… We study symmetric vortex merger in quasi-geostrophic flows using numerical simulations …
ratio of the vortices and compare with the barotropic case. During the merging of potential …

… merging distance between two equal-volume, equal-potentialvorticity quasi-geostrophic
vortices… of the flow can be fully described through knowledge of the vortex boundary shape. This …

… quasi-geostrophic model. The motivation for this study is the observation of the merger of
submesoscale vortices in the … of the flow, the merged vortex, but it is also able to characterize a …

… Recently, vortex merger in quasi-geostrophic flows has been studied by von Hardenberg
et al. (2000), Dritschel (2002) and Reinaud & Dritschel (2002). In von Hardenberg et al. …

… we find that the classical picture of vortex merger, ie complete merger, is extremely rare
and … This study has used the simplest model of a rotating, stratified flow, the quasigeostrophic …

… the vortices, as no external QG flow may move the point vortices … The merger of vertically
offset quasi-geostrophic vortices. J. … merger distance between two co-rotating quasi-geostrophic …

… consider flows under the quasi-geostrophic approximation, valid for oceanic vortex flows with
… This paper has not detailed the conditions of vortex merger under external strain. Although …

… In this case, we may say that the vortices have partially merged. … We define ˆVf as the ratio
of the volume of the largest vortex in the flow by the end of the simulation to the volume of the …

… The merger of a vortex doublet (two like-signed vortices) … stronger shear and merger efficiency
will be diminished. The … By surface jet (shear) flow, we mean a unidirectional flow along …

… is determined by the resistance of the vortex in the flow field due to the other vortex and
corotation. When we consider the flow field due to the smaller vortex, the flow field is similar to …