- Managing DEMs
- Topographic maps
- Mobile apps
This is an old revision of the document!
NSW Spatial Services have undertaken a program to map all of NSW using lidar (light detecting and ranging) For details, see information on their elevation program.
Elevation data can best be accessed through the Geoscience Australia ELVIS program.
It can then processed with a GIS such as QGIS to create useful topographic maps. Instructions below are specifically for use with QGIS, though the general outline may be useful for other GISs.
The original topics here have now been moved to their own pages.
Any feedback/suggestions of improvements are welcome.
There are several primary data items for topographic maps that can be generated using the DEM data from the NSW Lidar.
Once you have a depressionless DEM, the following items can be generated:
GRASS - r.geomorphon function information page. This is a different approach that could be taken for landform classification. Yet to be tested.
Training lession for QGIS 3.4 on GRASS Setup and basic use. Specific GRASS setup is required to use any GRASS functions in QGIS.