Central Highlands - Canopy Height (CHM)

dataset

Dataset: Central Highlands - Canopy Height (CHM) Assembly: Single

Citation proposal Citation proposal

Central Highlands - Canopy Height (CHM)

Department of Transport and Planning

https://metashare.maps.vic.gov.au/geonetwork/srv/eng/catalog.search#/metadata/2f7c924d-9ae8-5e15-b857-1ce3d9189a1e

Details

Contacts

Point of contact

Department of Transport and Planning - Coordinated Imagery Program

PO Box 500

East Melbourne

Victoria

3002

Australia

Identifiers and Keywords

ANZLIC Id: ANZVI0008101143

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: 0.2m

Vertical Accuracy: 0.2m

Row Resolution: 1cm

Column Resolution: 1cm

Quality

Conceptual Consistency: The data adheres to the logical rules of data structure, attribution and relationships as per project specifications.

Missing Data: The project area boundary was flight planned with an additional 100m buffer to ensure full coverage would be obtained, and coverage was reviewed at the end of each days capture. Classification is validated at multiple stop points throughout the processing workflow to ensure classes are correct, coverage is complete and interpolation is minimal in generated surfaces.

Lineage

Description: The CHM (canopy height above ground) surface was produced by firstly generating a vegetation elevation surface by selecting the highest LiDAR point present on each one metre cell with classification of low, medium, or high vegetation (4, 5, or 6), and assigning elevation. The DEM was subtracted from the vegetation elevation surface to form the CHM. The CHM was exported to ESRI Floating Point grid Ascii as 1km by 1km tiles.

Text

No information provided.

Acquisition Date

Begin date: 2016-01-09

End date: 2016-08-06

Instrument

Name: Trimble AX60

Type: LIDAR

Platform Type: Aerial

Acquisition Data (Common)

Status: complete

Assembly: Single

Tile Size: 2 km

Raster Details

Number of Bands: 0

Band List: 1

Resampling Kernel: Bilinear

Platform Name: Fixed Wing Aircraft

Seamlessness: Full

Rectification Type: Orthorectified

Aerial Survey Details

Runs: 2215

Run Orientation: Various

Swath Width: 982

Side Overlap: 50

Flying Height Unit: asl metre

Flight Height: 850

About the Metadata Record

Metadata identifier: 2f7c924d-9ae8-5e15-b857-1ce3d9189a1e

Contact