Snow Depth Map of Brämabüel, Davos, from UAS Photogrammetry at 10 cm Resolution

14 January 2015 snow depth data covering 285,000 m² at the top of Brämabüel, Switzerland, at 2490 m elevation. The map was generated using Unmanned Aerial System (UAS) digital surface models and is described in a 2016 paper published in The Cryosphere. It provides high-resolution spatial data on snow distribution for alpine terrain.

Use Cases

• Validate snowpack models based on high-resolution spatial snow depth distribution.
• Study spatial variability of snow in alpine terrain based on the 10 cm resolution surface models.
• Assess the effectiveness of UAS photogrammetry for snow monitoring compared to ground-based measurements mentioned in the description.
• Analyze snow ablation patterns over time, as referenced by the multi-date monitoring at another test site in the description.

Strengths

• Very high spatial resolution of 10 cm, allowing detailed terrain analysis.
• Covers a substantial area of 285,000 m² with all expositions at 2490 m elevation.
• Method validated against manual measurements with reported RMSE values (e.g., 0.07-0.30 m) for different ground covers.

Limitations

• Single date of observation (14 January 2015); temporal coverage is limited.
• Data format, column structure, and file size are unknown from the metadata.
• Last updated 2016-01-01 00:00:00; freshness should be verified for current applications.

Provenance

Source

ENVIDAT

Collection Method

Generated from Unmanned Aerial System (UAS) digital surface models using structure-from-motion photogrammetry.

Time Range

14 January 2015

Freshness

Last updated 2016-01-01 00:00:00

Geography

Brämabüel, Davos, Switzerland (CH1903LV03 coordinate system)