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| Regarding the 3 foliage options (BGT, Area, Geotiff)
| | #REDIRECT [[FAQ Foliage Heat Overlay]] |
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| From option 1 I would like to know how I can adjust functions per tree, and whether it is possible to include the trees in the analysis, and not to filter them from the data just like buildings.
| | This page contains Frequently asked questions related to the [[Heat Overlay]] and [[DPRA Heat Module]]. Some have been grouped onto separate pages. |
| From option 2 I want to know exactly which data is expected, since the point data that I have does not seem to work.
| | * [[FAQ_Foliage_Heat_Overlay|Foliage related questions]]. |
| For option 3, I would also like to know what this data should look like. For example, is this a grid with height values, where there are only trees? So no individual trees need to be identified?
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| We now have a point data set in which each tree is known as a loose point, to which the tree height and crown surface parameters are given at this time. How can I currently see the crown areas, which are calculated in m2, compared to the tree crown factor?
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| From the sentence "Tree height multiplied by" tree crown factor "judge wheterh the surrounding cells are in the shade." I cannot figure out what exactly you calculate with this. Is this the crown diameter / cross section, radius, perimeter, area?
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| Does the tree then have 1 fixed height value, or does it calculate in the case of a geotiff with several height values to calculate a kind of sphere shape?
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| Do you start from a surface file (I see that the few BGT trees are currently defined together as a polygon)?
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| What exactly do you mean by foliage? Is that the height of the trees relative to the ground level?
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| What exactly does the foliage crown factor mean? What is calculated with that? I assume the crown diameter?
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| How are trees currently included in the model?
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| What is the effect of 1 tree compared to a group of trees (or forest) in the model? Is a distinction made in this?
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| Is it possible to add your own tree file to the module?
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| What should this file look like?
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| I now have a point file for all trees in a test area, with a tree height (m) and a crown area (m2) for each tree. Can I also use the height and crown area from my file in the model? I have tried a few things but it seems that you assume that there is a fixed foliage crown factor for every tree, so that is the same for every tree? I would therefore like to use my own calculated crowns, because a fixed factor is out of the question. Is that possible?
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This page contains Frequently asked questions related to the Heat Overlay and DPRA Heat Module. Some have been grouped onto separate pages.