Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0008102992 

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 54 GDA94

Resolution

Horizontal Accuracy

0.3m  

Vertical Accuracy

0.1m  

Row Resolution

1cm  

Column Resolution

1cm  

Quality

Conceptual Consistency

The DEMs are consistent with respect to their visual representation of the ground features, continuity at the tile boundaries and representation of elevation values. The definition of the ground under trees may be less accurate. Accuracy estimates for terrain modelling refer to the terrain definition on clear ground. 

Missing Data

The DEM is complete for the defined project extent. Holes may exist in the dataset where there were insufficient laser strikes to produce a surface (eg. ocean, large water bodies). Such areas have been coded with a 'no data' value of 9999. 

Lineage

Description

ArcGIS 9.2 Terrain Grids were derived using the Natural Neighbor interpolation. This method uses the closest triangles and applies weights to the proportionate areas from the grid cell centroid to interpolate the value. It uses known elevation data, it does not make any predictions regarding the surface and accurately depicts existing troughs and peaks in the data and supports irregular point spacing, which suits the nature of LiDAR data. 

Acquisition Date

Begin date

2016-05-07 

End date

2016-05-07 

Instrument

Name

Optech ALTM Orion 

Type

LIDAR 

Platform Type

Aerial 

Acquisition Data (Common)

Status

complete  

Assembly

Single  

Tile Size

2 km  

Raster Details

Number of Bands

1 

Band List

1  

Resampling Kernel

Nearest Neighbour  

Platform Name

Fixed Wing Aircraft  

Seamlessness

Full  

Rectification Type

Orthorectified  

DEM Details

DEM Creator

Supplier  

Aerial Survey Details

Runs

8 

Run Orientation

E-W  

Swath Width

590 

Side Overlap

25 

Flying Height Unit

agl metre  

Flight Height

900 

About the Metadata Record

Metadata identifier

fb5d2851-7dfe-5653-b9fb-7b1dbfe346f4

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