Hekla Pumice Quarry UAS Survey Data from 2023

Brett Carr's dataset contains data products from two Unoccupied Aircraft System (UAS) mapping surveys of a pumice quarry in Iceland, flown on July 21, 2023. The 10.0 GB dataset includes digital elevation models, orthomosaics, point clouds, and 3D models processed with Structure-from-Motion photogrammetry. It provides reference information for pumice samples from the 1104 C.E. eruption of Hekla volcano.

Use Cases

• Creating high-resolution 3D models of quarry walls based on the 'Smart Oblique' and manual flight survey data.
• Georeferencing pumice sample locations using the orthomosaic and point cloud data with <5 cm positional accuracy.
• Analyzing tephra deposit stratigraphy and quarry morphology from the digital elevation model (DEM).
• Benchmarking Structure-from-Motion (SfM) processing workflows using the provided metadata and processing reports.

Strengths

• High positional accuracy of <5 cm for image geotags, enabled by a DJI D-RTK 2 High Precision GNSS Mobile Station.
• Includes multiple complementary data products: DEMs, orthomosaics, point clouds, and textured 3D models from two distinct survey strategies.
• Detailed processing metadata is provided, including camera specifications (20-megapixel CMOS sensor) and alignment RMS errors (2 cm for the Quarry Wall model).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for certain quantitative analyses.
• The dataset's 10.0 GB size may require significant storage and computational resources for full utilization.

Provenance

Source

Brett Carr via figshare

Collection Method

Data collected via DJI Mavic 3 Enterprise UAS flights and processed with Agisoft Metashape Pro using Structure-from-Motion photogrammetry.

Time Range

Survey conducted on July 21, 2023.

Freshness

Last updated 2026-04-27 23:24:07; freshness should be verified.

Geography

Pumice quarry in Iceland at 64.06° N, 19.79° W, containing material from the 1104 C.E. Hekla eruption.