Bowen ratio (Heat Overlay): Difference between revisions

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{{Overlay attribute
{{Building attributes
|attribute=BOWEN_RATIO
| <onlyinclude>
|unit=ratio
{{Building attributes|type=row|group=Heat Overlay
|description=The rate of heat transfer for a surface that has moisture as a factor.
|attribute=BOWEN_RATIO
}}
|unit=ratio
|functionvalue=Bowen ratio
|description=Describes the rate of heat transfer for a surface that has moisture as a factor.
|icon=
}} </onlyinclude>}}


The Bowen ratio is a property of a surface, specifically the ratio between two types of heat transfer (sensible heat and latent heat). The wetter the surface, the lower the ratio.<ref name="bowen" />
The Bowen ratio{{ref|bowen}} is a property of a surface, specifically the ratio between two types of heat transfer (sensible heat and latent heat). The wetter the surface, the lower the ratio.


==Notes==
{{article end
* {{Heat DPRA Report}} uses only two possible values for the Bowen ratio: 0.4 and 3.0.
|notes=
* Terrains such as grassland and [[Function|functions]] such as trees and vegetation generally have a ratio of 0.4.
* The {{Heat DPRA Report}} uses only two possible values for the Bowen ratio: 0.4 and 3.0.
* Water is special in the sense that during the day the ratio is 0.4 and at night the ratio is 3.0.
* By default, [[Function]]s such as trees and vegetation generally have a ratio of 0.4. Other functions have a ratio of 3.0.
* The other functions and terrains have a Bowen ratio of 3.0
* The value must be in the range of 0.001 to 10.
 
|seealso=
==See also==
* [[Terrain bowen ratio (Heat Overlay)]]
* [[Bowen_ratio_result_type_(Heat_Overlay)|Bowen ratio overlay result]]
* [[Bowen ratio result type (Heat Overlay)]]
* [[PET_formulas_(Heat_Overlay)|PET formulas]]
* [[PET formulas (Heat Overlay)]]
 
|howtos=
==References==
|references=
<references>
<references>
<ref name="bowen">Wikipedia. Bowen Ratio. https://en.wikipedia.org/wiki/Bowen_ratio. Last visited: 16-12-2019</ref>
{{ref|bowen
  |name=Bowen Ratio
  |author=
  |page=
  |source=Wikipedia
  |link=https://en.wikipedia.org/wiki/Bowen_ratio
  |lastvisit=2019-12-16
}}
</references>
</references>
{{Template:HeatOverlay_model_attribute_nav}}
}}


{{Template:Heat_Module_buttons}}
{{HeatOverlay model attribute nav}}

Latest revision as of 10:08, 17 October 2025

Icon Attribute Unit Range Description
BOWEN_RATIO ratio Describes the rate of heat transfer for a surface that has moisture as a factor.

The Bowen ratio[1] is a property of a surface, specifically the ratio between two types of heat transfer (sensible heat and latent heat). The wetter the surface, the lower the ratio.

Notes

  • The DPRA Heat stress report uses only two possible values for the Bowen ratio: 0.4 and 3.0.
  • By default, Functions such as trees and vegetation generally have a ratio of 0.4. Other functions have a ratio of 3.0.
  • The value must be in the range of 0.001 to 10.

See also

References

  1. ↑ Bowen Ratio ∙ Wikipedia ∙ Found at: https://en.wikipedia.org/wiki/Bowen_ratio ∙ (last visited: 2019-12-16)
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