Terrain elevation prequel (Heat Overlay)

Name	Prequel	Underlying data	Unit	Range	No data	Description
Terrain elevation	TERRAIN_ELEVATION	Heat Prequel	m (datum)	-10000 to 10000	Clamped to range	Used for initializing the digital terrain model used for this Heat Overlay.

Notes

• The values in this prequel grid are clamped between the mentioned min and max. No data values are not allowed. An Average Overlay can be used to fill in the NO_DATA values of an other grid overlay.
• The terrain elevation is interpreted as datum heights.

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Heat Module

Heat Module

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Model attributes

Model attributes

Daily average radiation • Daily average wind speed • Daily maximum temperature • Daily minimum temperature • Dates • Exclude buildings • Exclude water • Exclude foliage height m • Foliage areas • Hourly humidity • Hourly radiation • Hourly temperature • Max shadow distance • Sun altitude • Sun azimuth • Sun daily motion • Wind direction • Wind speed

Building attributes

Bowen ratio • Foliage height • Foliage crown factor • Vegetation fraction

Prequels

Building elevation • Foliage height • Terrain elevation

Related

Calculation models and formulas • Feature attributes • Model attributes • Result types