What
does LANS-a do to
the Rossby Radius?
normal
LANS-a, small a
Dispersion
relation
Solve for kR, the wavenumber of the Rossby Radius:
LANS-a makes the Rossby Radius
effectively larger.
LANS-a, larger a
kR
kR
Use
that to find
R*, the effective Rossby Radius, as a function of a:
*