Cordalba 2020 Aerial Imagery with 6cm Resolution

39 RGB aerial images of Cordalba, captured on August 26, 2020, with a 6 cm spatial resolution. The orthophoto product has a spatial accuracy of 3 pixels at 68% confidence and was rectified using a 5-meter digital terrain model.

Use Cases

• Generate high-resolution base maps by combining the 6 cm orthophotos with other spatial data layers.
• Assess ground-level spatial accuracy using the provided RMSE values of 0.081m in X and 0.027m in Y.
• Analyze landscape changes over time using the 2020-08-26 acquisition date as a temporal reference point.
• Identify areas where spatial accuracy may be reduced due to dense vegetation, as noted in the limitations.

Strengths

• High spatial resolution of 6 centimeters per pixel.
• Specific spatial accuracy metrics: 3 pixels at 68% confidence, with RMSE of 0.081m (X) and 0.027m (Y).
• Imagery captured with a 300 mm focal length from a flying height of 8300 feet, providing detailed ground coverage.

Limitations

• Limited to 39 images, offering a small sample size for the area.
• Spatial accuracy is reduced for elevated structures like rooftops and tree canopies due to relief displacement.
• Accuracy is further diminished in areas of dense vegetation, limiting reliable measurement.

Provenance

Source

Bundaberg Regional Council Open Data, author brc_gis.

Collection Method

Aerial imagery captured with an A3 35 sensor, processed into orthophotos using a 5m digital terrain model.

Time Range

2020-08-26.

Freshness

Data was captured in 2020; metadata was last updated in March 2026.

Geography

Cordalba, Australia.