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Aerial photos
I was out mapping again today (thanks to an enforced vacation from work), and Ive finished over half of the map. Im actually using aerial photos from Google Earth for the fieldwork - the orthophoto I got has more colour and better resolution, but has too much shade from the…
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trees, while the Google photo seems to have been taken at high noon, which is perfect. The Google one is on the left: I used OCAD to copy the contours and mark distinctive points on the map (mostly path junctions), and then I fitted sections from Google to create a basemap for the fieldwork. The contours arent that good either - theyre computer-drawn, and as our forests are evergreen the computer tends to miss anything under the tree cover. Ive even seen it draw a road as a gully! But thats what fieldwork is for.
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