Аннотация:The characteristics of thermal erosion were studied at three different sites in the Lena River delta (Arctic Siberia). Based on a combination of field measurements, remote sensing, DGPS, UAV imagery and GIS analysis, quantitative estimates of morphometriccharacteristics of thermoerosional landforms and spatial (linear and areal) characteristics of thermoerosional processes were obtained, taking into account their activation and stabilization in recent years.