Porting WRF-SFIRE fuel moisture model to WRF4

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Initial progress

Testing of fmc_g added

Get the test code:

git clone ssh://git@github.com/openwfm/WRF-Fire-merge.git
cd WRF-Fire-merge
git checkout added-fmc_g
git log

to make sure you are at commit 132444f0db67544179c7998f5653c488dd41e836 . Build on kingspeak following How_to_build_WRF4#University_of_Utah_CHPC and run the basic hill test case:

cd test/em_fire
./ideal.exe
./wrf.exe >& wrf.log &

This will use fuel moisture from namelist.fire. To read fmc_g from wrfinput, set

fire_fmc_read=0

in namelist input. This will change as more of wrf-fire is merged in. In any case, fmc_g in wrfinput has to be set by other means, such as using ncreplace in Matlab.

To run real problem, build WPS for this WRF. Variable fmc_g should be in wrfinput but not set, you have to set it by other means.

Testing to be done:

  • WRF4 built from branch develop and this version should give the same results (with fire_fmc_read=0 in namelist.input, or not set)
  • From the testing I have already done it seems that the code is slow. I do not know why. I do not know if that is already the case for WRF4 (currently at 4.0.3). Compare speed with wrf-fire on the hill problem.
  • A real problem

Continued progress

The WRF4 code with the fuel moisture model from wrf-fire is being created in branch fuel-moisture-model. It is not ready for testing yet.

The original plan (one out of several actually)

Too much complexity. There were quite a few conflicts already in cherry pick to 3cdb542af7ce submitted to 3.3 where not much changed. After a day or so, I decided I may as well do it right.

See also