Title

Vicmap Elevation DEM 10m 

Alternate title

VICMAP_ELEV_DEM_10M 

Purpose

Vicmap Elevation provides an accurate representation of natural relief features across Victoria. It is used in a variety of applications, particularly in emergency services, natural resource management, planning and development, and digital map publication. 

Supplemental Information

History: In 2016, the 10m DEM was improved and updated using recent high-resolution LiDAR surveys. Related Documents: None Please see Vicmap product description for more detailed information. This can be found on the Vicmap webpage. https://www.land.vic.gov.au/maps-and-spatial/spatial-data/vicmap-catalogue/vicmap-elevation 

Status

Completed  

Code

4283 

Maintenance and update frequency

Not planned  

Title

Native Format: ESRI Grid 2 

Topic category

• Elevation
• Environment
• Geoscientific information

Use limitation

Access through https://vicmap-data.maps.arcgis.com/home/item.html?id=ac169d7b7c4a487183bd11aae7fa17ed or ELVIS - Elevation and Depth - Foundation Spatial Data https://elevation.fsdf.org.au/ 

Classification

Unclassified  

Statement

Dataset Source: Content had been supplemented and/or verified with information supplied by: Local Government Water Authorities Catchment Management Authorities Private Industry Department of Sustainability and Environment Dataset Originality: Derived 

Description

The methodology utilizes a combination of ArcInfo TIN and ANUDEM processes to ensure that stream enforcement is achieved while maintaining a DTM which closely conforms to the original input data. More information on the methodology can be found in the product. 

Classification

Unclassified  

Attribute Quality

Comments

The vertical accuracy associated with the DEMs is +/-5m or better. The overall vertical accuracy of the product is calculated to be 2.96m. Beware that reprojecting, changing format or resampling causes changes to the height values in the DEM. 

Positional Accuracy

Comments

The spatial accuracy for Vicmap Elevation DEM 10m is inherited from the spatial accuracies of its many source datasets. The most consistently used underlying product to create the Vicmap DEM and therefore the base for positional accuracy is the Vicmap Elevation 10-20 Contours & Relief, therefore the positional accuracy for Vicmap Elevation DEM 10m is 12.5m horizontally and 5m vertically or better. This accuracy has been checked through a formal quality assurance process. 

Conceptual Consistency

Comments

The DEM values across initial basin tiles have been constructed to ensure smooth consistent elevation values are achieved. 

Missing Data

Comments

Vicmap Elevation DEM 10m covers the State of Victoria. 

Excess Data