RIVER MOUTH AREA MORPHOLITHOGENESIS OF SOUTHERN PRIMORYE RIVERS

The peculiarities of development and distribution of morpholithogenesis types in the river mouth area of the Tumen, Razdolnaya, and Partisan rivers of Southern Primorye were studied. Satellite images from free access (Yandex-maps, GoogleMaps, Google Earth Pro) were used in the study. Analysis and comparison of multi-temporal images (1985-2024) allowed to obtain reliable information on spatial and temporal changes in the location of relief elements, to determine the morphodynamic channel types and zoning of river mouth area. The role and share of influence of fluvial (channel), tidal and wave processes in the river mouth area morpholithogenesis are analyzed. The leading processes of modeling the overwater (coastal) and underwater (bottom) relief were wave processes and storm surges in channel-type estuaries. Channel processes became the leading processes of modeling the overwater (coastal) and underwater (bottom) relief in estuaries of the liman type. The nature of the development of erosion-accumulative processes in estuaries and near-estuary parts of the seashore indicates that an important feature of their modern formation in Southern Primorye is the great influence of directed natural processes. These include sea level rise and vertical movements of the Earth’s crust of negative sign characteristic for this part of Primorye.

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