Title

Central Highlands Water - DEM 

Time period

2011-10-032011-10-19 

Horizontal Accuracy

0.37m  

Vertical Accuracy

0.15m  

Code

MGA Zone 54 GDA94 

Title

XYZ ASCII 

Topic category

• Elevation

Use limitation

General 

Classification

Unclassified  

Description

The DEM was derived from a ground model generated by triangulation of the LiDAR points classified as ground, model keypoints and water with points exported on the even metre. Gaps of up to 50m are interpolated and filled by triangulation of the surrounding cell values. Dams and lakes larger than 625m2 have been hydro-flattened. 

Classification

Unclassified  

Attribute Quality

Positional Accuracy

Conceptual Consistency

Comments

The DEM has been interpolated from returns classified as ground, keypoints or water only. Accuracy may be reduced in areas of diminished returns. 

Missing Data

Comments

Gaps greater than 50m2 may be present in areas of diminished returns over water and under dense canopy. 

Excess Data

Platform Type

Aerial  

Assembly

Single  

Tile Size

1 km  

Raster Type

DEM  

X Pixel Resolution (cm)

2cm  

Y Pixel Resolution (cm)

2cm  

Seamlessness

Full  

Number of Bands

1 

Band List

1  

Resampling Kernel

Unknown  

Rectification Type

Orthorectified  

Platform Name

Fixed Wing Aircraft  

DEM Creator

Supplier