Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0008103059 

Topic category

• Elevation

Resource Constraints

Use limitation

General 

Classification

Unclassified  

Other Dataset Details

Format

LAS 1.2 Classification Level 2 

Spatial

Spatial representation type

Point Cloud  

Reference system identifier

MGA Zone 55 GDA94

Resolution

Horizontal Accuracy

0.18m  

Vertical Accuracy

0.1m  

Quality

Conceptual Consistency

All classification codes used are complete and valid. The definition of the ground under trees may be less accurate. 

Missing Data

The LiDAR datasets representing various ground and non-ground features are complete for the defined project extents. The vegetation classification codes may include non-ground classified points like, cars, fences tanks, powerlines, small sheds etc. 

Lineage

Description

LiDAR data was captured using onboard GPS, IMU and a network of ground base stations. Trajectories and laser data was corrected initially using AusGEOID09 and then adjusted to AHD using local PSM's. LiDAR data is classified into multiple ground and non-ground classes using standard classification algorithims. Water was identified based primarily on laser intensity but also by at the laser data in profile. These points were then manually reclassified from ground to water. Default points represent laser returns considered to be noise returns, ie points above ground but below 0.10m. The Vegetation Class were classifed through auto classification algorithims and seperated into three classes Low (0.10 - 0.30m), Med ( 0.30m-2m) and High (+2m). Buildings were automatically classifed from the High Veg Class, and bridges were manually identified and classified. 

Acquisition Date

Begin date

2014-11-12 

End date

2015-01-16 

Instrument

Name

ALTM Gemini 

Type

LIDAR 

Platform Type

Aerial 

Acquisition Data (Common)

Status

complete  

Assembly

Single  

Tile Size

1 km  

Point Cloud Details

Pulse Mode

Single 

Scan Rate (Hz)

34Hz  

Scan Frequency (kHz)

70kHz  

Scan Angle (degrees)

25degrees  

Footprint Size (m)

0.33000001m  

Point Density Actual (pts/m2)

1points/m2  

Point Spacing Actual (pts/m)

1points/m2  

Ellipsoid Provided

0 

Geoid Vertical Datum

AUSGEOID09  

Class Level

2 

Classification

Class Level	Class 0 - Unclassified	Class 1 - Default	Class 2 - Ground	Class 3 - Low Vegetation	Class 4 - Medium Vegetation	Class 5 - High Vegetation	Class 6 - Buildings/Structures	Class 7 - Low/High Points	Class 8 - Model Key Points	Class 9- Water	Class 10 - Bridge	Class 12 - Flightline Overlap Points
2	0	1	1	1	1	1	1	1	1	1	1	1

Aerial Survey Details

Runs

46 

Run Orientation

Various  

Swath Width

1000 

Side Overlap

30 

Flying Height Unit

agl metre  

Flight Height

1100 

About the Metadata Record

Metadata identifier

aadff9b9-10b3-5c5b-a1ee-4158bdaa5bb8

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