CESM3.0a DLND CASEROOT Variable Definitions
Model Version: 3.0a
Change CESM Version
Component Tag:
cdeps1.0.96
HTML Created:
2026-07-02
Use the CASEROOT tools xmlquery to query these variables and xmlchange to change their values.
| Parameter Name | Default Value | Data Type | Group | CASEROOT File | Valid Values | Description |
|---|---|---|---|---|---|---|
| COMP_LND | dlnd | char | case_comp | env_case.xml | ['dlnd'] | Name of land component |
| DLND_MODE | GCPL | char | run_component_dlnd | env_run.xml | ['SCPL', 'GCPL', 'RCPL'] |
model mode.
In SCPL or GCPL mode glc coupling data produced by lnd from a previous
model run is read in from a coupler history file.
In RCPL mode rof coupling data produced by lnd from a previous
model run is read in from a coupler history file.
|
| DLND_LND2ROF_NONH2O | none | char | run_component_dlnd | env_run.xml | None | colon delimited string of non water tracers to be sent from dlnd to the mediator - only used for DLND%RCPL |
| DLND_CPLHIST_DIR | UNSET | char | run_component_dlnd | env_run.xml | None | directory for coupler history data mode (only used for CPLHIST mode) |
| DLND_CPLHIST_CASE | UNSET | char | run_component_dlnd | env_run.xml | None | case name for coupler history data mode (only used for CPLHIST mode) |
| DLND_CPLHIST_YR_ALIGN | -999 | integer | run_component_dlnd | env_run.xml | None |
Simulation year corresponding to DLND_CPLHIST_YR_START (only used
when DLND_MODE is SCPL or GCPL or RCPL). A common usage is to
set this to RUN_STARTDATE. With this setting, the forcing in the
first year of the run will be the forcing of year
DLND_CPLHIST_YR_START. Another use case is to align the calendar
of transient forcing with the model calendar. For example, setting
DLND_CPLHIST_YR_ALIGN=DLND_CPLHIST_YR_START will lead to the
forcing calendar being the same as the model calendar. The forcing
for a given model year would be the forcing of the same year. This
would be appropriate in transient runs where the model calendar is
setup to span the same year range as the forcing data.
|
| DLND_CPLHIST_YR_START | -999 | integer | run_component_dlnd | env_run.xml | None | starting year to loop data over (only used when DLND_MODE is SCPL or GCPL or RCPL) |
| DLND_CPLHIST_YR_END | -999 | integer | run_component_dlnd | env_run.xml | None | ending year to loop data over (only used when DLND_MODE is SCPL or GCPL or RCPL) |
| DLND_SKIP_RESTART_READ | FALSE | logical | run_component_dlnd | env_run.xml | ['TRUE', 'FALSE'] | If set to true, than dlnd restarts will not be read on a continuation run.
|
| Parameter Name | Default Value | Data Type | Group | CASEROOT File | Valid Values | Description |