Benchmarking and inter-comparison of Sentinel-1 InSAR velocities and time series

Different InSAR algorithms and methods produce velocities times series that are not identical, even using the same data for area. This inconsistency can cause confusion be a barrier to uptake widespread use of in commercial sector. With availability Sentinel-1 SAR suite new academic sectors, it is timely develop method comparison different results. In this study, we focus on developing testing an independent robust methodology assessment processing Our proposed adapted from Terrafirma Process Validation project; compare geocoded line-of-sight time series, density coverage, as well some qualitative metrics. We area Glasgow (UK) processed 4 approaches modified RapidSAR, SqueeSAR, GAMMA-IPTA conventional StaMPS. The main areas ground motion detected all approaches, with average standard deviation velocity differences inter-comparison pairs polygons equal 1.1 mm/yr. therefore provides comparable results approaches. However, there considerable aspects results, particular their coverage. discuss reasons these suggest framework validation could used future national or pan-national services.