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4.3.51. Vertical Layers

Vertical structure of surface layers.

Parameters:

nlayer

Number of vertical layers in the urban canopy

Unit:

dimensionless

Default:

3

height

Heights of layer boundaries, length must be nlayer+1

Unit:

m

Example:

[0.0, 10.0, 20.0, 30.0]

veg_frac

Fraction of vegetation in each layer, length must be nlayer

Unit:

dimensionless

Example:

[0.0, 0.0, 0.0]

veg_scale

Scaling factor for vegetation in each layer, length must be nlayer

Unit:

dimensionless

Default:

[1.0, 1.0, 1.0]

building_frac

Cumulative grid building fraction at each vertical layer (decreasing with height), length must be nlayer

Unit:

Example:

[0.4, 0.3, 0.2]

building_scale

Diameter of buildings at each vertical layer, length must be nlayer

Unit:

m

Default:

[10.0, 10.0, 10.0]

roofs

Properties for roof surfaces in each layer, length must be nlayer

Each item in the roofs list must conform to the Roof Layer structure.

walls

Properties for wall surfaces in each layer, length must be nlayer

Each item in the walls list must conform to the Wall Layer structure.

ref

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