Surface u prequel (Water Overlay)

Name	Prequel	Underlying data	Unit	Range	No data	Description
Surface u	SURFACE_U	Water Prequel	m/s	-10 to 10	Clamped to range	Used for initializing the initial speed of the surface water in the x-direction.

Notes

• When providing this prequel, also provide the Surface v prequel (Water Overlay).
• The values in this prequel grid are clamped between -10 m/s and 10 m/s.
• NO_DATA values are not allowed.

See also

• Surface model (Water Overlay)

API Endpoints

• Api session event editor overlay set prequel

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Water Module

Water Module

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Overview

Theory

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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