Blowouts on the seashore of the Curonian and Vistula Spits (in Russian territory)
The Curonian and Vistula spit (the Baltic Sea, Kaliningrad Oblast) were formed and developed in similar climatic conditions, but the deflation processes on the spits seashores occur with different intensity, and the forms of the deflation relief differ based on quantitative parameters while coincide in terms of typology. During 2019 field study, 330 blowouts per 25 km were recorded on the surface of the marine foredune of the Russian part of the Vistula spit, i.e. 13.8 blowouts per 1 km on average. In opposite, 333 blowouts per 49 km or 7.1 blowouts per 1 km were recorded on the foredune of the Curonian Spit in 2016. The double prevalence of the number of blowouts per 1 km of the Vistula Spit shore is due to the lack of regulation of tourist activities, in contrast to the Curonian Spit, which has the status of a specially protected natural area. A comparative analysis of the blowouts of the Curonian and Vistula spits showed that a trend in the development of deflation processes is determined by natural and climatic conditions, but an anthropogenic activity affects the intensity of the deflation.