Opened 13 years ago
Closed 12 years ago
#81 closed help (fixed)
reconfigured ECMWF global dump
Reported by: | hanneke | Owned by: | um_support |
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Component: | UM Model | Keywords: | |
Cc: | Platform: | ||
UM Version: |
Description
Hello,
For one of my runs I am using a reconfigured ECMWF global start dump that Chang created for me. I noticed some differences compared to the UKMO start dump. For example, the boundary layer depth is constant globally (500m). After running reconfiguration and getting a start dump for my LAM, this is still the case. Isn't this a problem for the model run?
The reason I am looking into this is that my model run completes, but gives out mostly NaN's and shows this in the leave file:
==============================================
initial Absolute Norm : 281436461.073034465
GCR( 2 ) failed to converge in 100 iterations.
Final Absolute Norm : 725.022702810517217
==============================================
Atm_Step: Timestep 2
RHS zero so GCR( 2 ) not needed
============================================== (etc)
So my guess was that something is wrong with the start dump. I was wondering if things like the constant boundary layer depth could be causing this problem?
The start dump can be found here: /hpcx/home/n02/n02/hanneke/work/globaldumps/feb02/02022100.astart
The run I am working on is xcncc.
Cheers,
Hanneke
Change History (1)
comment:1 Changed 12 years ago by lois
- Resolution set to fixed
- Status changed from new to closed