[RegCNET] RegCM3

[bixq]

Hi,

On Fri, 14 Aug 2009, 290839410 wrote:

> recently I encountered some puzzles as following,
>
> 1, I wanted to simulate the climate of south of China in 2007 and 2008,with the datas of NNRP1 and SST(OI_WK) .
>  In the output file ATM.2007010100.ctl, I can use the Grads to plot air temperature from 2007010100 to 2007010612,however,I failed to plot since 2007010618,I finded that there were many NANs in the output data,so were
> other variables.I singly simulated Jan2007,there were the same errors.When I singly simulated Feb 2007 or June 2007 ,there were nothing wrong with that.

Computational instability happens (once there is NaN, most probably it's 
due to the computational instability). You can read the

https://lists.ictp.it/pipermail/regcnet/2009/001701.html
>
> 2, When simulated in Jan2008,SST(OI_WK), I executed icbc.x, then,Linux pointed out error :SST file is not the right one.
> I make sure that I have choosed OI_WK in domain.param SSTTYP.
> I changed SST data to OISST(monthly mean),it could be all right.

It's also strange to me. Did you use the latest code and the latest OI_WK 
data ?
>
> Simulation centre(24.27,118.06), 60 * 60 km, (iproj='NORMER').

Except you just focus on the southern part of China, I would suggest you
use LAMCON projection (and use 10 and 40 as the true latitudes).
>
Regards,
Bi Xunqiang