Melbourne Water Flood Mapping - Contour

dataset
Dataset: Melbourne Water Flood Mapping - Contour Assembly: Mosaic
 
Citation proposal Citation proposal

Melbourne Water Flood Mapping - Contour

Department of Transport and Planning

Description

Title
Melbourne Water Flood Mapping - Contour 
 
 

Temporal

Time period
2007-04-112007-07-23 
 
 

Spatial

Horizontal Accuracy
0.35m 
Vertical Accuracy
0.25m 
Code
MGA Zone 55 GDA94 
 
 

Format

Title
Shapefile, MapInfo TAB 
 
 

Contacts

  Point of contact

  Custodian

 
 

Keywords

Topic category
  • Elevation
 
 

Resource Constraints

Use limitation
Withdrawn 
Classification
withdrawn 
 
 

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. 
 
 

Metadata Constraints Metadata Constraints

Classification
Unclassified 
 
 

Quality

Attribute Quality
Positional Accuracy
Conceptual Consistency
Comments
The contours are consistent with respect to contour interval, smoothness, cartographic display and elevation attribution. 
 
Missing Data
Comments
The extent of the contours supplied are complete for the defined project extents. 
 
Excess Data
 
 

Acquisition Info

Platform Type
Aerial 
Assembly
Mosaic 
Tile Size
2 km 
 
 

Contour Data Details

Contour Interval
0.5m 
 
 

Survey Details

Sensor

Title
ALTM3100EA 
Identifier
Aerial

Type
LIDAR 
Cloud Cover Percentage
0 
 

Aerial Survey Details

Run Orientation
NE-SW 
Swath Width
600 
Flying Height Unit
agl metre 
Flight Height
1000 
 
 


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