Relative Height Point Features for New South Wales Terrain

Relative Height is a point feature class representing the vertical faces of cliffs within New South Wales, Australia. The dataset was created by Spatial Services, a business unit of the NSW Department of Customer Service, from stereoscopic aerial photography at scales of 1:25,000, 1:50,000, and 1:100,000. It was initially published on February 3, 2020, and is part of the state's Elevation and Depth Theme foundational data.

Use Cases

• Model coastal erosion or landslide risks by analyzing relative_height point features along cliff lines.
• Support safe navigation planning by integrating cliff face elevation data with hydrographic or road network datasets.
• Define maritime boundaries using precise vertical terrain data from the point feature class.
• Assess natural resource exploration sites by correlating relative height features with other geological layers.

Strengths

• Data captured at detailed cartographic scales: 1:25,000, 1:50,000, and 1:100,000.
• Serves as an authoritative digital representation of the Earth's surface within the Foundation Spatial Data Framework.

Limitations

• The service uses the GDA94 spatial reference, which may cause misalignment in modern GDA2020 coordinate systems.
• The dataset is scheduled for retirement, indicating it is not the long-term maintained version.

Provenance

Source

Spatial Services, Department of Customer Service NSW.

Collection Method

Initially captured from stereoscopic aerial photography.

Time Range

Initial publication date is February 3, 2020.

Freshness

Data currency is listed as January 1, 3000, but the service is retiring; update frequency is 'Other'.

Geography

New South Wales, Australia.