Terrain elevation prequel (Water Overlay)
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| 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
- Group
- Weather
- 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