Foliage height calculation model (Heat Stress Overlay): Difference between revisions

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* As noted above, the [[Vegetation_fraction_(Heat_Stress_Overlay)|vegetation fraction]] and Bowen ratio are also changed when the foliage height is set to a positive height. This means it is also set when a GeoTIFF or areas are used to set the foliage height.
* As noted above, the [[Vegetation_fraction_(Heat_Stress_Overlay)|vegetation fraction]] and Bowen ratio are also changed when the foliage height is set to a positive height. This means it is also set when a GeoTIFF or areas are used to set the foliage height.
* {{HeatStressOverlay warning foliage wind}} The original [[DPRA Heat stress report]] uses relatively large [[Foliage areas (Heat Overlay)|foliage area]]s as input.
* {{HeatStressOverlay warning foliage wind}} The original [[DPRA Heat stress report]] uses relatively large [[Foliage areas (Heat Overlay)|foliage area]]s as input.
[[File:dpra_foliage_areas.png|thumb|right|[[Foliage areas (Heat Overlay)]] in the [[DPRA Heat stress report]]]]
[[File:dpra_foliage_areas.png|thumb|right|[[Foliage areas (Heat Stress Overlay)]] in the [[DPRA Heat stress report]]]]


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Revision as of 12:33, 13 April 2026

Foliage height calculation model

Notes

  • The decline of the foliage height cannot be changed, it will always be linear.
  • As noted above, the vegetation fraction and Bowen ratio are also changed when the foliage height is set to a positive height. This means it is also set when a GeoTIFF or areas are used to set the foliage height.
  • Warning: The wind factor reduction is very susceptible to variation in foliage heights, leading to significantly higher PET values in forested areas. It is advised that this prequel is smoothed with an average setup with the max method for rasterization. The original DPRA Heat stress report uses relatively large foliage areas as input.
Foliage areas (Heat Stress Overlay) in the DPRA Heat stress report

How-to's

See also