NAM_BLOWSNOW

NAM_BLOWSNOW content

Fortran name	Fortran type	Default value
LBLOWSNOW	LOGICAL	.FALSE.
NBLOWSNOW3D	INTEGER	2
NBLOWSNOW_2D	INTEGER	3
XALPHA_SNOW	REAL	3
XRSNOW	REAL	4

• LBLOWSNOW : Flag to active pronostic blowing snow

• NBLOWSNOW3D : Number of blowing snow variables as scalar in Meso-NH. The curent version of the model use two scalars: number concentration and mass concentration (kg/kg)

• NBLOWSNOW_2D : Number of 2D blowing snow variables advected in Meso-NH. The curent version of the model advectes three variables: total number concentration in canopy, total mass concentration in canopy and equivalent concentration in the saltation layer

• XALPHA_SNOW : Gamma distribution shape factor

• XRSNOW : Ratio between diffusion coefficient for scalar variables and blowing snow variables

  • XRSNOW = KSCA/KSNOW = 4. (if Redelsperger and Sommeria [1981] used in ini_cturb.f90)

  • XRSNOW = KSCA/KSNOW = 2.5 ( if Cheng et al. [2002] used in ini_cturb.f90)