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Snow_related_parameters.rst

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Snow related parameters

SnowInitially

Requirement

Optional

Description

Flag for initial snow status [0 or 1]

Configuration

If the model run starts when there is no snow on the ground, set SnowInitially = 0 and the snow-related parameters will be set accordingly. If the model run starts when there is snow on the ground, the following snow-related parameters must be set appropriately. The value of SnowInitially overrides any values provided for the individual snow-related parameters. To prevent SnowInitially from setting the initial conditions, either omit it from the namelist or set to -999. If values are provided individually, they should be consistent the information provided in SUEWS_Snow.txt .

SnowWaterPavedState

Requirement

Optional

Description

Initial amount of liquid water in the snow on paved surfaces Paved

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowWaterBldgsState

Requirement

Optional

Description

Initial amount of liquid water in the snow on buildings Bldgs

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowWaterEveTrState

Requirement

Optional

Description

Initial amount of liquid water in the snow on evergreen trees EveTr

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowWaterDecTrState

Requirement

Optional

Description

Initial amount of liquid water in the snow on deciduous trees DecTr

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowWaterGrassState

Requirement

Optional

Description

Initial amount of liquid water in the snow on grass surfaces Grass

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowWaterBSoilState

Requirement

Optional

Description

Initial amount of liquid water in the snow on bare soil surfaces BSoil

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowWaterWaterState

Requirement

Optional

Description

Initial amount of liquid water in the snow in water Water

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowPackPaved

Requirement

Optional

Description

Initial snow water equivalent if the snow on paved surfaces Paved

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowPackBldgs

Requirement

Optional

Description

Initial snow water equivalent if the snow on buildings Bldgs

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowPackEveTr

Requirement

Optional

Description

Initial snow water equivalent if the snow on evergreen trees EveTr

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowPackDecTr

Requirement

Optional

Description

Initial snow water equivalent if the snow on deciduous trees DecTr

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowPackGrass

Requirement

Optional

Description

Initial snow water equivalent if the snow on grass surfaces Grass

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowPackBSoil

Requirement

Optional

Description

Initial snow water equivalent if the snow on bare soil surfaces BSoil

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowPackWater

Requirement

Optional

Description

Initial snow water equivalent if the snow on water Water

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowFracPaved

Requirement

Optional

Description

Initial plan area fraction of snow on paved surfaces Paved

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowFracBldgs

Requirement

Optional

Description

Initial plan area fraction of snow on buildings Bldgs

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowFracEveTr

Requirement

Optional

Description

Initial plan area fraction of snow on evergreen trees EveTr

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowFracDecTr

Requirement

Optional

Description

Initial plan area fraction of snow on deciduous trees DecTr

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowFracGrass

Requirement

Optional

Description

Initial plan area fraction of snow on grass surfaces Grass

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowFracBSoil

Requirement

Optional

Description

Initial plan area fraction of snow on bare soil surfaces BSoil

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowFracWater

Requirement

Optional

Description

Initial plan area fraction of snow on water Water

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowDensPaved

Requirement

Optional

Description

Initial snow density on paved surfaces Paved

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowDensBldgs

Requirement

Optional

Description

Initial snow density on buildings Bldgs

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowDensEveTr

Requirement

Optional

Description

Initial snow density on evergreen trees EveTr

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowDensDecTr

Requirement

Optional

Description

Initial snow density on deciduous trees DecTr

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowDensGrass

Requirement

Optional

Description

Initial snow density on grass surfaces Grass

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowDensBSoil

Requirement

Optional

Description

Initial snow density on bare soil surfaces BSoil

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowDensWater

Requirement

Optional

Description

Initial snow density on Water

Configuration

The recommended values can be found from SUEWS_Snow.txt

SnowAlb0

Requirement

Optional

Description

Initial snow albedo

Configuration

The recommended values can be found from SUEWS_Snow.txt