PTCLM (pronounced either as point clime or Pee-Tee clime) is a Python script to help you set up PoinT CLM
simulations. It runs the CLM tools for you to get datasets set up, and copies them
to a location you can use them according to the
CLM_USRDAT_NAME naming convention. Then
it runs create_newcase for you and modifies the env settings and
namelist appropriately. PTCLM has a simple ASCII text file for storing basic
information for your sites. We also have complete lists for AmeriFlux and Fluxnet-Canada
sites, although we only have the meteorology data for one site. For other sites you
will need to obtain the meteorology data and translate it to a format that the CESM
DATM model can use. But, even without meteorology data PTCLM is useful to setup
datasets to run with standard CLM_QIAN data.
The original authors of PTCLM are: Daniel M. Ricciuto, Dali Wang, Peter E. Thornton, Wilfred M. Post all at Environmental Sciences Division, Oak Ridge National Laboratory (ORNL) and R. Quinn Thomas at Cornell University. It was then modified fairly extensively by Erik Kluzek at NCAR. We want to thank all of these individuals for this contribution to the CESM effort. We also want to thank the folks at University of Michigan Biological Stations (US-UMB) who allowed us to use their Fluxnet station data and import it into our inputdata repository, especially Gil Bohrer the PI on record for this site.
To get help on PTCLM1.110726 use the "--help" option as follows.
> cd scripts/ccsm_utils/Tools/lnd/clm/PTCLM > ./PTCLM.py --help
The output to the above command is as follows:
Here we give a simple example of using PTCLM1 for a straightforward case of running at the US-UMB Fluxnet site on bluefire where we already have the meteorology data on the machine. Note, see the Section called Converting AmeriFlux Data for use by PTCLM for permission information to use this data.
Example 6-1. Example of running PTCLM1 for US-UMB on bluefire
setenv CSMDATA /fis/cgd/cseg/csm/inputdata setenv MYCSMDATA $HOME/inputdata setenv SITE US-UMB setenv MYMACH bluefire setenv MYCASE testPTCLM # First link the standard input files to a location you have write access cd scripts ./link_dirtree $CSMDATA $MYCSMDATA # Next build all of the clm tools you will need cd ../models/lnd/clm/tools/mksurfdata gmake gmake clean cd ../mkdatadomain gmake gmake clean cd ../mkgriddata gmake gmake clean # next run PTCLM (NOTE -- MAKE SURE python IS IN YOUR PATH) cd ../../../../../scripts/ccsm_utils/Tools/lnd/clm/PTCLM ./PTCLM.py -m $MYMACH --case=$MYCASE --site=$SITE --csmdata=$MYCSMDATA \ --aerdepgrid --ndepgrid # NOTE: we use --aerdepgrid --ndepgrid so that you use the global # aerosol and Nitrogen deposition files rather than site-specific ones. cd ../../../../../$MYCASE # Finally configure, build, and run the case as normal