ICatchmentKinematicWaveData Properties

Additional constant flow added to the total runoff Unit: [m3/s] Default: 0

True if the evaporation is applied at the beginning of the time step, correcting the net rain (in wet periods).

If false, evaporation is applied at the end of the time step on non-empty storages in the catchment.

Only valid if EvaporationFromTimeSeries is enabled.

Default true. Historically MIKE 11 has set this to true and MIKE URBAN to false.

Total area of catchment

Geometry of the catchment. This is a list of coordinates defining a closed polygon as the extent of the catchment.

Catchment name

The name is not unique, there may be several catchment models for one catchment, however all catchments with the same name should/must share the same catchment geometry.

The central point of the catchment. Used for e.g. finding the rain time series closest to this catchment.

End time of catchment simulation - the latest time for which the catchment can return data

True if evaporation is enabled, and an evaporation boundary has been defined.

If set to false the initial recover rate is used during dry periods. Default: False

Flag indicating if the length-width ratio should be fixed.

When fixed, the length and width for each sub-catchment are calculated so that the length/width ratio for each sub-area is kept equal to the length/width ratio of the entire catchment.

When not set, the length of each subcatchment equals the length of the entire catchment, and width of each subcatchment is calculated as the area fraction of the width of the entire catchment.

This is only applicable when the catchment does not specify their length explicitly, see Length.

Default: true

Dry depth used for switching Horton's mode between dry and wet in Kinematic Wave model: when InfiltrationAfterRain == true In this case the switching to regeneration of infiltration capacity is controlled by a low limit of the water depth on the surface. (from ini file) Unit: [m] Default: 1e-6

True if infiltration shall occur also after rain Default: True

Recovery rate for initial loss capacity. The initial loss capacity is regenerated in dry periods by a linear recovery rate.

Used as constant evaporation, when evaporation is not defined explicitly. If evaporation is defined explicitly (see EvaporationFromTimeSeries), this is neglected.

For some catchment models it is only applied under dry conditions.

Unit: [m/s] Default: 0.00005 [m/hour]

True if the Integrated Horton method is used in the calculation for infiltration. Default: False

Getter returning data that vary with each surface type.

The length of the channel.

The model assumes a prismatic flow chammel with rectangular cross section. The channel bottom width is computed from catchment area and length.

This is only applicable when the catchment does not specify their length explicitly, see Length.

Unit: [m]

Low flow limit for switching to dry period time step. The dry period time step will only be applied when the runoff from the rainfall is below the limit. Unit: [m3/s] Default: 0.0001

Catchment model ID. Unique id.

Catchment model ID. Unique id.

Observed data. Used for creating calibration plots and for auto-calibration reference data.

Number of person equivalent in the catchment, used with catchment discharge source boundary

Avearage slope of the catchment.

This is only applicable when the catchment does not specify their slope explicitly, see Slope.

Unit: [-]

Snow melt coefficient. Note: the snow melt coefficient is not in SI unit, because the temperature is assumed to be in degres Celcius. Unit: [m/degCelcius/s]

Start time of catchment simulation - the earliest time for which the catchment can return data

StormWater LIDs connected to catchment

Time step used during the simulation by the catchment model

Time step used during dry period Default: 12 hours

Time step used during dry period Unit: [s] Default: 12 hours

Flag telling if initial conditions is taken from a hotstart file Default: false

True if the snow module is activated. If True, a temperature time series has to be provided for the catchment.