Breach measurement distance m (Water Overlay): Difference between revisions

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{{Overlay keys|<onlyinclude>
[[File:Wateroverlay_wizard_breach_measurement_distance_m.png|thumb|right|Breach measurement distance m can be configured in ''Breach Growth'' step of a [[Flooding Overlay]] wizard.]]
{{Overlay keys|type=row|group=Water Overlay
{{Overlay attributes|<onlyinclude>
|key=BREACH_MEASUREMENT_DISTANCE_M
{{Overlay attributes|type=row|overlay=Water  
|attribute=BREACH_MEASUREMENT_DISTANCE_M
|unit=m
|unit=m
|description=Distance from the breach area to the automatically placed measurement point for the downstream water level of the breach, in the direction of the flow.
|description=Distance from the breach area to the automatic downstream water level measurement point, in the direction of the breach.
|defaultvalue=100
|defaultvalue=100
|range=0 to {{max surface}}
|icon=waterwizard_icon_breach_measurement_distance_m.png
|icon=waterwizard_icon_breach_measurement_distance_m.png
}}</onlyinclude>}}
}}</onlyinclude>}}
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{{article end
{{article end
|notes=
|notes=
* This distance is only taken into account when not using a manually defined [[Breach level area (Water Overlay)|Breach level area]].
* In order to place the measurement the breach area must also have a [[Breach_angle_(Water_Overlay)|BREACH_ANGLE]]. Together they determine the location at which the point of measurement is placed.
* In order to place the measurement the breach area must also have a [[Breach_angle_(Water_Overlay)|BREACH_ANGLE]]. Together they determine the location at which the point of measurement is placed.
* The downstream water level of the breach is used in the [[Breach_growth_formula_(Water_Overlay)|Verheij–van der Knaap growth formula]].
* The downstream water level of the breach is used in the [[Breach_growth_formula_(Water_Overlay)|Verheij–van der Knaap growth formula]].
* Only when the area behind the breach is lower then the breach level itself the measurement point can be placed. This prevents invalid measurement points, for example when it is placed on top of a [[building]].
* The measurement point is only placed if the calculated location is lower than the breach level, preventing invalid placement (e.g., on top of a [[building]]).
|seealso=
|seealso=
* [[Breach flow formula (Water Overlay)]]
* [[Breach flow formula (Water Overlay)]]
* [[Breach model (Water Overlay)]]
* [[Weir formula (Water Overlay)]]
* [[Weir formula (Water Overlay)]]
|howtos=
|api=
* [[Api session event editor overlay set attribute]]
}}
}}


{{WaterOverlay model attribute nav}}
{{WaterOverlay model attribute nav}}

Latest revision as of 14:06, 15 July 2026

Breach measurement distance m can be configured in Breach Growth step of a Flooding Overlay wizard.
Icon Attribute Unit Range Description Default value
BREACH_MEASUREMENT_DISTANCE_M m 0 to 10000 Distance from the breach area to the automatic downstream water level measurement point, in the direction of the breach. 100

Notes

  • This distance is only taken into account when not using a manually defined Breach level area.
  • In order to place the measurement the breach area must also have a BREACH_ANGLE. Together they determine the location at which the point of measurement is placed.
  • The downstream water level of the breach is used in the Verheij–van der Knaap growth formula.
  • The measurement point is only placed if the calculated location is lower than the breach level, preventing invalid placement (e.g., on top of a building).

See also

API Endpoints

Water Module
Water Module
Tutorials
Overview
Theory
Benchmarks
Group
Model attributes
Allowed water increase m • Avg shore width m • Avg terrain width m • Avg terrain storage m • Breach measurement distance m • Bridge elevation • Culvert dem threshold m • Design flood elevation m • Ground bottom distance m • Ground bottom pressure m • Ground water • Ground water depth m • Ground watertable with surface • Impact flood threshold m • Impact range m • Increased resolution • Infiltration factor s
Limit area • Limit rain • Max infiltration m • Max water bottom m • Microrelief storage fraction • Min max elevation • Object entry correction • Prequel surface level relative • Rise rate distance m • Sewer overflow threshold • Shoreline • Duration min level m • Stabilizer angle • Start date ms • Surface water • Surface water evaporation factor • Timeframe times • Timeframes • Trim manning • Trim evapotranspiration • Trim root depth • Trim ground infiltration • Trim ground conductivity • Trim shoreline conductivity
Related
Building attributes • Hydrological features • Hydraulic structures •  Terrain attributes • Prequels • Results • Simulation data
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