[Wrf-users] Boundary condition: Seeking suggestion

[Gautam Bisht]

Hi,

I am a graduate student and seeking some suggestion for my research.  
I am new to amospheric sci, so pardon me if my query is naive.

I am trying to study the effect of vegetation controlled by  
topography on the regional climate. For the purpose, I am coupling a  
home-grown LSM model with WRF. I want to run long simulations (of the  
order of decades).

In order to isolate the effects of vegetation on the regional climate  
from other large scale atmospheric processes, I was planning to use  
cyclic boundary conditions. I have am doubts about this approach now  
that running the model that long with cyclic conditions would  
eventually result in loss of energy of the system. So here is my  
question: Is there a way prescribe a synoptic forcing to WRF while  
using cyclic boundary conditions?

I also noticed that for "real" cases, 4D arrays of boundary values as  
well as their tendencies are used in lateral boundary condition  
files. Is what I am trying to achieve is basically forcing the model  
with "real tendencies" while having cyclic boundary conditions?

Any suggestions/comments would be greatly appreciated.

With regards,
-Gautam.

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