Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0008104186 

Topic category

• Elevation

Resource Constraints

Use limitation

Restricted 

Classification

Restricted  

Other Dataset Details

Format

ESRI Ascii 

Spatial

Spatial representation type

Grid  

Reference system identifier

MGA Zone 54 GDA2020

Resolution

Horizontal Accuracy

0.30m  

Vertical Accuracy

0.10m  

Row Resolution

10cm  

Column Resolution

10cm  

Quality

Conceptual Consistency

The DEM surface was generated using the ground class LiDAR points and is equivalent of a traditional and standard ground surface model. 

Missing Data

Standard DEM with complete coverage of Budj Bim World Heritage Area. 

Lineage

Description

The DEM is generated from the LiDAR point data classified as Ground so that it defines the bare earth ground surface. The DEM generation employs a Point to TIN and TIN to Raster process with Natural Nearest Neighbour interpolation. Ground class preparation: The data was processed with a classification macro designed to achieve a ground point density of approximately 1 point every 5m² on the ground as a starting point. Additional near ground points are added or excluded from ground classification base on angle and distance tolerances in the ground filter. Manual effort was applied to check ground terrain for low spikes, un-modelled areas or areas where excessive low vegetation was included. Above ground points were classified with automatic classification routines and supervised with manual quality assurance checks. The final classified dataset contains more than 40 ground points per m² on average. Hydro-flattening has been undertaken for natural and man-made water bodies, including Lake Condah, outside of the lava flow. 

Acquisition Date

Begin date

2020-03-25 

End date

2020-03-31 

Instrument

Name

Reigl VQ-780i 

Type

LIDAR 

Platform Type

Aerial 

Acquisition Data (Common)

Status

complete  

Assembly

Single  

Tile Size

0.5 km  

Cloud Cover Percentage

0 

Raster Details

Number of Bands

1 

Band List

1  

Resampling Kernel

Nearest Neighbour  

Platform Name

Fixed Wing Aircraft  

Seamlessness

Full  

Rectification Type

Not Entered  

DEM Details

DEM Creator

Supplier  

Aerial Survey Details

Runs

278 

Run Orientation

Various  

Swath Width

1200 

Side Overlap

60 

Forward Overlap

70 

Flying Height Unit

agl metre  

Flight Height

1000 

About the Metadata Record

Metadata identifier

6b657551-e81f-5ecf-a366-7b349af85a7e

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