On Thu, 24 Jan 2019 at 09:03, Joseph Eisenberg <joseph.eisenb...@gmail.com> wrote:
> > It would be usefull to know that a scrub area is so dense that it cannot > be walked through, > yet another scrub area is so sparse that a fire cannot propagate without > wind. > > I agree! Those definitions are a pretty good start. > > Probably it should relate to the density of the “canopy” of the main type > of vegetation. So a high-density woodland or scrubland or heath would have > the branches each tree or shrub touching its neighbors, while sparse or low > density would be widely spaced, with the “canopy” of the main vegetation > type covering about 50% of the area only, with plenty of room in between. > The problem there is when you get a thick canopy, but the actual ground is relatively clear. > Or different fill colors could be used. > "Normal" mid-density is the current mid-green, open becomes light / pale green, thick jungle becomes deep, dark green. Can't see that ever happening though :-( Thanks Graeme
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