Regarding make change in domain file

[rajkmsaini]

Dear CESM USER,

Actually, I am new to use this CESM (cesm1_2_2) and exploring things.

Problem description:

I have a domain file . i.e.

domain.lnd.fv0.9x1.25_gx1v6.090309.nc

I want to do some operation on that for given below:

1.
mask (treat the particular region (lon1= 65, lon2=88, lat1=6, lat2=18) land fraction point as ocean by providing the ocean value)

2.
frac (replace land fraction point of particular region (lon1= 65, lon2=88, lat1=6, lat2=18) with ocean value)



Please kindly help me with how I can start solving this issue.

And which tool is suitable for this. Please let me know.

Thanks in advance.

 

[erik]

There are lot's of different tools that can read a NetCDF file and make the changes that you talk about. You could use one of the NetCDF Operator (NCO) tools (ncedit). Or you could use a language that can read NetCDF like NCL (NCAR Command Language) or Python, or Perl, or any number of scripting languages, as well as a compiled language like FORTRAN or C++. See the NetCDF documentation website at unidata regarding this.

If you modify the domain file for the land, if you are running a fully coupled case, you'll have to make the complementary change in the domain file for the ocean. If you are just running with CLM and stub or data ocean, just changing the one file will be sufficient.

 

[rajkmsaini]

Thank you for your suggestion.