[Mitgcm-support] Re: checkpoint35

[mitgcm-support at dev.mitgcm.org]

Lets go for it. Heres a few mods to the change list

Note  genmake -rootdir=../../.. is broken.
      shouldn't the search for rootdir be based on the
      locations of the genmake file. e.g.
      dirname $0
      cd $0
      cd ../
      ROOTDIR=`pwd`

checkpoint35 is now available. It contains a number of 
changes aimed to help future development plans.

Summary of changes:

dynamics.F has been substantially re-written:
 c1. the time-stepping is no longer unrolled. This means that
     uVel, vVel, wVel, theta and salt contain the state variables
     at time=myCurrentTime for the entire span of dynamics.F
 c2. the staggered gravity wave time-stepping algorithm of the
     "classic" MITgcm can be enabled with a run-time flag
(staggerTimeStep)
 c3. added global 3-D arrays for wVel
calc_mom_rhs.F
 c4. something was not right with no-slip BCs over topography
     when using implicitViscosity
 c5. added linear and quadratic bottom drag terms
     (bottomDragLinear, bottomDragQuadratic)
Open Boundaries:
 c6. have been packaged
 c7. Orlanski code incorporated
Other new packages:
 c8. Shapiro filter
 c9. Zonal filters
c10. Atmospheric intermediate physics (AIM) (Franco Molteni)

New Features:
 nf1. support for adding alternate time-stepping methods/advection
schemes
 nf2. sets the stage for vector invariant form of equations
 nf3. simplifies implementing cubic spherical grid
 nf4. sets stage for reducing memory usage by half
 nf5. new genmake options 

Outstanding issues:
 ou1. sensitivity tests.
 ou2. Open boundary tests not fully validated.