Ground and Satellite-Based Methods of Measuring Deformation at a UK Landslide Observatory: Comparison and Integration

With the advances of ESA’s Sentinel-1 InSAR (Interferometric Synthetic Aperture Radar) mission, there are freely available remote sensing ground deformation observations all over globe that allow continuous monitoring natural hazards and structural instabilities. The Digital Environment initiative in UK aims to include these data effort at forecasting mitigating across UK. In this paper, we present a case study Hollin Hill landslide North Yorkshire where variety ground-based geophysical measurements for comparison with data. To UK’s Environment, it is important understand advantages limitations interpret them appropriately. observatory (HHLO) used by British Geological Survey processes, trial new technologies methodologies slope stability characterisation monitoring. July 2019, six corner reflectors were installed improve coherence measurements. We use acquired between October 2015 January 2019 behaviour landslide, find line-of-sight component down-slope movement 2.7 mm/year descending track, 7.5–7.7 ascending track. also highlight seasonal landslide. Using after installation reflectors, able track most recent on occurred 2021. This result agreement other such as tracking pegs, soil moisture derived from electrical resistivity tomography.