Foliage crown factor (Heat Overlay): Difference between revisions
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{{Overlay | {{construction attributes | ||
|attribute=FOLIAGE_CROWN_FACTOR | | <onlyinclude> | ||
|unit=ratio | {{construction attributes|type=row|group=Heat Overlay | ||
|functionvalue=Foliage crown factor | |attribute=FOLIAGE_CROWN_FACTOR | ||
|description=The ratio between the height of tree trunks and the radius of the foliage of the tree. | |unit=ratio | ||
}} | |functionvalue=Foliage crown factor | ||
|description=The ratio between the height of tree trunks and the radius of the foliage of the tree. | |||
|icon= | |||
}} </onlyinclude>}} | |||
The foliage crown factor is used to calculate the extend of foliage, which can influence the calculation of the sky view and the shade. The height of the construction multiplied by the the crown factor yields the radius of the foliage. | The foliage crown factor is used to calculate the extend of foliage, which can influence the calculation of the sky view and the shade. The height of the construction multiplied by the the crown factor yields the radius of the foliage. | ||
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The crown factor is used because the extend of foliage itself is not consistently available as geographical data in [[geo-services for land]] use. Instead, only the extent of tree trunks may be recorded. | The crown factor is used because the extend of foliage itself is not consistently available as geographical data in [[geo-services for land]] use. Instead, only the extent of tree trunks may be recorded. | ||
{{article end | |||
|notes= | |||
* Foliage can be calculated based on the FOLIAGE_CROWN_FACTOR. This calculation can be superseded when the [[Heat Overlay]] (set to use the [[DPRA Heat Module]]) is configured to use either [[Area]]s or a [[GeoTiff]] to determine foliage height. In those cases the FOLIAGE_CROWN_FACTOR of [[Construction]]s is unused. | * Foliage can be calculated based on the FOLIAGE_CROWN_FACTOR. This calculation can be superseded when the [[Heat Overlay]] (set to use the [[DPRA Heat Module]]) is configured to use either [[Area]]s or a [[GeoTiff]] to determine foliage height. In those cases the FOLIAGE_CROWN_FACTOR of [[Construction]]s is unused. | ||
|seealso= | |||
* [[Foliage height calculation model (Heat Overlay)]] | |||
|howtos= | |||
* [[How to adjust the foliage height and crown factor]] | |||
}} | |||
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{{ | {{Heat Module buttons}} | ||
Revision as of 14:28, 2 October 2020
Template:Construction attributes
The foliage crown factor is used to calculate the extend of foliage, which can influence the calculation of the sky view and the shade. The height of the construction multiplied by the the crown factor yields the radius of the foliage.
The crown factor is used because the extend of foliage itself is not consistently available as geographical data in geo-services for land use. Instead, only the extent of tree trunks may be recorded.
Notes
- Foliage can be calculated based on the FOLIAGE_CROWN_FACTOR. This calculation can be superseded when the Heat Overlay (set to use the DPRA Heat Module) is configured to use either Areas or a GeoTiff to determine foliage height. In those cases the FOLIAGE_CROWN_FACTOR of Constructions is unused.
How-to's
See also
- Group
- 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
- Building attributes
- Building elevation • Foliage height • Terrain elevation
- Related
