Features of lithodynamics of pebble beaches at south coast of Crimea

The results of the study peculiarities lithodynamics pebble beaches South Coast Crimea based on long-term monitoring state performed at Black Sea Hydrophysical Subsatellite Proving Ground Marine Institute Russian Academy Sciences in settlement Katsiveli are presented. Long-term changes beach Limensky Bay since 1950 and shore protection structures 1988 characterized. volume income outcome pebbles during change wind-wave regimes was estimated by example artificial coast coastline section from to Ponizovka settlement. most influential factor formation Southern is alongshore “days-months” time scale, which leads significant fluctuations sea level near a corresponding directions bottom current velocity components perpendicular shoreline. largest expense beach-forming material (up 1 m3/day per linear meter beach) occurs storms, respectively, with eastern western directions. irreversible removal mass materials central sections bays coastal structures, partial restoration beaches—on their sections. Natural underwater reefs waters contribute preservation them. reason for gradual average degradation may be predominance storm winds over ones conditions blocking natural infrastructure objects.