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4.3.37. SPARTACUS

SPARTACUS radiation model parameters.

Controls the SPARTACUS-Surface radiation scheme for detailed 3D radiation interactions in urban environments.

Parameters:

air_ext_lw

Air extinction coefficient for longwave radiation

Unit:

m^-1

Example:

0.0

air_ext_sw

Air extinction coefficient for shortwave radiation

Unit:

m^-1

Example:

0.0

air_ssa_lw

Air single scattering albedo for longwave radiation

Unit:

dimensionless

Example:

0.5

air_ssa_sw

Air single scattering albedo for shortwave radiation

Unit:

dimensionless

Example:

0.5

ground_albedo_dir_mult_fact

Multiplication factor for direct ground albedo

Unit:

dimensionless

Example:

1.0

n_stream_lw_urban

Number of streams for longwave radiation in urban areas

Unit:

dimensionless

Example:

2

n_stream_sw_urban

Number of streams for shortwave radiation in urban areas

Unit:

dimensionless

Example:

2

n_vegetation_region_urban

Number of vegetation regions in urban areas

Unit:

dimensionless

Example:

1

sw_dn_direct_frac

Fraction of downward shortwave radiation that is direct

Unit:

dimensionless

Example:

0.5

use_sw_direct_albedo

Flag to use direct albedo for shortwave radiation

Unit:

dimensionless

Example:

1.0

veg_contact_fraction_const

Constant vegetation contact fraction

Unit:

dimensionless

Example:

0.5

veg_fsd_const

Constant vegetation fractional standard deviation

Unit:

dimensionless

Example:

0.5

veg_ssa_lw

Vegetation single scattering albedo for longwave radiation

Unit:

dimensionless

Example:

0.5

veg_ssa_sw

Vegetation single scattering albedo for shortwave radiation

Unit:

dimensionless

Example:

0.5

ref

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