Snow

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4.3.44. Snow#

Parameters:

water_holding_capacity_max#

Maximum water holding capacity of snow

Unit:

mm

Default:

0.1

water_holding_capacity_min#

Minimum water holding capacity of snow

Unit:

mm

Default:

0.05

narp_emissivity_snow#

Snow surface emissivity used in the NARP net all-wave radiation scheme

Unit:

dimensionless

Example:

0.99

temperature_rain_snow_threshold#

Temperature threshold below which precipitation falls as snow rather than rain

Unit:

degC

Default:

None (optional)

precipitation_threshold_albedo_reset#

Precipitation threshold above which snow albedo resets (cf. aging)

Unit:

mm

Example:

0.1

snow_albedo_max#

Maximum snow albedo

Unit:

dimensionless

Example:

0.85

snow_albedo_min#

Minimum snow albedo

Unit:

dimensionless

Example:

0.4

snow_density_min#

Minimum snow density

Unit:

kg m-3

Default:

None (optional)

snow_density_max#

Maximum snow density

Unit:

kg m-3

Default:

None (optional)

snow_depth_limit_building#

Maximum snow depth limit on buildings

Unit:

m

Example:

0.1

snow_depth_limit_paved#

Maximum snow depth limit on paved surfaces

Unit:

m

Example:

0.1

snow_profile_24hr#

24-hour snow profile

The snow_profile_24hr parameter group is defined by the Hourly Profile structure.

tau_cold_snow#

Time constant for snow albedo aging in cold snow

Unit:

dimensionless

Default:

0.018

tau_melting_snow#

Time constant for snow albedo aging in melting snow

Unit:

dimensionless

Default:

0.11

tau_refreezing_snow#

Time constant for snow albedo aging in refreezing snow

Unit:

dimensionless

Example:

0.05

temperature_melt_factor#

Hourly temperature melt factor of snow

Unit:

mm K-1 h-1

Default:

0.12

radiation_melt_factor#

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.