Title

Grerang Gravel Pits DEM 

Resource Type

Dataset  

Spatial representation type

Grid  

Horizontal Accuracy

0.2m  

Code

MGA Zone 55 GDA94 

 

Title

XYZ ASCII 

Topic category

• Imagery base maps earth cover

Use limitation

Departmental 

Classification

Limited Distribution  

Description

The DEM originates from the source Photography. Using "Digitals" software a 10m Automatic DEM is produced and checked. Breaklines were mapped using photogrammetry including top and toe of benches, stockpiles, roads, water boundaries and general breaklines. From the 10m DEM and breaklines a 1m DEM is produced, manually checked and adjusted using photogrammetry. This was compared to previously acquired LiDAR DEM and areas of no change were retained. 

Classification

Unclassified