Deformation of the Submerged Slope of the Anapa Bay-Bar From 2012 to 2018

Resumo

Abstract—The article considers the long-term relief dynamics of the submerged slope of the Anapa bay-bar. The Anapa bay-bar consists of five morphological elements—Solenoe Lake, the Bugazskaya bay-bar, Blagoveshchensky butte, the Vityazevskaya bay-bar, and the Vityazevo–Anapa sector—and each has its own particular features of changes in the submerged slope. The erosion–accumulation sites alternate from year to year. In general, from 2012 to 2018, the amount of sediments on the submerged slope of the Anapa bay-bar decreased by 1.89 million m³. From 2012 to 2018, accumulation of 0.20 and 0.14 million m³ was observed in the area of Solenoe Lake and Blagoveshchensky butte, respectively. From 2012 to 2018, the submerged slope was eroded by 0.52 and 0.64 million m³ in the area of the Bugazskaya and Vityazevskaya bay-bars, respectively, and from 2013 to 2018, by 1.08 million m³, in the Vityazevo–Anapa sector. Approximately 600 m of coastal area is subjected to the greatest alteration along the profile to a depth of 6–7 m: submerged bars form and migrate in this area.