Water area (Water Overlay): Difference between revisions

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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.
A Water 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 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 no water 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.
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 area.


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|notes=
|notes=
* A water level area represents real-world water level areas.  
* A water area represents real-world water 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.
* 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 area, the grid cell will not be initialized with water from water 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.
* For waterways with a steep decline, using a single water 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 areas, [[Inundation area (Water Overlay)|inundation area]]s, or initializing the waterway dry, should be considered.
|seealso=
|seealso=
* [[Inundation area (Water Overlay)]]
* [[Inundation area (Water Overlay)]]

Revision as of 07:06, 28 May 2021

A Water 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 area.

If no water 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 area.

Icon Key Unit Range Description Default value
Waterwizard icon water level.png WATER_LEVEL m + datum or m above datum The water level for all water terrains in this water area. n/a

Notes

  • A water area represents real-world water 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 area, the grid cell will not be initialized with water from water areas.
  • For waterways with a steep decline, using a single water 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 areas, inundation areas, or initializing the waterway dry, should be considered.

See also

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
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