1. www.ccsm.ucar.edu Changing the CCSM setup: Active Ocean plus Data Models Nancy Norton ccsm@ucar.edu

2. www.ccsm.ucar.edu Quick Summary Download CCSM2.0 source code, scripts, and input datasets Set up active ocean + data atm,ice,lnd -- use the GUI!!! Edit the ocean-model namelist file: pop_in Edit the ocn.setup.csh script Run one-month test run Wait for CCSM2.0.1 release before making production runs!

3. www.ccsm.ucar.edu CCSM code,scripts, and data directories CCSM2.0 ------------------------------|------------------------- | | ccsm2.0/ inputdata/ ----------------- | | | atm/ ice/ lnd/ ocn/ models/ scripts/ | --------|-----------| ocn/ gui_run/ test.a1/ | | | pop/ ccsm_gui.pl *.setup.csh | test.a1.run input_templates/ gx1v3_pop_in

4. www.ccsm.ucar.edu Download CCSM2.0 source code, scripts, and input datasets On local system: –mkdir CCSM2.0 Go to the CCSM2.0 website: www.ccsm.ucar.edu/models/ccsm2.0 www.ccsm.ucar.edu/models/ccsm2.0 –Find Model Source Code section Download ccsm2.0.tar.gz into CCSM2.0 directory –Find Model Input Data section Download T42/gx1v3 input datasets tar file into CCSM2.0 directory On local system: –cd CCSM2.0 –gunzip ccsm2.0.tar.gz –tar -xvf ccsm2.0.tar

5. www.ccsm.ucar.edu Download CCSM2.0 source code, scripts, and input datasets CCSM2.0 ------------------------------|------------------------- | | | ccsm2.0/ ccsm2.0.tar inputdata/ | | ----------------- atm/ ice/ lnd/ ocn/ | | models/ scripts/ | --------|------------| ocn/ gui_run/ test.a1/ | | | pop/ ccsm_gui.pl *.setup.csh | test.a1.run input_templates/ gx1v3_pop_in

6. www.ccsm.ucar.edu Set up active ocean + data atm,ice,lnd Set up a new directory with a collection of scripts to run the active ocean + data atmosphere, ice, and land models through the coupler -- use the GUI!!! How do you use the GUI?

7. www.ccsm.ucar.edu How do you use the GUI? CCSM2.0 ------------------------------|------------------------- | | ccsm2.0/ inputdata/ ----------------- | | | atm/ ice/ lnd/ ocn/ models/ scripts/ | --------|------------| ocn/ gui_run/ test.a1/ | | | pop/ ccsm_gui.pl *.setup.csh | test.a1.run input_templates/ gx1v3_pop_in

8. www.ccsm.ucar.edu How do you use the GUI? cd CCSM2.0/ccsm2.0/scripts/gui_run issue the perl command: ccsm_gui.pl the GUI will pop up select “C” run: active ocean, coupler, and data atmosphere, ice, and land: –ocn.setup.csh –cpl.setup.csh –datm.setup.csh –dice.setup.csh –dlnd.setup.csh

9. www.ccsm.ucar.edu

10. CCSM2.0 GUI Status Window

11. www.ccsm.ucar.edu New directory generated by GUI: newtest.001 CCSM2.0 ------------------------------|------------------------- | | ccsm2.0/ inputdata/ ----------------- | | | atm/ ice/ lnd/ ocn/ models/ scripts/ | --------|----------|--------------| ocn/ gui_run/ test.a1/ newtest.001/ | | | | pop/ ccsm_gui.pl *.setup.csh *.setup.csh | test.a1.run newtest.001.run input_templates/ gx1v3_pop_in

12. www.ccsm.ucar.edu Edit the ocean-model namelist file: pop_in cd CCSM2.0/ccsm2.0/scripts/newtest.001 mkdir src.ocn cd src.ocn cp CCSM2.0/ccsm2.0/models/ocn/pop/ input_templates/gx1v3_pop_in. edit gx1v3_pop_in

13. www.ccsm.ucar.edu Edit personal copy of gx1v3_pop_in CCSM2.0 ------------------------------|------------------------- | | ccsm2.0/ inputdata/ ----------------- | | | atm/ ice/ lnd/ ocn/ models/ scripts/ | --------|----------|--------------| ocn/ gui_run/ test.a1/ newtest.001/ | | | | pop/ ccsm_gui.pl *.setup.csh *.setup.csh | test.a1.run newtest.001.run input_templates/ src.ocn/ gx1v3_pop_in | ---------------------------> gx1v3_pop_in

14. www.ccsm.ucar.edu 1. &forcing_shf_nml luse_cpl_ifrac =.true. 2. &ice_nml lactive_ice =.false. 3. probably one new namelist parameter will be released with CCSM2.0.1 -- will be announced if needed Edit gx1v3_pop_in

15. www.ccsm.ucar.edu Edit the ocn.setup.csh script cd CCSM2.0/ccsm2.0/scripts/newtest.001 edit ocn.setup.csh : –note line in ocn.setup.csh script: set my_path = $SCRIPTS/src.ocn –change sed -f $EXEDIR/commands.sed $SRCDIR/input_templates/${OCN_GRID}_pop_in to sed -f $EXEDIR/commands.sed $my_path/${OCN_GRID}_pop_in …

16. www.ccsm.ucar.edu Edit personal copy of gx1v3_pop_in CCSM2.0 ------------------------------|------------------------- | | ccsm2.0/ inputdata/ ----------------- | | | atm/ ice/ lnd/ ocn/ models/ scripts/ | --------|----------|--------------| ocn/ gui_run/ test.a1/ newtest.001/ | | | | pop/ ccsm_gui.pl *.setup.csh *.setup.csh | test.a1.run newtest.001.run input_templates/ src.ocn/ gx1v3_pop_in | ---------------------------> gx1v3_pop_in

17. www.ccsm.ucar.edu Wait for CCSM2.0.1 before running production runs! Datasets referenced in CCSM2.0 datm.setup.csh and dlnd.setup.csh are outdated and should not be used in production runs Datasets referenced in CCSM2.0.1 datm.setup.csh and dlnd.setup.csh will be obtained from active-atm, active-lnd branch run (an “F” run branched from the CCSM2.0 control run) Wait for CCSM2.0.1 release before running any production runs! Repeat preceding process with CCSM2.0.1 tar file.

18. www.ccsm.ucar.edu Running the “C” run The GUI set up a one-month test run for you -- now submit it to your target machine (llsubmit newtest.001.run on the IBM) Review the output from the *.log.* files from each component Review the output from the ocean log file -- all namelist values are echoed into the log file, so check to make certain that the changes you made to lactive_ice and luse_cpl_ifrac were actually used in your run Wait for the CCSM2.0.1 release before running the “C” run in production mode!