This was created almost completely with algorithms, the only starting data used was a 25cm Lidar DSM. Algorithms save hours of work when compared to doing this sort of thing by hand.
- Stream/drainage network delineation (5th - 9th order).
- DSM to DTM processing.
- Hillshade generation.
- Building extraction (some minor tweaks by hand required).
- Tree density, height, and boundaries.
- Standing water feature extraction.
Given the scope of some projects, mapping features by hand can be impractical, as a result, the use of algorithms to do much of the heavy lifting can be a more efficient option.
in addition to the inherent advantages of speed, algorithms allow experts to run simulations using the data assisting in the prediction of natural phenomena.
Comments