[MITgcm-support] mnc output problem-multiple time step

[Matthew Mazloff]

Hi Abbas,

your time step is 60 seconds starting at 0 sec -- the model never  
calculates the state at 400 seconds.  change your time step to 50  
seconds or your dump freq. to a multiple of 60 (your time step)

-Matt


On Feb 4, 2009, at 5:52 PM, Abbas Dorostkar wrote:

> Dear all,
>
> Recently, I am getting mnc output with different time steps of 420  
> and 360 sec though I have defined the dump frequency as 400 sec. I  
> have not changed my set up but I have no clue why I get this  
> problem. Please let me know if you have any idea .
>
> Thanks
>
> Abbas
>
>
>
> P.S I have attached my data file as follows:
>
>
>
>   Continuous equation parameters
>
>  &PARM01
>
>  Tref =,
>
>  sRef=0.,
>
>  viscAz=1.E-3,
>
>  viscAh=0.0E-2,
>
> viscC2smag=1.,
>
> viscAhGridMax=0.5,
>
>  viscC2Leith=1.,
>
> viscA4=0.E12,
>
>  no_slip_sides=.FALSE.,
>
>  no_slip_bottom=.TRUE.,
>
>  bottomDragQuadratic=0.001,
>
>  diffKhT=1.E-7,
>
>  diffKzT=1.E-7,
>
>  f0=0.0,
>
>  beta=0.E-11,
>
>  tAlpha=2.E-4,
>
> sBeta =0.E-4,
>
>  gravity=9.81,
>
>  gBaro=9.81,
>
>  rigidLid=.FALSE.,
>
>  implicitFreeSurface=.TRUE.,
>
>  eosType='MDJWF',
>
>  nonHydrostatic=.FALSE.,
>
>  readBinaryPrec=64,
>
>  writeBinaryPrec=32,
>
>  writeStatePrec=32,
>
>  saltStepping=.FALSE.,
>
>  hFacMin=0.5,
>
>  implicitViscosity=.TRUE.,
>
>  implicitDiffusion=.TRUE.,
>
>  tempAdvScheme=33,
>
>  exactConserv=.TRUE.
>
>   staggerTimeStep=.TRUE.,
>
>
>
> # Gridding ptic solver parameters
>
>  &PARM02
>
>  cg2dMaxIters=1000,
>
>  cg2dTargetResidual=1.E-12,
>
>  cg3dMaxIters=300,
>
>  cg3dTargetResidual=1.E-12,
>
>  &
>
>
>
> # Time stepping parameters
>
>  &PARM03
>
>  niter0=0,
>
>  startTime=0.0,
>
>  endTime=43200,
>
> # nTimeSteps=17280,
>
>  deltaT=60.,
>
>  abEps=0.1,
>
>  pChkptFreq=0.0,
>
>  chkptFreq=0.0,
>
>  dumpFreq=400,
>
>  monitorFreq=1000,
>
>  &
>
>
>
>
>
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