mesoscale eddies

mesoscale eddies

[′me·zō‚skāl ′ed·ēz]
(oceanography)
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The model that the researchers developed for ocean mixing leads to an improved understanding of these mesoscale eddies and how they mix the waters.
Since mesoscale eddies markedly affect monthly variations in chlorophyll-a sea surface temperature, and the other characteristics of the upper layer (Piontkovski et al.
In some way, seasonal fluctuations of sardine landings and their regional differences might be influenced by mesoscale eddies propagating through the coastal waters.
The observed trajectories reflect a variety of phenomena, characteristic to the current field of the Gulf of Finland (Figs 4, 5): the presence of relatively small mesoscale eddies with a diameter of about 5 km to the north of Naissaar, inertial oscillations in the open part of the gulf to the north of Pakri Peninsula and further north of Naissaar, and relatively rapid almost straight alongshore drift apparently steered by topography.
This phenomenon may have been caused by the impact of relatively small mesoscale eddies with a diameter as small as about 400 m.
The Northern Gulf of Mexico is frequently impacted by mesoscale eddies.
Such models, however, may overlook some of the dynamic features in the Gulf of Finland where resolving the dynamics of mesoscale eddies (at least in terms of their statistics) requires the use of a horizontal resolution down to 1 NM or even less.
The proportion of such cases apparently reflects the probability of occurrence of highly divergent areas of the surface flow, for example, areas where mesoscale eddies come close to each other.
Numerical Studies of Mesoscale Eddies Using Quasigeostrophic and Primitive Equation Ocean Models, National Center for Atmospheric Research (NCAR) Cooperative Thesis No.
The role of mesoscale eddies in the general circulation of the ocean-Numerical experiments using a wind-driven quasi-geostrophic model, J.
However, most of the current climate models use resolutions (spacing between two adjacent grids) on the order of 100 kilometers or coarser, too coarse to explicitly resolve the spatial structures of mesoscale eddies.
Besides the dominant vertical mixing mechanism (vertical convection during the cold seasons) there are other processes that drive vertical mixing in the Baltics such as mesoscale eddies, coastal upwellings, internal waves, etc.