CESM3.0a CISM CASEROOT Variable Definitions

Name of land ice-sheet component

Whether to include the Greenland Ice Sheet in this CISM simulation

    This should generally be set at create_newcase time (via the compset). In principle it
    can be changed later, but great care is needed to change a number of other variables
    to be consistent (GLC_GRID, GLC_DOMAIN_MESH, CISM_EVOLVE_GREENLAND, and possibly
    others).
    

Whether to include the Antarctica Ice Sheet in this CISM simulation

    This should generally be set at create_newcase time (via the compset). In principle it
    can be changed later, but great care is needed to change a number of other variables
    to be consistent (GLC_GRID, GLC_DOMAIN_MESH, CISM_EVOLVE_ANTARCTICA, and possibly
    others).
    

Whether to include the Greenland Ice Sheet in this CISM simulation

    This should generally be set at create_newcase time (via the compset). In principle it
    can be changed later, but great care is needed to change a number of other variables
    to be consistent (GLC_GRID, GLC_DOMAIN_MESH, CISM_EVOLVE_GREENLAND, and possibly
    others).
    

Whether to include the Antarctica Ice Sheet in this CISM simulation

    This should generally be set at create_newcase time (via the compset). In principle it
    can be changed later, but great care is needed to change a number of other variables
    to be consistent (GLC_GRID, GLC_DOMAIN_MESH, CISM_EVOLVE_ANTARCTICA, and possibly
    others).
    

Version of CISM physics/dynamics to use

Whether CISM ice evolution is on or off for Greenland.

Whether CISM ice evolution is on or off for Antarctica.

Whether CISM ice evolution is on or off for CISM as a whole.
     This must be TRUE if CISM_EVOLVE_ICESHEET is TRUE for any ICESHEET,
     and FALSE if CISM_EVOLVE_ICESHEET is FALSE for all ICESHEETs that
     are present in this run.

     Setting CISM_EVOLVE to FALSE in a hybrid case also forces the use
     of observed initial conditions, as if you had also set
     CISM_OBSERVED_IC=TRUE.
     

For hybrid runs, whether CISM should use observed initial
    conditions instead of restart file.

    For hybrid runs, a value of FALSE (default) implies that CISM should
    use the restart file from the reference case; a value of TRUE
    implies that CISM should instead use the observed initial conditions
    that are generally used for startup runs. This variable is ignored
    for startup runs; for branch runs, it must be FALSE.

    Note that setting CISM_EVOLVE to FALSE in a hybrid case also forces
    the use of observed initial conditions, as if you had also set
    CISM_OBSERVED_IC=TRUE.