Monitoring Ground Surface Deformation of Ice-Wedge Polygon Areas in Saskylakh, NW Yakutia, Using Interferometric Synthetic Aperture Radar (InSAR) and Google Earth Engine (GEE)

As one of the best indicators periglacial environment, ice-wedge polygons (IWPs) are important for arctic landscapes, hydrology, engineering, and ecosystems. Thus, a better understanding spatiotemporal dynamics evolution IWPs is key to evaluating hydrothermal state carbon budgets permafrost environment. In this paper, ground surface deformation (GSD) in IWP zones (2018–2019) their influencing factors over last 20 years Saskylakh, northwestern Yakutia, Russia were investigated using Interferometric Synthetic Aperture Radar (InSAR) Google Earth Engine (GEE). The results show an annual rate (AGSDR) Saskylakh at −49.73 45.97 mm/a during period from 1 June 2018 3 May 2019. All selected GSD regions indicate that relationship between land temperature (LST) positive (upheaving) with larger AGSDR, negative (subsidence) lower AGSDR. most drastic was observed Aeroport GSDs rates −37.06 tower 35.45 runway. negatively correlated LST low-centered (LCPs) high-centered (HCPs). Specifically, higher vegetation cover, thicker active layer. An evident degradation has been as reflected temperatures, lusher vegetation, greater layer thickness, fluctuant numbers areal extents thermokarst lakes ponds.