[RegCNET] problem running REGCM

[Carolina Cavazos Guerra]

Dear Regcm users:

I know this problem has been posted previously and I had an idea at first of how
resolve it, but I have tried all the posible solutions and doesn't work. The
problem is that my program crashes after certain time period, usually it
happends with the start of a new day, the message I got is:

7,  no. of points w/convection =    8
     at day =    0.6243, ktau =        900 :  1st, 2nd time deriv of ps = 
0.13017E-04 0.55921E-0
7,  no. of points w/convection =   16
 OUT-history written date =    2005030812.12500
 BATS variables written at   2005030815   180.000000000000
 Writing rad fields at ktau =          900  2005030815
 Chem variables written   2005030815
     at day =    0.6590, ktau =        950 :  1st, 2nd time deriv of ps = 
0.23339E-04 0.57786E-0
7,  no. of points w/convection =   10
     at day =    0.6937, ktau =       1000 :  1st, 2nd time deriv of ps =  NaN  
      NaN
 ,  no. of points w/convection =    0
     at day =    0.7285, ktau =       1050 :  1st, 2nd time deriv of ps =  NaN  
      NaN
 ,  no. of points w/convection =    0


I'm pretty sure I'm using the correct timestep, my horizontal resolution is 20
km, so the time parameters are:

$timeparam
 radfrq  =    30.,
 abemh   =    18.,
 abatm   =   120.,
 dt      =    60.,

I have done simulations with other resolutions 40, 60 km and they have succeed.
Am I missing an important point?

I really apreciate any help, thanks in advance





Carolina Cavazos Guerra
University College London
Department of Geography
Pearson Building, Gower Street
London, WC1E 6BT, UK