Surface level prequel (Water Overlay)

Name	Prequel	Underlying data	Unit	Range	No data	Description
Surface level	SURFACE_LEVEL	Water Prequel	m	-10000 to 10000	Clamped to range	Used for initializing the surface water level on this datum, both in waterways and on land.

Notes

• The value can be set either as a relative height or datum height with attribute PREQUEL_SURFACE_LEVEL_RELATIVE.
• The values in this prequel grid are clamped between -10000.0 and 10000.0 when datum and 0 - 10000.0 for relative heights.
• No data values are not allowed.

See also

• Prequel surface level relative (Water Overlay)
• Surface model (Water Overlay)

API Endpoints

• Api session event editor overlay set prequel

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Water Module

Water Module

Tutorials

Overview

Theory

Benchmarks

Group

Simulation data

Weather

Rain m • Evaporation m

Prequels

Bottom distance • Bottom pressure • Bottom resistance • Ground conductivity • Groundwater datum • Groundwater depth • Manning • Max infiltration • Microrelief • Sewer level • Surface level • Surface u • Surface v • Terrain elevation • Unsaturated fraction

Elevation

Elevation model

Related

Building attributes • Hydrological features • Hydraulic structures •  Terrain attributes • Model attributes • Prequels • Results