testing out max flux parameterization
some improvements to max flux parameterization. still has fudge factor and doesn't work really well
updating load_runs
roms_create checks for negative height
save east/west masks in csflux, asflux structures
add plots of surface velocity sections through eddy center and a plot_test1 empty function for the future.
plot shelfxt profile at given time instant with animate_zeta
added plotting of 0 vor contour to check eddy detection