A Step-Wise Workflow for SAR Remote Sensing of Perennial Heaving Mound/Crater on the Yamal Peninsula, Western Siberia

Climate change in the Arctic region is more significant than other parts of our planet. One manifestations these changes crater creation with blowouts a gas, ice and frozen soil mixture. In this context, dynamics studies long-term heaving mounds that turn into craters as result are relevant. A workflow for detecting assessing anomalous regions proposed. Areas increase ALOS-2 PALSAR-2 synthetic aperture radar (SAR) backscattering intensity detected first stage. These increases take place due to sudden local terrain slopes when scattering surface (mound slope) turns toward radar. Radar also rises depolarization at newly formed frost cracks. Validation anomaly carried out second stage through comparison multi-temporal digital elevation models obtained from bistatic interferometry TerraSAR-X/TanDEM-X data. At final stage, deformations assessed within areas using differential SAR (DInSAR) technique by The magnitude along line sight (LOS) was 22–24 cm period January 2019 2020. general, effectiveness perennial rate assessment their were demonstrated suggested workflow.