Terrain elevation prequel (Water Overlay): Difference between revisions

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{{Overlay prequels|overlay=Water|suppresscategory=true|
{{Overlay prequels|overlay=Water|
<onlyinclude>{{Overlay prequels|type=row|overlay=Water
<onlyinclude>{{Overlay prequels|type=row|overlay=Water
|prequel=TERRAIN_ELEVATION
|prequel=TERRAIN_ELEVATION
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|min=-10000
|min=-10000
|max=10000
|max=10000
|unit=m {{datum}}
}}</onlyinclude>}}
}}</onlyinclude>}}
This prequel serves as a replacement for the DTM, which is the elevation model without the [[Building]]s. The [[Water Overlay]] will still add the heights of any [[Building]]s present, in accordance with the set [[design flood elevation m (Water Overlay)|DESIGN_FLOOD_ELEVATION M]].


{{article end
{{article end
|notes=* The values in this prequel grid are clamped between -10000.0 and 10000.0. No data values are not allowed.
|notes=* '''IMPORTANT''': This prequel Overlay must be set to [[How to set an Overlay to active or inactive|inactive]] in order to function properly!
* The values in this prequel grid are clamped between -10000.0 and 10000.0. No data values are not allowed.
* Any [[Grid Overlay]] used as input for this [[prequel]] should cover the [[project area]] completely, without any {{nodata}} values. If the dataset used does contain {{nodata}} values, it is prudent to use a [[Combo Overlay]] or an [[Average Overlay]] to fill up any {{nodata}} values, and use that [[Grid Overlay]] as input for this [[prequel]] instead.
|seealso=
* [[Elevation model (Water Overlay)]]
* [[Elevation (Water Overlay)]]
* [[Prequel]]
}}
}}


{{WaterOverlay simulation data nav}}
{{WaterOverlay simulation data nav}}

Latest revision as of 16:48, 5 March 2024

Name Prequel Underlying data Unit Range No data Description
Terrain elevation TERRAIN_ELEVATION Water Prequel m datum -10000 to 10000 Clamped to range Used for initializing the terrain elevation on this datum.


This prequel serves as a replacement for the DTM, which is the elevation model without the Buildings. The Water Overlay will still add the heights of any Buildings present, in accordance with the set DESIGN_FLOOD_ELEVATION M.


Notes

  • IMPORTANT: This prequel Overlay must be set to inactive in order to function properly!
  • The values in this prequel grid are clamped between -10000.0 and 10000.0. No data values are not allowed.
  • Any Grid Overlay used as input for this prequel should cover the project area completely, without any NO_DATA values. If the dataset used does contain NO_DATA values, it is prudent to use a Combo Overlay or an Average Overlay to fill up any NO_DATA values, and use that Grid Overlay as input for this prequel instead.

See also

Water Module
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Introduction button.png
Water Module
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Getting started button.png
Tutorials
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Overview button.png
Overview
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Theory
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Benchmarks
Group
Weather
Rain m • Evaporation m
Prequels
Bottom distance • Bottom pressure • Bottom resistance • Ground conductivity • Groundwater datum • Groundwater depth • Manning • Max infiltration • Microrelief • Surface level • Surface u • Surface v • Terrain elevation • Unsaturated fraction
Elevation
Elevation
Related
Building attributes • Hydrological features • Hydraulic structures •  Terrain attributes • Model attributes • Results
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