Aerial photography can be used to produce a variety of mapproducts useful for landscape management and engineeringapplications.
i. Briefly explain how a Digital Elevation Model (DEM) of alandscape can be generated from overlapping aerial photographs.
ii. What is an orthophoto? How does it differ from an aerialphotograph?
iii. A potentially very useful product that can be supplied tolandscape managers and engineers is a ‘stereo-model’ that can beviewed, interpreted, and measured using heads-up 3-dimensionalviewing technology:
a. Explain how two images can be displayed on a computer screenand visualised in 3-dimensions?
b. What advantages might this technology offer a practising landmanager or engineer?
