Terrain elevation prequel (Water Overlay): Difference between revisions

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This prequel serves as a replacement for the DTM, which is the elevation model without the [[Construction]]s. The [[Water Overlay]] will still add the heights of any [[Construction]]s present, in accordance with the set [[design flood elevation m (Water Overlay)|DESIGN_FLOOD_ELEVATION M]].
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]].


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Revision as of 14:36, 6 October 2022

Name Prequel Underlying data Unit Range No data Description
Terrain elevation TERRAIN_ELEVATION Water Prequel -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

  • 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 3D world 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
Benchmarks button.png
Introduction button.png
Water Module
Benchmarks button.png
Getting started button.png
Tutorials
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Overview button.png
Overview
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Theory button.png
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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