Vertical Accuracy 50cm - Contour

dataset

Dataset: Vertical Accuracy 50cm - Contour Assembly: Single

Citation proposal Citation proposal

Vertical Accuracy 50cm - Contour

Department of Transport and Planning

https://metashare.maps.vic.gov.au/geonetwork/srv/eng/catalog.search#/metadata/1b572ed9-b32e-59a5-a1b5-893619b9e5c6

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: ANZVI0008100080

Topic category

Elevation

Resource Constraints

Use limitation: General

Classification: Unclassified

Other Dataset Details

Format: Shapefile, MapInfo TAB

Spatial

Spatial representation type: Contours

Reference system identifier: MGA Zone 54 GDA94

Resolution

Horizontal Accuracy: 0.5m

Vertical Accuracy: 1.25m

Quality

Conceptual Consistency: The contours are consistent with respect to contour interval, smoothness, cartographic display and elevation attribution.

Missing Data: The extent of the contours supplied are complete for the defined project extents.

Lineage

Description: All contour generation was carried using Intergraph Microstation software. The contours are created by referencing the all ground LiDAR strikes. A number of macros are applied to the all ground strikes before contour generation. These macros basically thin and smooth the LiDAR ground strikes. Contours are then generated automatically from the smoothed LiDAR strikes. Contours are derived by interpolation of a surface model generated from LiDAR ground points using process parameters optimised to suit the terrain. The contours are then checked using any available imagery as a backdrop and line work cleaned where required. Final macros are applied to the contour line work which check for dangles, loops, spikes etc. At the final stage we use FME software to convert the Microstation design files to ESRI Shape and MapInfo TAB files.

Text

No information provided.

Acquisition Date

Begin date: 2008-01-14

End date: 2008-03-23

Instrument

Name: Optech ALTM 3025

Type: LIDAR

Platform Type: Aerial

Acquisition Data (Common)

Status: complete

Assembly: Single

Tile Size: 5 km

Cloud Cover Percentage: 0

Contour Details

Contour Interval: 2.5m

Aerial Survey Details

Runs: 32

Run Orientation: Various

Swath Width: 2200

Flying Height Unit: agl metre

Flight Height: 3000

About the Metadata Record

Metadata identifier: 1b572ed9-b32e-59a5-a1b5-893619b9e5c6

Contact