The critical parameter for resolving oceanic mesoscale motion is the Rossby baroclinic radius of deformation R (e.g., Gill 1982).
Similarly, in any given month of any decade, the mesoscale motion signatures emerge as repetitive features superimposed on the more pronounced seasonal decadal variability and on topographically induced quasi-stationary meanders.
The important conclusion derived from the modeldata comparison was that the cumulative impact of mesoscale motion on large-scale circulation dynamics is apparently of the same nature in both observed and modeled climatologies.
Impact of Mesoscale Motion on Surface Energy Balance.
Observations of boundary layer and land-surface processes suggest that land-surface characteristics and mesoscale motions are two important factors influencing the surface energy balance closure and the applicability of MOST.
Attention has also been paid to the impact of mesoscale motions on turbulent flux and MOST.
The energy balance closure problem, horizontally heterogeneous surface, mesoscale motions, and uncertainty in the turbulence observation are intertwined in the current research of boundary layer and land-surface process, which complicates the research.
The length of [tau] is critical, as it determines whether turbulent fluxes will be affected by mesoscale motions [15, 19].
To minimize the impact of mesoscale motions on turbulent fluxes, the multiresolution decomposition (MRD) method  was used to determine a reasonable averaging time.
To understand the effect of mesoscale motions on application of MOST, the flux-gradient and flux-variance relationships were studied by comparing these relationships when the mesoscale motions are excluded with those when the mesoscale motions are not excluded.
In order to understand the impact of mesoscale motions on MOST and the surface energy balance, three methods (experiments) were designed to exclude mesoscale motions, and their results were compared.