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A breach is a modification to the [[terrain height (Water Overlay)|terrain height]], with an optional in- or outflow of water for the hydrological model. This can be used to represent calamitous situations, such as a breach in a levee. Breaches can also be used to easily simulate a terrain height increase, like a levee.


A breach can either be defined solely as a terrain height modification using its [[Breach_height_(Water_Overlay)|BREACH_HEIGHT]] attribute, or as a connection to a water body outside of the hydrological model by adding attributes related to the external water body. If the breach is only defined as a terrain height change, only water that is already created or defined in some other way in the hydrological model can flow through and from it.


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If the breach is given the attributes required for the external water body, water will automatically be created or removed uniformly on the breach, depending on the simulated water body "behind" the breach.


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The breach can grow over time, based on its initial width and the critical speed at which water may flow. If a [[Breach_width_(Water_Overlay)|BREACH_WIDTH]] is defined, the breach's polygon is intersected with a circle emanating from the centerpoint of the polygon. It is only in that intersection, dubbed the "active breach", that water will flow in from the simulated external water body. The radius of the circle defining the intersection will expand as water flows, based on the critical speed of the water as defined in the [[Breach_speed_(Water_Overlay)|BREACH_SPEED]] attribute. All cells in the active breach are considered directly adjacent to the external water body.
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The [[terrain height (Water Overlay)|terrain]] covered by the entire breach area is considered lowered to the height defined by its [[Breach_height_(Water_Overlay)|BREACH_HEIGHT]] attribute, even if the active breach does not extend across the entirety of the breach area.
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|- class="header"


Water flowing through or across a breach will flow in the direction defined by the [[Breach_angle_(Water_Overlay)|BREACH_ANGLE]] attribute, regardless of whether the water flowed onto the breach from elsewhere in the water model, or from the simulated external water body. If no [[Breach_angle_(Water_Overlay)|BREACH_ANGLE]] is defined, water can flow in any direction.


! colspan="4" | Welcome to the Tygron Support {{ucfirst: {{WikiPlatformVersion}}}} Wiki.
If no critical speed is defined, the active breach will never grow. If no width is defined, the width is assumed to be very large, creating an intersection exactly the size of the polygon.
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On the Tygron Support Wiki you will find documentation related to the {{software}}, including tutorials, technical requirements, the roadmap for the {{software}} and the latest release notes.
This page provides a start to the most used features in the {{software}}. If you can't find what you are looking for, please use the search bar in the upper right corner to search for other articles. If you notice anything is missing or outdated or you want to contact us, please see our email on the Support page in the Links section.


 
{{Overlay attribute
|-  class="header"
|attribute=[[Breach height (Water Overlay)|BREACH_HEIGHT]]
 
|unit={{mdatum}}
 
|description=The new [[terrain height (Water Overlay)|terrain height]] at the location of the breach.  
! width="25%" | News >>
|defaultvalue=n/a
! width="25%" | Links >>
|icon=[[File:waterwizard_icon_breach_height.png]]
! width="25%" | Getting started >>
|attribute2=[[Breach width (Water Overlay)|BREACH_WIDTH]]
! width="25%" | 3D-world interaction >>
|unit2=m
|-
|description2=The initial width of the breach.
| class="content separator" |
|defaultvalue2=10000
 
|icon2=[[File:waterwizard_icon_breach_width.png]]
===== =====<!--SECTION-->
|attribute3=[[Breach angle (Water Overlay)|BREACH_ANGLE]]
'''March 29th, 2019'''<br >
|unit3={{geoangle}}
'''Update''' on Preview to [[Version_2019.6.1|Version 2019.6.1]]  
|description3=The angle at which water flows out through the breach.
 
|defaultvalue3=n/a
*[[Release_Notes|Older release notes]]<br>
|icon3=[[File:waterwizard_icon_breach_angle.png]]
*[[Roadmap]]<br>
|attribute4=[[Breach speed (Water Overlay)|BREACH_SPEED]]
*[[Ground_Truth_2.0|Ground Truth 2.0 project]]<br>
|unit4=m/s
<!--DONT EDIT BELOW THIS LINE-->
|description4=The critical speed factor used in the [[Breach growth formula (Water Overlay)|breach width growth formula]].
| class="content separator" |
|defaultvalue4=n/a
 
|icon4=[[File:waterwizard_icon_breach_speed.png]]
===== =====<!--SECTION-->
|attribute5=[[External surface level (Water Overlay)|EXTERNAL_SURFACE_LEVEL]]
*[//www.tygron.com Tygron Website]<br>
|unit5={{mdatum}}
*[[Support]]<br>
|description5=The height of the bottom of the external water body behind the breach. The lowest level the external water level can lower to.
*[http://www.tygron.com/nl/video-tutorials/ Video Tutorials]<br>
|defaultvalue5=0
*[http://community.tygron.com/forum/ Forum]<br>
|icon5=[[File:waterwizard_icon_external_surface_level.png]]
<!--*[[Alliander:Main_Page|Alliander Edition Wiki]<br>-->
|attribute6=[[External water level (Water Overlay)|EXTERNAL_WATER_LEVEL]]
<!--DONT EDIT BELOW THIS LINE-->
|unit6={{mdatum}}
| class="content separator" |
|description6=The water level of the external water body behind the breach. The initial level the water level is set to.
 
|defaultvalue6=0
===== =====<!--SECTION-->
|icon6=[[File:waterwizard_icon_external_water_level.png]]
*[[Requirements|Hardware requirements]]<br>
|attribute7=[[External area (Water Overlay)|EXTERNAL_AREA]]
*[[Install|Installation]]<br>
|unit7=m²
*[[Log_in|Logging in]]<br>
|description7=The surface area of the external water body behind the breach. The larger the external water body, the more water can flow from it (or into it), and the smaller the effect of the inflow or outflow of water on the external water level.
*[[Account_Management|User management]]<br>
|defaultvalue7=0
*[[Wizard|Create a new project]]<br>
|icon7=[[File:waterwizard_icon_external_surface_level.png]]
*[[Training|Training]]<br>
|attribute8=[[Breach input area (Water Overlay)|BREACH_INPUT_AREA]]
*[[Security|Security]]<br>
|unit8=Area ID
<!--DONT EDIT BELOW THIS LINE-->
|description8=The [[area]] representing the influx area for the breach. Water will flow directly from the influx area to the breach itself.
| class="content" |
|defaultvalue8=none
 
|icon8=[[File:waterwizard_icon_breach_input_area.png]]
===== =====<!--SECTION-->
}}
*[[Constructions]]<br>
{{WaterOverlay hydrological features nav}}
*[[Functions]]<br>
{{Water Module buttons}}
*[[Stakeholders]]<br>
*[[Actions]]<br>
*[[Financial_System|Financial system]]<br>
*[[Environment]]<br>
<!--DONT EDIT BELOW THIS LINE-->
 
 
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|- class="header"
 
 
 
 
! Data & Analysis >>
! Impact session >>
! Templates >>
! Tutorials >>
|-
| class="content separator" |
 
===== =====<!--SECTION-->
*[[Geo_Data_Wizard|Import data]]<br>
*[[Calculation_Models|Create a calculation model]]<br>
Default calculation models:  <br>
*[[Water_Overlay|Flooding, Rainfall and Groundwater Overlays]]<br>
*[[Subsidence_(Overlay)|Subsidence]]<br>
*[[Heat_(Overlay)|Heatstress]]<br>
*[[Livability_(Overlay)|Livability]]<br>
*[[Traffic_Noise_(Overlay)|Traffic noise disturbance]] <br>
*[[Traffic_NO2(Overlay)|Traffic air pollution]]<br>
<!--DONT EDIT BELOW THIS LINE-->
| class="content separator" |
 
===== =====<!--SECTION-->
*[[Project_Session|Setting up a multi-stakeholder session]]<br>
*[[Web_Interface|Create a 2D-viewer for sharing]]<br>
<!--DONT EDIT BELOW THIS LINE-->
| class="content separator" |
 
===== =====<!--SECTION-->
*[[Climategame]]<br>
*[[RE:PEAT|RE:PEAT (subsidence)]]<br>
*[[Waterschadeschatter]]<br>
*[[Stresstest]]<br>
<!--DONT EDIT BELOW THIS LINE-->
| class="content" |
 
===== =====<!--SECTION-->
Basic:
*[[Practice|Basic skills tutorial]]<br>
*[[Geo_Data_tutorial|Geo data tutorial]]<br>
*[[Panels_tutorial|Basic panels tutorial]]<br>
*[[Session (multi-user) facilitation tutorial|Multi-user session facilitation tutorial]]<br>
 
<br>
Advanced:
<!--*[[API_tutorial|API tutorial]]<br>-->
*[[Rainfall_Overlay_tutorial|Rainfall Overlay tutorial]]<br>
*[[Panels (template_panels)_tutorial|Template panels tutorial]]<br>
*[[Web_interface_tutorial|Web interface tutorial]]<br>
 
<!--DONT EDIT BELOW THIS LINE-->
 
 
|}
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Revision as of 13:58, 19 June 2019

A breach is a modification to the terrain height, with an optional in- or outflow of water for the hydrological model. This can be used to represent calamitous situations, such as a breach in a levee. Breaches can also be used to easily simulate a terrain height increase, like a levee.

A breach can either be defined solely as a terrain height modification using its BREACH_HEIGHT attribute, or as a connection to a water body outside of the hydrological model by adding attributes related to the external water body. If the breach is only defined as a terrain height change, only water that is already created or defined in some other way in the hydrological model can flow through and from it.

If the breach is given the attributes required for the external water body, water will automatically be created or removed uniformly on the breach, depending on the simulated water body "behind" the breach.

The breach can grow over time, based on its initial width and the critical speed at which water may flow. If a BREACH_WIDTH is defined, the breach's polygon is intersected with a circle emanating from the centerpoint of the polygon. It is only in that intersection, dubbed the "active breach", that water will flow in from the simulated external water body. The radius of the circle defining the intersection will expand as water flows, based on the critical speed of the water as defined in the BREACH_SPEED attribute. All cells in the active breach are considered directly adjacent to the external water body.

The terrain covered by the entire breach area is considered lowered to the height defined by its BREACH_HEIGHT attribute, even if the active breach does not extend across the entirety of the breach area.

Water flowing through or across a breach will flow in the direction defined by the BREACH_ANGLE attribute, regardless of whether the water flowed onto the breach from elsewhere in the water model, or from the simulated external water body. If no BREACH_ANGLE is defined, water can flow in any direction.

If no critical speed is defined, the active breach will never grow. If no width is defined, the width is assumed to be very large, creating an intersection exactly the size of the polygon.

Template:Overlay attribute