Inundation area (Water Overlay) and Water area (Water Overlay): Difference between pages

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An inundation area is an initial placement of a quantity of water. This differs from the [[Water level area (Water Overlay)|water level area]]s in that an inundation level allows you to place water anywhere on the surface (but explicitly not on [[terrain water (Water Overlay)|water]]).
A Water level area is a means to specify the initial water level for large sections of your project area. This initial water level is only applied to [[terrain water (Water Overlay)|water terrain]]s. The datum height of the water level is assumed to be equal within the water level area.
 
If no water level areas are present, no water is initialized in the water terrains. Waterways and other water bodies will be dry at the start of the simulation (unless an [[Inundation area (Water Overlay)|inundation area]] is present, which performs a similar function).
 
If the [[Underground model (Water Overlay)|underground model]] is active, and no [[Groundwater GeoTiff (Water Overlay)|groundwater GeoTiff]] is present, the underground watertable is initialized at the height defined by the water level area.
{{Overlay attribute
{{Overlay attribute
|attribute=[[Inundation_level_(Water_Overlay)|INUNDATION_LEVEL]]
|attribute=[[Water_level_(Water_Overlay)|WATER_LEVEL]]
|unit={{mdatum}}
|unit={{mdatum}}
|description=The height of the water on non-water surface terrains.
|description=The water level for all water terrains in this water level area
|defaultvalue=n/a
|defaultvalue=n/a
|icon=[[File:waterwizard_icon_inundation_level.png]]
|icon=[[File:waterwizard_icon_water_level.png]]
}}
}}
==Notes==
* If a grid cell is not covered by an inundation area or it is marked as [[terrain water (Water Overlay)|water]], the grid cell will not be inundated.
* For terrain with a steep decline, using a single inundation area to define the inundation level might not suffice, since the level is a datum height, not a relative offset from the bottom. Alternatives, such as staggered inundation areas, or initializing the waterway dry, should be considered.
==See also==
==See also==
* [[Water level area (Water Overlay)|Water level area]]
* [[Inundation area (Water Overlay)|Inundation area]]
* [[Surface model (Water Overlay)|Surface model]]
* [[Surface model (Water Overlay)|Surface model]]
* [[Surface water level formula (Water Overlay)|Surface water level formula]]
* [[Surface water level formula (Water Overlay)|Surface water level formula]]
==Notes==
* A water level area represents real-world water level areas.
* Grid cells are marked as water by an overlapping [[terrain water (Water Overlay)|water terrain]]. If a grid cell is marked as water, but is not covered by a water level area, the grid cell will not be initialized with water from water level areas.
* For waterways with a steep decline, using a single water level area to define the water level might not suffice, since the level is a datum height, not a relative offset from the bottom. Alternatives, such as staggered water level areas, [[Inundation area (Water Overlay)|inundation area]]s, or initializing the waterway dry, should be considered.
{{WaterOverlay hydrological features nav}}
{{WaterOverlay hydrological features nav}}
{{Water Module buttons}}

Revision as of 14:12, 19 June 2019

A Water level area is a means to specify the initial water level for large sections of your project area. This initial water level is only applied to water terrains. The datum height of the water level is assumed to be equal within the water level area.

If no water level areas are present, no water is initialized in the water terrains. Waterways and other water bodies will be dry at the start of the simulation (unless an inundation area is present, which performs a similar function).

If the underground model is active, and no groundwater GeoTiff is present, the underground watertable is initialized at the height defined by the water level area. Template:Overlay attribute

See also

Notes

  • A water level area represents real-world water level areas.
  • Grid cells are marked as water by an overlapping water terrain. If a grid cell is marked as water, but is not covered by a water level area, the grid cell will not be initialized with water from water level areas.
  • For waterways with a steep decline, using a single water level area to define the water level might not suffice, since the level is a datum height, not a relative offset from the bottom. Alternatives, such as staggered water level areas, inundation areas, or initializing the waterway dry, should be considered.
Water Module
Benchmarks button.png
Introduction button.png
Water Module
Benchmarks button.png
Getting started button.png
Tutorials
Benchmarks button.png
Overview button.png
Overview
Benchmarks button.png
Theory button.png
Theory
Benchmarks button.png
Benchmarks button.png
Benchmarks
Group
Water area
Water level • Water relative
Sewer area
Sewer storage • Sewer pump speed
Inundation area
Inundation level
Aquifer
Aquifer kd • Aquifer datum
Breach
Breach height • Breach width • Breach angle • Breach coefficient • Breach speed • Breach input area • Breach level area • External surface level • External water level • External area
Rain area
Rain m
Limitation area
Limit area
Output
Object flow output • Object height output • Object datum output a • Object datum output b • Object width output
Related
Building attributes • Hydraulic structures •  Terrain attributes • Model attributes • Results • Simulation data


Benchmarks button.png
Introduction button.png
Water Module
Benchmarks button.png
Getting started button.png
Tutorials
Benchmarks button.png
Overview button.png
Overview
Benchmarks button.png
Theory button.png
Theory
Benchmarks button.png
Benchmarks button.png
Benchmarks
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