Data access - digital elevation model (DEM) - once off supply - all available DEMs
The Department has converted selected themes (overlays) of all its existing topographic paper maps to digital form and placed this data in a library. Digital data from new topographic mapping is also included. The scale ranges from 1:2500 to 1:25 000, and types of data available are not consistent across the state. The relief theme contains contours and spot heights. Digital topographic data is usually supplied in AS2482 format. Digital elevation models (DEM) contain relief data through a regular or irregular grid of elevation heights.