001): Assimilation of altimetric data and mean sea surface height into an eddy-permitting model of the North Atlantic , Progress in Oceanography, 48 (2), pp. 313-335 .
      Cite this page as:
      hdl:10013/epic.15575
      Contact Email:
      Peter.D.Killworth@soc.soton.ac.uk
      Related Data:

      Download:

      [img]
      Preview
      PDF (Fulltext)
      Kil2001a.pdf

      Download (612kB) | Preview
      Cite this document as:
      hdl:10013/epic.15575.d001
      Abstract:

      This paper shows that the mean flow of an eddy-permitting model can be altered by assimilationof surface height variability, providing that information about the mean sea surface is included,using an adaption of a statistical-dynamical method devised by Oschlies and Willebrand. Weshow that for a restricted depth range (about 1000 m), dynamical knowledge can make up for thenull space present in surface data whose temporal extent may be too short to distinguish betweenvertical modes. The lack of an accurate geoid has meant that most assimilation methods, whilerepresenting variability well, have been unable to modify the mean flow to any extent. However,we show that by including several approximate forms for the mean sea surface, the mean interiorflow in the upper kilometer can be rapidly adjusted towards reality by the assimilation, with thelocation of major current systems moved by hundreds of kilometers.

      Further Details:

      Item Type:
      Article
      Authors:
      Killworth, P. D. ; Dieterich, C. ; Le Provost, C. ; Oschlies, A. ; Willebrand, J.
      Divisions:
      Non-AWI items
      Programs:
      Basic Research > Helmholtz Independent Research
      Eprint ID:
      5007
      Logo Alfred Wegener Institut
      Alfred-Wegener-Institut
      Helmholtz-Zentrum für Polar-
      und Meeresforschung
      Logo Helmholtz

      • Browse
        • Author
        • Year
        • Platform
        • Organizations
        • Programs
        • Research Networks
        • Type
      • Search
        • Simple
        • Advanced
      • About
        • About
        • Policies
        • Citation Guide
      • Imprint
      • Contact
      • OAI
      © Alfred-Wegener-Institut