Thank you for the clear explanation!!FCO2 is the net CO2 flux from the land to the atmosphere. It's normally inactive, but you can add it your history files using history namelist options (for example hist_fincl1 to add it to the first history series). It's a gridcell quantity so if you just want the the amount removed from forest you'd need to make some changes to to the code to only output over tree PFT's.
Thanks a lot! I was wondering about the by default cesm 2 what kind of land cover use and how to change that file and rerunI recommend studying the available materials on CLM5, particularly the User's Guide, Tutorial, and Technical Note found here:
Community Land Model (CLM) | Community Earth System Model
www.cesm.ucar.edu
Thanks, Keith. Do you have any hands-on tutorial examples? Also what compset would be appropriate to study the climate change signal by altering land use input?I don't know what FINN files are, but you can change land cover and land use on the surface and landuse datasets.
Those are the files pointed to by "fsurdat" and "flanduse_timeseries" in your CaseDocs/lnd_in file in your case directory.
See Chapters 2 and 27 of the technical note for a description of the default land cover/use
Thanks a lot! I was just wondering ScenarioMIP outputdata is are available in Cheyenne or Casper? If so, Please shareI don't think there are any tutorial examples for that specifically (changing landcover). The SSP clm compsets are appropriate for studying landcover change:
ISSP585Clm50BgcCrop : SSP585_DATM%GSWP3v1_CLM50%BGC-CROP_SICE_SOCN_MOSART_CISM2%NOEVOLVE_SWAV
ISSP126Clm50BgcCrop : SSP126_DATM%GSWP3v1_CLM50%BGC-CROP_SICE_SOCN_MOSART_CISM2%NOEVOLVE_SWAV
ISSP119Clm50BgcCrop : SSP119_DATM%GSWP3v1_CLM50%BGC-CROP_SICE_SOCN_MOSART_CISM2%NOEVOLVE_SWAV
ISSP245Clm50BgcCrop : SSP245_DATM%GSWP3v1_CLM50%BGC-CROP_SICE_SOCN_MOSART_CISM2%NOEVOLVE_SWAV
ISSP370Clm50BgcCrop : SSP370_DATM%GSWP3v1_CLM50%BGC-CROP_SICE_SOCN_MOSART_CISM2%NOEVOLVE_SWAV
ISSP434Clm50BgcCrop : SSP434_DATM%GSWP3v1_CLM50%BGC-CROP_SICE_SOCN_MOSART_CISM2%NOEVOLVE_SWAV
ISSP460Clm50BgcCrop : SSP460_DATM%GSWP3v1_CLM50%BGC-CROP_SICE_SOCN_MOSART_CISM2%NOEVOLVE_SWAV
ISSP534Clm50BgcCrop : SSP534_DATM%GSWP3v1_CLM50%BGC-CROP_SICE_SOCN_MOSART_CISM2%NOEVOLVE_SWAV
The most used ones are SSP585, SSP245, SSP126, SSP370. Each of those will have a different landuse_timeseries file. There are some plots here that show how landcover changes in these compsets:
If you want to study how landcover change interacts with climate change, then you can look at fully-coupled (active land, ocean, atmosphere, sea-ice, etc) versions of these simulations (ScenarioMIP). You can find those results on the Earth System Grid. Just use ScenarioMIP and CESM2 as search criteria.
Thank you ! Can I have a look at the submission script? For my experiment with 1 degree resolution or 0.5 if possible, I want to put present-day land cover change with present-day aerosol and run the coupled model.Output for selected variables is here:
/glade/collections/cdg/data/CMIP6/ScenarioMIP/NCAR/CESM2
The timeseries output is here:
/glade/campaign/collections/cmip/CMIP6/timeseries-cmip6
There might be other holdings elsewhere on glade. I'd post on the Community Projects Forum.