[RegCNET] Time Step Vs. Makefile

[Owanda Otieno]

Dear all,

I am currently doing simulations at 20KM resolution. I had done some
simulation before and successful runs completed with the following
$timeparam settings

              &timeparam
               radfrq     =    30.,
               abemh   =    18.,
               abatm    =   120.,
               dt          =   60.,
I am currently continueing with sensitivity test over the same domain and
period. I have only modified LANDUSE file in Terrain directory and changed
FUDGE_LND/FUDGE_LND_s
in domain.param. with the same &timeparam settings as in above, the runs
results are NaN as shown in a section below;

maximum time =  121.000 days.
 time step =   60.00 seconds
 dx =  20000. meters
 grid points (x,y) = (154, 78)
 number of levels = 18
 constant hor. diff. coef. =  0.10000E+05 m*m/s
 maximum  hor. diff. coef. =  0.10417E+06 m*m/s
 READING INITAL CONDITIONS  2000020100
 U
 V
 TA
 QV
 PS
 TS
           *** solar declination angle = -17.06 degrees.
 ozone profiles
   0.4963E-07
   0.4963E-07
   0.4963E-07
   0.5176E-07
   0.5267E-07
   0.5267E-07
   0.5765E-07
   0.6054E-07
   0.6700E-07
   0.7786E-07
   0.9469E-07
   0.1208E-06
   0.1616E-06
   0.2629E-06
   0.4754E-06
   0.8726E-06
   0.1494E-05
   0.3283E-05
   0.0000E+00
 dectim =    1440.00000000000
 BCs are ready from   2000020100   to   2000020106
 dt, dtau =    60.0000000000000        15.0000000000000
   30.0000000000000
0 linearization about standard atmosphere (lstand=.t.)
0sigmaf      0.00      5.000E-02  0.100      0.160      0.230
0.310      0.390      0.470      0.550      0.630      0.710
           0.780      0.840      0.890      0.930      0.960      0.980
0.990       1.00
0t mean      218.       218.       218.       218.       229.
239.       248.       255.       262.       268.       273.
            277.       280.       283.       285.       286.
287.       287.
0ps mean     100.
0 vertical mode problem completed for kx= 18     0 errors detected   (should
be 0)
 m, fac =            4   13.3333333333333
 m, fac =            2   24.0000000000000
 Writing output files in direct access format
mkdir: cannot create directory `output': File exists
 ******* OPENING NEW OUTPUT FILES:  2000020100
 OPENING NEW OUT FILE: output/ATM.2000020100
 OPENING NEW BAT FILE: output/SRF.2000020100
 OPENING NEW RAD FILE: output/RAD.2000020100
mkdir: cannot create directory `../PostProc': File exists
 OUT-history written date =    2000020100.00000
 BATS variables written at   2000020100   1.00000000000000
 Writing rad fields at ktau =            1  2000020100
     at day =    0.0340, ktau =         50 :  1st, 2nd time deriv of ps =
NaN         NaN        ,  no. of points w/convection =       0
     at day =    0.0688, ktau =        100 :  1st, 2nd time deriv of ps =
NaN         NaN        ,  no. of points w/convection =       0
     at day =    0.1035, ktau =        150 :  1st, 2nd time deriv of ps =
NaN         NaN        ,  no. of points w/convection =       0
[12]+  Stopped                 ./regcm.x

QN: What is wrong with my current settings, any idea please.
       Do change of Makefile in the Main directory affect time step
settings.

Really appreciated!
-- 
Owanda Otieno
Department of Natural Resources and the Environment
University of Connecticut
1376 Storrs Road, Unit 4087
Storrs, CT 06269-4087
Phone: (860) 486-1876
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