Macquarie Island Five-Metre Resolution Digital Elevation Model

A digital elevation model of Macquarie Island with a five-metre grid interval, referenced to mean sea level. The dataset was improved by Dr Michael Roach of the University of Tasmania and provided to the Australian Antarctic Data Centre in January 2006. The original data is from 2002.

Use Cases

• Analyze terrain elevation and slope using the five-metre grid interval for geological mapping.
• Model coastal erosion or inundation by referencing heights to mean sea level.
• Generate five-metre contour lines for topographic visualization and analysis.
• Integrate with coastline GIS datasets for comprehensive island geomorphology studies.

Strengths

• Five-metre grid interval provides detailed topographic resolution.
• Heights are referenced to mean sea level, a standard vertical datum.
• Dataset was improved and validated by a geophysics lecturer at a research university.

Limitations

• Dataset is from 2002 and may not reflect recent topographic changes.
• Spatial coverage is limited to Macquarie Island only.
• Specific row/column counts and file size are unknown.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC), originating from NASA Earthdata.

Collection Method

Derived from AIRSAR data, improved by Dr Michael Roach.

Time Range

2002

Freshness

2002-02-01

Geography

Macquarie Island, UTM Zone 57, WGS 84 coordinates.