[MITgcm-support] advection scheme

[Julie Deshayes]

hello,
I am running a configuration of the model at high latitude (f=1e-4 /s). 
my domain is 700km x 700km and the resolution is 10 km. I do not have as 
many eddies as I expected, so I am running some tests to decrease the 
values of viscAh and diffKhT that I am using now (see data file at the 
end of my email). I hope that this will give me more eddies. Besides, I 
am thinking of changing the advection scheme (currently centered 4th 
order) to a non-linear flux limited scheme. Would you recommend me to do 
that ? or, considering my configuration, what advection scheme would you 
recommend me to use ?
thank you in advance for your help,
Julie




# Model parameters
#
# Continuous equation parameters
  &PARM01
  readBinaryPrec=64,
  useSingleCpuIO=.TRUE.,
  tRef=  5.35, 5.20, 5.05, 4.9, 4.75, 4.6, 4.45, 4.3, 4.15, 4.0,
  sRef=10*10.,
  rigidLid=.FALSE.,
  implicitFreeSurface=.TRUE.,
  hFacMin=0.2,
  no_slip_sides=.TRUE.,
  no_slip_bottom=.TRUE.,
  bottomDragLinear=1.e-6,
  eosType='LINEAR',
  tAlpha=2.E-4,
  sBeta =0.,
  saltStepping=.FALSE.,
  tempAdvScheme=4,
  saltAdvScheme=4,
  diffKhT=120.,
  diffKzT=1.E-5,
  f0=1.0e-4,
  beta=0.E-11,
# useCDscheme=.FALSE.,
  useNHMTerms=.FALSE.,
  implicitDiffusion=.TRUE.,
  ivdc_kappa=1000.0,
  viscAz=2.E-4,
  viscAh=200.,
  &
#
# Elliptic solver parameters
  &PARM02
  cg2dMaxIters=1000,
  cg2dTargetResidual=1.E-11,
  &
#
# Time stepping parameters
  &PARM03
startTime=622080000.,
  endTime=933120000.,
  deltaT=1500.0,
  abEps=0.1,
  pChkptFreq=0.0,
  chkptFreq=311040000.,
  dumpFreq=311040000.,
# taveFreq=86400.,
  cAdjFreq=0,
  &