Bundaberg 2017 Orthophoto Imagery at 6cm Resolution

Bundaberg Regional Council Open Data provides aerial orthophoto imagery captured over Bundaberg on May 15-16, 2017. The dataset offers high-resolution 6cm RGB imagery, orthorectified using a digital terrain model and delivered as 1km x 1km GeoTIFF tiles.

Use Cases

• Generate high-resolution land cover maps using the 6cm spatial resolution RGB imagery.
• Analyze ground-level spatial features for urban planning, noting the stated +/- 3 pixel accuracy at 68% confidence for ground features.
• Use the Web Mercator Auxiliary Sphere projected tiles as a base layer for integrating other spatial datasets.
• Assess terrain and ground surface changes by comparing this DTM-rectified 2017 imagery with other temporal captures.

Strengths

• High spatial resolution of 6 centimeters per pixel.
• Stated spatial accuracy of +/- 3 pixels at a 68% confidence level for ground-level features.
• Imagery captured under controlled conditions with 55% forward and 60% side overlap.
• Systematic tiling into 1km x 1km GeoTIFF files for manageable processing.

Limitations

• Spatial accuracy is reduced for elevated structures like rooftops and tree canopies due to relief displacement.
• Accuracy is explicitly reduced in areas of dense vegetation.
• Temporal coverage is limited to two specific days in May 2017.

Provenance

Source

Bundaberg Regional Council Open Data, authored by brc_gis.

Collection Method

Aerial capture using a VisionMap A3-Edge sensor at 2440m altitude, processed with commercial and proprietary photogrammetric software.

Time Range

2017 05-15 to 2017-05-16.

Freshness

null

Geography

Bundaberg, Queensland, Australia.