Morphological and lithological features of the erosiondenudation valley (Zielony Parów catchment) on the cliff coast of Wolin Island

Erosion-denudation valleys are an important element of the relief of the cliff coast of Wolin Island. Detailed research covered the Zielony Parów catchment area with an area of approximately 9.57 ha. The length of the studied form is 491 m. Lithological studies have shown that the bottom of the valley is composed of sandy sediments with a poor and moderate sorting. The data obtained from the airborne laser scanning (ALS) made it possible to conduct a study of the morphometric conditions of the catchment area. In the first stage, a digital elevation model (DEM) with a resolution of 1 m was created, which was then used to create a series of morphometric models. The analyses carried out made it possible to present a quantitative assessment of the valley morphology and to indicate the areas most susceptible to water erosion processes. The differences between the maximum height measured at the top of the valley slope (Hmax) and the minimum height at the bottom of the valley (Hmin) are 66.4 m. The data indicate a high potential energy of the relief. The maximum valley depth is 34 m. The catchment area is dominated by strongly inclined and steep slopes. Using erosion potential indices (LS-factor, SPI) allowed the selection of areas most susceptible to water erosion. In the analysed area, slopes in the south-eastern and western parts of the catchment show a high erosion potential.