Hello All,
           I am running RegCM3 Model,In the preprocessing stage i have got successful result after executing the .terrain.x and ./icbc.x schripts.
 
           After that i made a new directory in Regcm folder and copy regcm.in and regcm.x files from Commons folder and did necessary changes  in regcm.in file and run the regcm.x scripts but in the log file it is showing ps=NaN.
 
Please let me help to come over .  
 
 
  OUT-history written date =    2001010100.00000    
 BATS variables written at   2001010100   2.00000000000000    
 Writing rad fields at ktau =            1  2001010100
     at day =    0.0681, ktau =         50 :  1st, 2nd time deriv of ps =  0.632
82E-04 0.23108E-06,  no. of points w/convection =    2670
 BATS variables written at   2001010103   180.000000000000    
     at day =    0.1375, ktau =        100 :  1st, 2nd time deriv of ps =  0.697
89E-04 0.43143E-06,  no. of points w/convection =    2693
     at day =    0.2069, ktau =        150 :  1st, 2nd time deriv of ps =  NaN 
       NaN        ,  no. of points w/convection =     292
           *** solar declination angle = -22.96 degrees.
  dectim =    2880.00000000000    
 OUT-history written date =    2001010106.00000    
 BATS variables written at   2001010106  0.000000000000000E+000
 Writing rad fields at ktau =          180  2001010106
 BCs are ready from   2001010106   to   2001010112
     at day =    0.2764, ktau =        200 :  1st, 2nd time deriv of ps =  NaN 
       NaN        ,  no. of points w/convection =       0
     at day =    0.3458, ktau =        250 :  1st, 2nd time deriv of ps =  NaN 
       NaN        ,  no. of points w/convection =       0
 BATS variables written at   2001010109   180.000000000000    
     at day =    0.4153, ktau =        300 :  1st, 2nd time deriv of ps =  NaN 
       NaN        ,  no. of points w/convection =       0
     at day =    0.4847, ktau =        350 :  1st, 2nd time deriv of ps =  NaN 
       NaN        ,  no. of points w/convection =       0
           *** solar declination angle = -22.94 degrees.
  dectim =    4320.00000000000     
 
 
 
 
PracticeRun  Subdirectory in Commons Subdirectory  in below
 
fort.10  fort.101  output  postproc.in  regcm  regcm.in  regcm.x
 
 
 
 Below is regcm.in file which i have used . 
  $restartparam
 ifrest   =    .false.,
 idate0   = 2001010100,
 idate1   = 2001010100,
 idate2   = 2001010300,

 nslice  =        120,
 $
 $timeparam
 radfrq  =    30.,
 abemh   =    18.,
 abatm   =   600.,
 dt      =   120.,

 ibdyfrq =          6,
 $
 $outparam
 ifsave  = .true. ,
   savfrq  =    48.,
 iftape  = .true. ,
   tapfrq  =     6.,
 ifrad   = .true. ,
   radisp  =     6.,
 ifbat   = .true. ,
 ifsub   = .true. ,
   batfrq  =     3.,
 ifprt   = .false.,
   prtfrq  =    12.,
   kxout   =          6,
   jxsex   =         40,
 iotyp   =          1,
 ibintyp =          1,
 ifchem  = .true. ,
   chemfrq =     6.,
 $
 $physicsparam
 iboudy  =          5,
 ibltyp  =          1,
 icup    =          2,
   igcc    =          1,
 ipptls  =          1,
 iocnflx =          2,
 ipgf    =          0,
 lakemod =          0,
 ichem   =          0,
 $
 $subexparam
 ncld    =  3,
 qck1land = 0.00025,
 qck1oce  = 0.00025,
 cevap    = 1.0e-3,
 caccr    = 3.0,
 $
 $grellparam

 $
 $emanparam
 $
 $chemparam
 idirect   =    2,
 chtrname  =    'SO2',
 chtrsol   =  0.20,
 chtrdpv   = 0.00300,0.00800,
 dustbsiz  =  0.01, 1.00,
,


--
Rajesh Kumar Maurya
M.Sc(Tech)- Geophysics(Meteorology); Junior Research Fellow & Research Scholar
Department of Geophysics
Banaras Hindu University
Varanasi 221005