Update stability functions


INTERFACE:

   subroutine stabilityfunctions(nlev)
DESCRIPTION:

Based on the user's specifications in gotmtub.nml, this internal routine selects the desired stability functions defined in (46). These simple functions depend on $ \alpha_M$ and $ \alpha_N$ defined in (47), which are in most cases only used to compute the Richardson-number

$\displaystyle Ri = \dfrac{\alpha_N}{\alpha_M} \quad .$ (121)

A description of individual stability functions starts from section 4.28.


USES:

   IMPLICIT NONE
INPUT PARAMETERS:
   integer, intent(in)                 :: nlev
REVISION HISTORY:
   Original author(s): Hans Burchard, Karsten Bollding, Lars Umlauf



Karsten Bolding 2012-12-28