Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0008102793 

Topic category

• Elevation

Resource Constraints

Use limitation

General 

Classification

Unclassified  

Other Dataset Details

Format

ESRI Ascii 

Spatial

Spatial representation type

Grid  

Reference system identifier

MGA Zone 55 GDA94

Resolution

Horizontal Accuracy

0.3m  

Vertical Accuracy

0.2m  

Row Resolution

1cm  

Column Resolution

1cm  

Quality

Conceptual Consistency

This dataset consists of every point that is part of the classified ground surface. All non-ground objects such as vegetation and man-made structures (eg. bridges, fences) have been removed from the DEM. The elevation values are continuous, floating point values. 

Missing Data

No limiting on triangulation has been applied to avoid any voids to be left in the gridded DEM. The DEM has been generated across the full extent of the LiDAR data coverage achieved. 

Lineage

Description

The 1m DEM is a dataset representing ground surface elevation and is derived from the Ground classified LiDAR point cloud. A 1m grid is projected on a triangulated version of the un-thinned ground point dataset, where triangles have been drawn between the 3 nearest surrounding ground points. A weighted averaged elevation is adapted from the triangulated plane (interpolation type: triangulated height interpolation). The gridded DEM dataset has been interpolated across voids which may be caused by either no LiDAR returns due to water bodies, or removal of buildings, vegetation or other above ground features. No limiting on triangulation has been applied to avoid any voids to be left in the gridded DEM. The DEM has been generated for the full extent of the LiDAR coverage achieved. 

Acquisition Date

Begin date

2010-02-12 

End date

2010-10-26 

Instrument

Name

Leica ALS50-II 

Type

LIDAR 

Platform Type

Aerial 

Acquisition Data (Common)

Status

complete  

Assembly

Single  

Tile Size

1 km  

Raster Details

Number of Bands

1 

Band List

1  

Resampling Kernel

Unknown  

Platform Name

Fixed Wing Aircraft  

Seamlessness

Full  

Rectification Type

Orthorectified  

DEM Details

DEM Creator

Supplier  

Aerial Survey Details

Runs

1001 

Run Orientation

Not Entered  

Swath Width

992 

Side Overlap

20 

Flying Height Unit

agl metre  

Flight Height

1750 

About the Metadata Record

Metadata identifier

f85298eb-9f68-53ea-909f-282c07931abf

Resource Type

Dataset  

Date info ( Revision )

2023-03-22T00:22:23

Standard Name

ISO 19115-3:2018 

Profile Name

DELWP Profile 

Profile Version

Version 1 

Profile Date

2019-05-24  

Metadata Constraints

Classification

Unclassified