The suspended sediment flux along underwater slope of Anapa bay-bar (the Black Sea, Krasnodar region), is calculated. This flux, created under the influence of currents and wind waves, is calculated for the period from 1979 to 2015. Characteristic (i.e., characterizing the order of magnitudes) volumes of material moving along the shore are as follows: from northwest to southeast – 40000 m3/year, from southeast to northwest – 15000 m3/year. Almost throughout the entire length of the bay bar, there is a predominance of sediment flow directed from NW to SE. The exception is the southern part of the bar, adjacent to Anapa city, which is on average characterized by the prevalence of the flow from the SE to the NW. Change of sign of general sediment transport is observed southwards of the Vityazevo village. The presence of two-directional sediment flow ensures the existence and dynamic equilibrium of the two parallel underwater coastal bars along the Anapa bay-bar.
We present the methods and results of investigation of the Anapa bay-bar shoreline dynamics, obtained from the analysis of historical and recent data of satellite imaging and aerial survey. It was revealed that several erosion regions exist along the Anapa bay-bar shore (the revealed retreat of the water edge is greater than 70 m over 50 years). A relatively stable region was also found there. In addition, the analysis of short-period dynamics of the water edge location revealed that the short-term displacement of the water edge relative to its mean position is as high as 30 m. These data clarified the dynamics of the Anapa bay-bar shoreline, which is important for the understanding of lithodynamic processes in the coastal zone and developing the forecast of the further evolution of the bay-bar geosystem.