[RegCNET] RegCM running problem (NaN)

[xmengliu]

 Dear all:
     When I running RegCM from Dec23 2006 to Feb1 2007, I meet a problm:
 
 
                         ............
 
 BATS variables written at   2006122300   2.00000000000000     
Writing rad fields at ktau =            1  2006122300 
    at day =    0.0681, ktau =         50 :  1st, 2nd time deriv of ps =  0.74663E-04 0.27378E-06,  no. of points w/convection =     123 
BATS variables written at   2006122303   180.000000000000     
    at day =    0.1375, ktau =        100 :  1st, 2nd time deriv of ps =  0.61828E-04 0.25774E-06,  no. of points w/convection =     148 
    at day =    0.2069, ktau =        150 :  1st, 2nd time deriv of ps =  0.83809E-04 0.41155E-06,  no. of points w/convection =     110 
          *** solar declination angle = -23.41 degrees. 
 dectim =    2880.00000000000     
OUT-history written date =    2006122306.00000     
BATS variables written at   2006122306  0.000000000000000E+000 
Writing rad fields at ktau =          180  2006122306 
BCs are ready from   2006122306   to   2006122312 
    at day =    0.2764, ktau =        200 :  1st, 2nd time deriv of ps =  0.17990E-03 0.10383E-05,  no. of points w/convection =     126 
    at day =    0.3458, ktau =        250 :  1st, 2nd time deriv of ps =  0.40411E-03 0.25749E-05,  no. of points w/convection =     110 
BATS variables written at   2006122309   180.000000000000     
    at day =    0.4153, ktau =        300 :  1st, 2nd time deriv of ps =  0.86163E-03 0.56394E-05,  no. of points w/convection =     117 
    at day =    0.4847, ktau =        350 :  1st, 2nd time deriv of ps =  NaN         NaN        ,  no. of points w/convection =      53 
          *** solar declination angle = -23.41 degrees. 
 dectim =    4320.00000000000     
OUT-history written date =    2006122312.00000     
BATS variables written at   2006122312  0.000000000000000E+000 
Writing rad fields at ktau =          360  2006122312 
BCs are ready from   2006122312   to   2006122318 
    at day =    0.5542, ktau =        400 :  1st, 2nd time deriv of ps =  NaN         NaN        ,  no. of points w/convection =       0 
    at day =    0.6236, ktau =        450 :  1st, 2nd time deriv of ps =  NaN         NaN        ,  no. of points w/convection =       0 
BATS variables written at   2006122315   180.000000000000     
    at day =    0.6931, ktau =        500 :  1st, 2nd time deriv of ps =  NaN         NaN        ,  no. of points w/convection =       0 

 
 
 
I wonder what the problem is ? When I running from Jun25 2006 to Aug1 2006(in summer). No such problem.
 
in getdat.f
 
calday = dble(julday)+(NNNNNN-NSTRT0)/4.+(xtime/60.+gmt)/24. 
 
 
in file  regcm.in 

$restartparam 
ifrest  = .false. , 
idate0  = 2006122300, 
idate1  = 2006122300, 
idate2  = 2007010100, 
nslice  =        120, 
$ 
$timeparam 
radfrq  =    30., 
abemh   =    18., 
abatm   =   240., 
dt      =   120., 
ibdyfrq =          6, 
$ 

I have ever run by time step is 90s ,the NaN is remain.
 
Help me. Please! 
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