Wind decline angle (Heat Stress Overlay)

Icon	Attribute	Unit	Range	Description	Default value
	WIND_DECLINE_ANGLE	Degrees		This angle determines how the wind flows down around objects.	45

Notes

• The DPRA Heat stress report does not take this effect into account and the value should be set to 90 degrees (making it inactive).
• However a value of e.g. 45 degrees produces more realistic wind flow around small objects like individual trees.

API Endpoints

• Api session event editor overlay set attribute

---

Heat Stress Module

Heat Stress Module

Tutorials

Overview

Theory

Benchmarks

Group

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 • Wind decline angle

Group

Feature attributes

Building attributes

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

Terrain attributes

Bowen ratio •  Vegetation fraction

Area attributes

Foliage height

Group

Prequels

Prequels

Building elevation • Foliage height • Terrain elevation

Related

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