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Question about the FMC_GC variable generated in the wrfinput_dXX file after running real.exe in the WRF-Fire model

W

wrf_fire_user_reserher

New member
Hello!

I have a question about the FMC_GC variable generated in the wrfinput_dXX file after running real.exe in the WRF-Fire model.
netcdf wrfinput_d03 {
dimensions:

fuel_moisture_classes_stag = 5
float FMC_GC(Time, fuel_moisture_classes_stag, south_north, west_east) ;
FMC_GC:FieldType = 104 ;
FMC_GC:MemoryOrder = "XYZ" ;
FMC_GC:description = "fuel moisture contents by class" ;
FMC_GC:units = "1" ;
FMC_GC:stagger = "Z" ;
FMC_GC:coordinates = "XLONG XLAT XTIME" ;


1. I'm curious about the fuel_moisture_classes here. What do numbers 0 to 4 represent? I would appreciate if someone who knows about these classes in detail could provide an answer.

2. Ultimately, I want to use fuel moisture observation data as input data for the model.
I would appreciate if someone who knows the process related to this in detail could provide an answer.
 
You can find the description for this variable here: Fuel moisture model - openwfm
I haven't used the fuel model myself but I believe this part of the WRF-Fire code was implemented by the WRF-SFire group.

If you want to use observations for fuel moisture, you can replace the data in the arrays in your wrfinput file. You can write a python script to read the data and overwrite it with the values you want. The NCAR group has done this for FMC_G in the past, which will work even if the namelist option to use the fuel model is off. I don't have experience with the fuel model from WRF-SFire, but if you have any issues with it, I'd recommend you reach out to the WRF-SFire group.
 
Could you please share an example Python script file that reads the data and overwrites it with desired values? I would really appreciate it.
frediani said:
You can find the description for this variable here: Fuel moisture model - openwfm
I haven't used the fuel model myself but I believe this part of the WRF-Fire code was implemented by the WRF-SFire group.

If you want to use observations for fuel moisture, you can replace the data in the arrays in your wrfinput file. You can write a python script to read the data and overwrite it with the values you want. The NCAR group has done this for FMC_G in the past, which will work even if the namelist option to use the fuel model is off. I don't have experience with the fuel model from WRF-SFire, but if you have any issues with it, I'd recommend you reach out to the WRF-SFire group.
Click to expand...
Could you please share an example Python script file that reads the data and overwrites it with desired values? I would really appreciate it.
 
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