Drone flights captured RGB imagery over the Grüenbödeli site near Davos, Switzerland, across three consecutive years. ENVIDAT processed this data to generate 3cm orthomosaics, 10cm digital surface models, and snow cover rasters. The collection represents a multi-year photogrammetric survey of an alpine environment.
Use Cases
- Model snow cover extent and changes over time by analyzing the Snow Raster 10cm resolution data across the 2020-2022 time range.
- Generate high-fidelity 3D terrain models for hydrological studies using the 10cm resolution Digital Surface Model (DSM).
- Perform land cover classification or object detection on the 3cm resolution Orthomosaic using computer vision techniques.
- Assess photogrammetric processing quality by comparing derived products like the DSM with the original RGB images.
Strengths
- Includes very high-resolution products: a 3cm orthomosaic and a 10cm digital surface model.
- Provides multi-temporal data from flights conducted over three years (2020, 2021, 2022).
- Offers multiple derived data products (DSM, Orthomosaic, Snow Raster) from a single survey.
Limitations
- Geographic scope is limited to a single alpine site (Grüenbödeli near Davos).
- Specific sample sizes, file formats, and total data volume are not provided.
Provenance
- Source
- ENVIDAT, processed from drone surveys.
- Collection Method
- Data captured with a Sony RX1R II camera on a Wingtra drone and processed with Agisoft Metashape Professional software.
- Time Range
- 2020-2022
- Freshness
- Data collection concluded in 2022, with no updates indicated since.
- Geography
- Grüenbödeli near Davos, Switzerland.