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name (hydrology.wet)

Name of the wetland hydrology record

The name of the wetland hydrology record is a primary key referenced by in . All names in the hydrology.wet file must be unique.

hyd
wetland.wet

vol_area_co

Volume surface area coefficient for HRU impoundment

hru_frac

Fraction of HRU that drains into wetland

init

Pointer to the reservoir and wetland initialization file

The pointer to the reservoir and wetland initialization file is a foreign key referencing in .

name
initial.res

Wetlands

Wetlands are HRUs in which ponding of water on the surface is allowed. There are two files that are specific to wetlands:

  • Main wetland file: wetland.wet

  • Wetland hydrology: hydrology.wet

For defining the remaining wetland properties, the following reservoir files are used:

  • Wetland initialization:

  • Wetland sediment:

  • Wetland nutrients:

Wetland release:
initial.res
sediment.res
nutrients.res
res_rel.dtl

id (wetland.wet)

ID of the wetland

The ID of the wetland is not used by the model.

hyd

Pointer to the wetland hydrology file

The pointer to the wetland hydrology file is a foreign key referencing in .

name
hydrology.wet

name (wetland.wet)

Name of the wetland

The name of the wetland is a primary key referenced by in . All names in the wetland.wet file must be unique.

surf_stor
hru-data.hru

rel

Pointer to the reservoir and wetland release decision table file

The pointer to the wetland release file is a foreign key referencing name in .

res_rel.dtl

wetland.wet

This file contains pointers referencing several files that specify the wetland properties.

Field
Description
Type

ID of the wetland

integer

Name of the wetland

string

Pointer to the reservoir and wetland initialization file

string

Pointer to the wetland hydrology file

string

Pointer to the reservoir and wetland release decision table file

string

Pointer to the reservoir and wetland sediment file

string

Pointer to the reservoir and wetland nutrient file

string

id
name
init​
hyd​
rel
sed
nut

hydrology.wet

This file contains the wetland hydrology parameters.

Field
Description
Type
Unit
Default
Range

Name of the wetland hydrology record

string

n/a

n/a

n/a

Fraction of HRU area at principal spillway (when surface inlet riser flow starts)

real

frac

0

Average depth of water at principal spillway

real

mm

0

Fraction of HRU area at emergency spillway (when starts to spill into ditch)

real

frac

0

Average depth of water at emergency spillway

real

mm

0

Hydraulic conductivity of the wetland bottom

real

mm/hr

0.01

Wetland evaporation coefficient

real

n/a

0.70

Volume surface area coefficient for HRU impoundment

real

n/a

1.0

Volume depth coefficient for HRU impoundment

real

n/a

1.0

Volume depth coefficient for HRU impoundment

real

n/a

1.0

Fraction of HRU that drains into wetland

real

fraction

0.5

name
hru_ps
dp_ps
hru_es
dp_es
k
evap
vol_area_co
vol_dp_a
vol_dp_b
hru_frac

hru_ps

Fraction of HRU area at principal spillway

dp_ps

Average depth of water at principal spillway

hru_es

Fraction of HRU area at emergency spillway

nut

Pointer to the reservoir and wetland nutrient file

The pointer to the reservoir and wetland nutrient file is a foreign key referencing in .

sed

Pointer to the reservoir and wetland sediment file

The pointer to the reservoir and wetland sediment file is a foreign key referencing in .

name
nutrients.res
name
sediment.res

dp_es

Average depth of water at emergency spillway

vol_dp_a

Volume depth coefficient for HRU impoundment

k

Hydraulic conductivity of the wetland bottom

If seepage occurs in the wetland, the hydraulic conductivity must be set to a value other than 0.

vol_dp_b

Volume depth coefficient for HRU impoundment

evap

Wetland evaporation coefficient

This coefficient is a linear multiplier for PET that can be used to de- or increase wetland evaporation.