Grass Initial State

Tip

  1. Need help? Please let us know in the UMEP Community.

  2. Please report issues with the manual on GitHub Issues (or use Report Issue for This Page for page-specific feedback).

  3. Please cite SUEWS with proper information from our Zenodo page.

4.3.18. Grass Initial State#

Initial state for grass surfaces with vegetation parameters.

Parameters:

state#

Initial water state of the surface

Unit:

mm

Default:

0.0

soilstore#

Initial soil store. Related to Soil Moisture Deficit (SMD) as SMD = soilstorecap - soilstore.

Unit:

mm

Default:

150.0

snowfrac#

Snow fraction

Unit:

dimensionless

Default:

0.0

snowpack#

Snow pack

Unit:

mm

Default:

0.0

icefrac#

Ice fraction

Unit:

dimensionless

Default:

0.0

snowwater#

Snow water

Unit:

mm

Default:

0.0

snowdens#

Snow density

Unit:

kg m-3

Default:

0.0

temperature#

Initial temperature for each thermal layer

Unit:

degC

Default:

[15.0, 15.0, 15.0, 15.0, 15.0]

tsfc#

Initial exterior surface temperature

Unit:

degC

Default:

15.0

tin#

Initial interior surface temperature

Unit:

degC

Default:

20.0

ref#

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

alb_id#

Albedo at the start of the model run.

Unit:

dimensionless

Default:

0.25

lai_id#

Leaf area index at the start of the model run.

Unit:

m2 m-2

Default:

1.0

gdd_id#

Growing degree days at the start of the model run

Unit:

degC d

Default:

0

sdd_id#

Senescence degree days at the start of the model run

Unit:

degC d

Default:

0

wu#

The wu parameter group is defined by the wateruse structure.