Takeaways and Suggestions from creating NRW namelists with WFE

[jjokella]

1. Fork (SimExp) of WFE for NRW-testcase: https://github.com/HPSCTerrSys/simexp_eCLM_bgcmode-NRW

2. Repo of namelists for NRW-testcase as used in FallSchool2025: https://github.com/HPSCTerrSys/namelist_eCLM_bgcmode-NRW

Goal of the exercise

Reproduce the namlists from 2. with the WFE in 1.

Suggestions

Loading TSMP2 environment file

Is sourcing the TSMP2 environment needed in sim.job?

TSMP2_workflow-engine/ctl/sim_ctl/sim.job

Line 22 in 8f88caa

source ${tsmp2_env}

For only generating namelists, I do not have to have a TSMP2 build ready. This leads to No such file or directory error. Also, I saw that the environment is additionally loaded specifically for the sim_run step.

Forcing files

NRW case runs the first 30 days of the year. In WFE, this loads forcing files until March.

TSMP2_workflow-engine/ctl/sim_ctl/sim_config.sh

Lines 148 to 157 in 8f88caa

	# calculation for automated adjustment of clm forcing
	# forcedate=$(date '+%s' -d "${datep1} + 1 month - 1 day")
	forcedate=$(date '+%s' -d "${datep1} + 1 month - 2 day")
	ldate="${startdate}"
	forcdatelist=""
	while [[ $(date +%s -d $ldate) -le $forcedate ]]; do
	forcdatelist+=$(echo "${ldate%-*}.nc\n")
	ldate=$(date '+%Y-%m-%d' -d "$ldate +1 month")
	done
	forcdatelist=${forcdatelist::-2} # delete last new line command

Streamfile TPQW

Different variable names

WFE:

    <variableNames>
      TBOT tbot
        WIND wind
        TDEW tdew
        FLDS lwdn
    </variableNames>

Namelist repo

    <variableNames>
      TBOT tbot
        WIND wind
        QBOT shum
        PSRF pbot
    </variableNames>

Input file directories

• common subdirectory replaced by input-file specific aero, emis, topo etc

datm_in differences

• dtlimit, mapalgo, tintalgo

drv_in differences

• model_version, username
• rof_cpl_dt
• addition of stop_tod

lnd_in differences

• maxpatch_pft: make input?
• use_crop

mosart_in differences

• frivinp_rtm

Formatting useful for comparison (maybe candidate for CI!?)

XML files

prettier --plugin=@prettier/plugin-xml --parser xml --xml-whitespace-sensitivity=ignore --xml-quote-attributes=single --write $xmlfile

Installation

npm install --save-dev --save-exact prettier
npm install -g prettier @prettier/plugin-xml

f90nml files

f90nml $nmlfile > temp.nml && mv temp.nml $nmlfile

Installation

pip install f90nml

[jjokella]

f90nml for changing namelist variable

f90nml $nmlfile -g clm_inparm -v use_crop=.false --patch > temp.nml && mv temp.nml $nmlfile

This would eliminate one of the differences in lnd_in. Maybe such commands could be used to enable the WFE-user for changing any variable.

Downside: Dependency on f90nml. Maybe dependency-free mode can also be preserved side-by-side (optional "change any variable"-mode).