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4.3.41. Snow

Parameters:

crwmax

Maximum water holding capacity of snow

Unit:

mm

Default:

0.1

crwmin

Minimum water holding capacity of snow

Unit:

mm

Default:

0.05

narp_emis_snow

Snow surface emissivity

Unit:

dimensionless

Default:

0.99

preciplimit

Temperature threshold for snow vs rain precipitation

Unit:

degC

Default:

None (optional)

preciplimitalb

Precipitation threshold for snow albedo aging

Unit:

mm

Default:

0.1

snowalbmax

Maximum snow albedo

Unit:

dimensionless

Default:

0.85

snowalbmin

Minimum snow albedo

Unit:

dimensionless

Default:

0.4

snowdensmin

Minimum snow density

Unit:

kg m^-3

Default:

None (optional)

snowdensmax

Maximum snow density

Unit:

kg m^-3

Default:

None (optional)

snowlimbldg

Maximum snow depth limit on buildings

Unit:

m

Default:

0.1

snowlimpaved

Maximum snow depth limit on paved surfaces

Unit:

m

Default:

0.1

snowprof_24hr

24-hour snow profile

The snowprof_24hr parameter group is defined by the Hourly Profile structure.

tau_a

Time constant for snow albedo aging in cold snow

Unit:

dimensionless

Default:

0.018

tau_f

Time constant for snow albedo aging in melting snow

Unit:

dimensionless

Default:

0.11

tau_r

Time constant for snow albedo aging in refreezing snow

Unit:

dimensionless

Default:

0.05

tempmeltfact

Hourly temperature melt factor of snow

Unit:

mm K^-1 h^-1

Default:

0.12

radmeltfact

Hourly radiation melt factor of snow

Unit:

mm W^-1 m² h^-1

Default:

0.0016

ref

The ref parameter group is defined by the Reference Info structure.