@article{discovery96866,
          volume = {39},
            note = {{\copyright} Copyright 2009 American Meteorological Society},
       publisher = {AMER METEOROLOGICAL SOC},
           title = {Gap-Leaping Vortical Currents},
           pages = {2665 -- 2674},
         journal = {Journal of Physical Oceanography},
            year = {2009},
           month = {October},
          number = {10},
            issn = {0022-3670},
        keywords = {WESTERN BOUNDARY CURRENT, POTENTIAL VORTICITY, COASTAL CURRENTS, UNIMAK PASS, FLOW, DYNAMICS, MOTION, VORTEX, TOPOGRAPHY, BARRIERS},
          author = {McDonald, NR and Johnson, ER},
             url = {http://dx.doi.org/10.1175/2009JPO4191.1},
        abstract = {A one-parameter family of exact solutions describing the bifurcation of a steady two-dimensional current with uniform vorticity near a gap in a thin barrier is found. The unsteady evolution of source-driven flows toward these steady states is studied using a version of contour dynamics, appropriately modified to take into account the presence of a barrier with a single gap. It is shown that some of the steady solutions are realizable as large-time limits of the source-driven flows, although some are not owing to persistent eddy-shedding events in the vicinity of the gap. For the special case when there is zero net flux through the gap, numerical experiments show that the through-gap flux of vortical fluid increases with the width of the gap and that this flux approaches a steady limit with time.}
}