Hi,
I am trying to determine a groundwater recharge value in CLM5. In CLM5, there is a zero-flux boundary condition at the base of the soil column. However, in the CLM5 history fields, I see a QCHARGE (aquifer recharge rate) variable. How is this calculated?
The CESM2 data from CMIP6 archived on Cheyenne's /glade/ system does not include the QCHARGE variable. This archived data does include output variables, "mrros - the total surface runoff leaving the land portion of the grid cell" and "mrro - the total runoff (including drainage through the base of the soil model) leaving the land portion of the grid cell". Am I correct in assuming that mrro - mrros would give the total sub-surface runoff in each grid cell? If yes, is this effectively the groundwater recharge value?
Thank you for any clarification.
Best,
Chris
I am trying to determine a groundwater recharge value in CLM5. In CLM5, there is a zero-flux boundary condition at the base of the soil column. However, in the CLM5 history fields, I see a QCHARGE (aquifer recharge rate) variable. How is this calculated?
The CESM2 data from CMIP6 archived on Cheyenne's /glade/ system does not include the QCHARGE variable. This archived data does include output variables, "mrros - the total surface runoff leaving the land portion of the grid cell" and "mrro - the total runoff (including drainage through the base of the soil model) leaving the land portion of the grid cell". Am I correct in assuming that mrro - mrros would give the total sub-surface runoff in each grid cell? If yes, is this effectively the groundwater recharge value?
Thank you for any clarification.
Best,
Chris