Assessing UAV-based laser scanning for monitoring glacial processes and interactions at high spatial and temporal resolutions

A groundbreaking study demonstrates the potential of UAV-based laser scanning (UAV-LS) as a powerful tool for monitoring glacial processes with unprecedented spatial and temporal precision. Conducted at Vatnajökull National Park in southeast Iceland, the research successfully mapped surface elevation changes with median errors under 0.1 meters, reconstructed calving front geometry, and improved estimates of ice volume loss through calving. Additionally, it enhanced detection of crevasse morphology, offering new avenues for monitoring their evolution over time. The study's innovative approach involved repeat surveys at sub-daily, daily, and weekly intervals, producing high-resolution point clouds that outperformed traditional UAV-SfM methods in glacial settings. These findings highlight the significant role UAV-LS can play in advancing our understanding of rapidly changing glacial environments and improving mass balance assessments.

Baurley, N. R., Tomsett, C., & Hart, J. K. (2022). Assessing UAV-based laser scanning for monitoring glacial processes and interactions at high spatial and temporal resolutions. Frontiers in Remote Sensing, 3. https://doi.org/10.3389/frsen.2022.1027065