Now showing items 1-4 of 4

  • Baroclinic vortices over a sloping bottom 

    LaCasce, Joseph H. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-09)
    Nonlinear quasigeostrophic flows in two layers over a topographic slope are considered. The evolution depends on the size of two parameters which indicate the degree of nonlinearity at depth. The first measures the ...
  • Direct estimate of lateral eddy diffusivity upstream of Drake Passage 

    Tulloch, Ross; Ferrari, Raffaele; Jahn, Oliver; Klocker, Andreas; LaCasce, Joseph H.; Ledwell, James R.; Marshall, John C.; Messias, Marie-Jose; Speer, Kevin G.; Watson, Andrew J. (American Meteorological Society, 2014-10)
    The first direct estimate of the rate at which geostrophic turbulence mixes tracers across the Antarctic Circumpolar Current is presented. The estimate is computed from the spreading of a tracer released upstream of Drake ...
  • Reconstructing the ocean's interior from surface data 

    Wang, Jinbo; Flierl, Glenn R.; LaCasce, Joseph H.; McClean, Julie L.; Mahadevan, Amala (American Meteorological Society, 2013-08)
    A new method is proposed for extrapolating subsurface velocity and density fields from sea surface density and sea surface height (SSH). In this, the surface density is linked to the subsurface fields via the surface ...
  • Rossby wave instability and apparent phase speeds in large ocean basins 

    Isachsen, P. E.; LaCasce, Joseph H.; Pedlosky, Joseph (American Meteorological Society, 2007-05)
    The stability of baroclinic Rossby waves in large ocean basins is examined, and the quasigeostrophic (QG) results of LaCasce and Pedlosky are generalized. First, stability equations are derived for perturbations on large-scale ...