Reconnaissance geophysical and hydrometeorological studies of the cryolithozone in Salekhard city area and on the lake near the Rayizsky Glacier (Polar Urals)

In recent years, Arctic permafrost and glaciers have been thawing faster due to climate change, affecting landscapes, plants, animals, and infrastructure. Since 65% of Russia is covered by permafrost, understanding its changes is important. The "Strategy for the Development of the Arctic Zone of the Russian Federation and Ensuring National Security until 2035" emphasizes thermometric monitoring, but geophysical methods like GPR and electrical prospecting are vital for a comprehensive investigation. To address this, St. Petersburg State University has initiated a CORELIS master's program, aimed at training specialists in polar region studies using various methods. The program emphasizes English instruction to include international students and Russian students. We used GPR profiling, electrical sounding, and actionmetric measurements/albedo (intensity of solar radiation) to study the area. Preliminary results showed significant permafrost melting, and discovered taliks (unfrozen areas), with variations in resistivity correlating by soil composition and moisture levels. This provided important heat balance data for future permafrost studies under different climate conditions.