Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [23631]
What is wrong with isopycnal diffusion in world ocean models?
Mathieu, P.-P.; Deleersnijder, E. (1998). What is wrong with isopycnal diffusion in world ocean models? Appl. Math. Modelling 22: 367-378. https://dx.doi.org/10.1016/S0307-904X(98)10008-2
In: Applied Mathematical Modelling. IPC Science and Technology Press/Elsevier Science: New York. ISSN 0307-904X; e-ISSN 1872-8480, more
Peer reviewed article  

Available in  Authors 

Keywords
    Audiovisual materials > Graphics > Map graphics > Isopleths > Isopycnics
    Modelling
    Motion > Water motion > Circulation > Water circulation > Ocean circulation
    Motion > Water motion > Circulation > Water circulation > Ocean circulation > Oceanic eddies > Mesoscale eddies
    Transport processes > Diffusion
    Marine/Coastal

Authors  Top 
  • Mathieu, P.-P., more
  • Deleersnijder, E., more

Abstract
    Coarse grid Ocean General Circulation Models (OGCMs) take into account the effect of unresolved mesoscale eddies by means of a rotated mixing operator which diffuses tracers (such as temperature or salinity) along surfaces of constant potential density called isopycnals. In spite of its profitable physical aspects, the discrete version of the isopycnal mixing parameterization can produce oscillations in the tracer fields, which disagrees with the well-known properties of diffusion operators. The causes of this non-monotonic behaviour of a diffusion operator are highlighted. The location and magnitude of these over-/under-shootings are examined in the results of an OGCM.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors