OTTrees is a Google Map that visualises Ottawa's open data of trees owned and cared for by the city. The database includes information about more than 40,000 individual trees.
Using the map it is possible to view the seasonal foliage of any species of Ottawa's trees. The foliage is estimated by taking the diameter at breast height of each tree and calculating the approximate spread of the tree given it’s species and estimated age.
The filters in the sidebar allow the user to visualise the foliage in different seasons, select individual species of trees or any combination of species and also to show the allergen potential for different locations in the city.
Hat-tip: Google Street View World
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