Pet result type (Heat Overlay): Difference between revisions

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(Created page with "{| class="wikitable" ! Image ! Result type ! Unit ! Display mode ! Description |- |25px|center |FOLIAGE |fraction |Result_type_(Heat_O...")
 
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{| class="wikitable"
[[File:DPRA Heatstress overlay.PNG|350px|thumb|right|PET (physiological equivalent temperature or heat stress) result type overlay (Wageningen)]]
! Image
{{result types|<onlyinclude>
! Result type
{{result types|type=row|overlay=Heat
! Unit
|name=PET
! Display mode
|icon=Overlay icon heat pet.png
! Description
|unit=°C
|-
|mode=[[Result types (Heat Overlay)#Date Time type|Date-Time]]
|[[File:Overlay_icon_heat_foliage.png|25px|center]]
|description=The calculated physiological equivalent temperature.  
|FOLIAGE
}}</onlyinclude>}}
|fraction
|[[Result_type_(Heat_Overlay)#Date_Time_type|Date-Time]]
|The initial and optional calculated foliage height, depending on the source of the foliage height.  
|}


==Notes==
The physiological equivalent temperature is a value which expresses the effective outdoor temperature of a (complex) outdoor situation as an equivalent (simple) indoor situation. The equivalence is determined as the point where the heat balance of the human body is balanced with the surrounding environment.<ref name="pet" /> In other words, the PET of any given situation outdoors is equal to the temperature indoors at which the human body would gain or lose the same amount of heat.
* Foliage can be supplied in three ways:
 
** As a [[Geotiff|Geotiff]] containing a tree height for each cell;
{{article end
** As [[Area|Areas]] containing a FOLIAGE_HEIGHT attribute representing the tree height for the whole area;
|notes=
** As [[Function|tree functions]] containing a CROWN_FACTOR. An additional calculation is performed to generate the foliage heights. See [[Foliage Height Calculation Model (Heat Overlay)|Foliage Height Calculation Model]].
 
|seealso=
* [[Pet relative result type (Heat Overlay)]]
|references=
<references>
<ref name="pet">Biometeorology education and research network. Physiological equivalent temperature. https://www.biomet-education.net/glossary/physiological-equivalent-temperature/. Last visited: 16-12-2019</ref>
</references>
}}
{{HeatOverlay result type nav}}

Latest revision as of 11:58, 13 September 2021

PET (physiological equivalent temperature or heat stress) result type overlay (Wageningen)
Icon Result type Unit Mode Description
Overlay icon heat pet.png PET °C Date-Time The calculated physiological equivalent temperature.

The physiological equivalent temperature is a value which expresses the effective outdoor temperature of a (complex) outdoor situation as an equivalent (simple) indoor situation. The equivalence is determined as the point where the heat balance of the human body is balanced with the surrounding environment.[1] In other words, the PET of any given situation outdoors is equal to the temperature indoors at which the human body would gain or lose the same amount of heat.

See also

References

  1. ↑ Biometeorology education and research network. Physiological equivalent temperature. https://www.biomet-education.net/glossary/physiological-equivalent-temperature/. Last visited: 16-12-2019
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