forcing files for CAM5

[weili@psu_edu]

Hi there,

I have several questions concerning the the following forcings used in CAM5 (cam5 physics package).
1). Ozone. I found the ozone data that was used is: ozone_1.9x2.5_L26_2000clim_c091112.nc. Is this just 2000 data or calculated from many years average (if so, which years are used?)?
2). Solar. Which years are used to get solar_ave_sc19-sc23.c090810.nc?
3). SO2. ar5_mam3_so2_elev_2000_c090726.nc refers to data for 2000 rather than some years average?
4). ghg and volcanic. I found from https://svn-ccsm-inputdata.cgd.ucar.edu/trunk/inputdata/ that there are ghg data (e.g. ghg_1800-1999_c050502.nc) and volcanic data (e.g. CCSM4_volcanic_1850-2009_prototype1.nc) but didn't find them in the namelist used in CAM5. Under what kind of circumstance would these data be used?

Also, in AMIP run, all these forcings are same as climatological SST run, right?

Thanks in advance!

 

[hannay]

4). ghg and volcanic. I found from https://svn-ccsm-inputdata.cgd.ucar....unk/inputdata/ that there are ghg data (e.g. ghg_1800-1999_c050502.nc) and volcanic data (e.g. CCSM4_volcanic_1850-2009_prototype1.nc) but didn't find them in the namelist used in CAM5. Under what kind of circumstance would these data be used?

You will get the time varying ghg and volcano when you use a compset with time-varying forcing (for instance: F_AMIP_CAM5 compset.) You won't get it with a constant forcing compset (for instance F_2000_CAM5)

 

[weili@psu_edu]

Thanks, Hannay! Do you have answer for my questions 1-3?