Sedimentary Waves of the Southeastern Barents Sea Shelf (Kanin Peninsula–Cheshskaya Bay)

Sedimentary waves are represented by a series of wavelike accumulative features with various degrees of morphological expression. These morphological forms are superimposed on the underlying surface with a clear stratigraphic unconformity. The hydrophysical processes are the main relief-forming factors of such features. During expeditions 38 (2018) and 41 (2019) of the R/V Akademik Nikolay Strakhov, the seafloor was mapped between the Kanin Peninsula and inlet of Cheshskaya Bay and new data were acquired on the morphology sedimentary waves. New data obtained in summer (July–August) 2019 show rapid changes in the natural hydrodynamic environment influencing the alternation of the sedimentary waves. The occurrence of hazardous natural processes, geological and geomorphological risks, and the level of threats were identified, especially with respect to the prolonged navigation period along the Northern Sea Route.