6.5.2. Namelist NAM_ISBAn
Fortran name | Fortran type | values | default value |
CC1DRY | string of 4 characters | 'DEF ', 'GB93' | 'DEF ' |
CSCOND | string of 4 characters | 'NP89', 'PL98' | 'PL98' |
CSOILFRZ | string of 3 characters | 'DEF', 'LWT' | 'DEF' |
CDIFSFCOND | string of 4 characters | 'DEF ', 'MLCH' | 'DEF ' |
CSNOWRES | string of 3 characters | 'DEF', 'RIL' | 'DEF' |
CCPSURF | string of 3 characters | 'DRY ', 'HUM' | 'DRY ' |
LCANOPY_DRAG | logical | .FALSE. | |
LGLACIER | logical | .FALSE. | |
XTSTEP | real | none | |
XCGMAX | real | 2.E-5 | |
XCDRAG | real | 0.15 | |
LVEGUPD | logical | T | |
LPERTSURF | logical | T |
- CC1DRY: type of C1 formulation for dry soils. The following options are currently available:
- "DEF " : Giard-Bazile formulation
- "GB93" : Giordani 1993, Braud 1993
- CSCOND: type of thermal conductivity. The following options are currently available:
- "NP89" : Noilhan and Planton (1989) formula
- "PL98" : Peters-Lidard et al. (1998) formula
- CSOILFRZ: type of soil freezing-physics option. The following options are currently available:
- "DEF" : Boone et al. 2000; Giard and Bazile 2000
- "LWT" : Phase changes as above, but relation between unfrozen water and temperature considered
- CDIFSFCOND: type of Mulch effects. The following options are currently available:
- "DEF " : no mulch effect
- "MLCH" : include the insulating effect of leaf litter/mulch on the surf. thermal cond.
- CSNOWRES: type of turbulent exchanges over snow. The following options are currently available:
- "DEF" : Louis
- "RIL" : Maximum Richardson number limit for stable conditions ISBA-SNOW3L turbulent exchange option
- CCPSURF: type of specific heat at surface. The following options are currently available:
- "DRY" : specific heat does not depend on humidity at surface
- "HUM" : specific heat depends on humidity at surface.
- LCANOPY_DRAG: drag activated in SBL scheme within the canopy
- LGLACIER: If activated, specific treatment (as in Arpege) over permanent snow/ice regions. Snow depth initialised to 10m and soil ice to porosity. During the run, snow albedo ranges from 0.8 to 0.85
- XTSTEP: time step for ISBA. Default is to use the time-step given by the atmospheric coupling (seconds).
- XCGMAX: maximum value for soil heat capacity.
- XCDRAG: drag coefficient in canopy.
- LVEGUPD: True = update vegetation parameters every decade
- LPERTSURF: if .True. modification of surface fluxes for ensemble forecasting