The rapid development of remote sensing technology for obtaining high-resolution digital elevation models (DEMs) in recent years has made them more and more widely available and has allowed them to be used for morphometric assessment of concave landforms, such as valleys, gullies, glacial cirques, sinkholes, craters, and others. The aim of this study was to develop a geographic information systems (GIS) toolbox for the automatic extraction of 26 morphometric characteristics, which include the geometry, hypsometry, and volume of concave landforms. The Morphometry Assessment Tools (MAT) toolbox in the ArcGIS software was developed. The required input data are a digital elevation model and the form boundary as a vector layer. The method was successfully tested on an example of 21 erosion-denudation valleys located in the young glacial area of northwest Poland. Calculations were based on elevation data collected in the field and LiDAR data. The results obtained with the tool showed differences in the assessment of the volume parameter at the average level of 12%, when comparing the field data and LiDAR data. The algorithm can also be applied to other types of concave forms, as well as being based on other DEM data sources, which makes it a universal tool for morphometric evaluation.

The functioning of plant associations, including forest associations, in the coastal cliff edge zone of the Pomeranian Bay in the Wolin National Park (WNP) is determined by short-term factors related to the dynamics of erosion and denudation processes and long-term phytoclimatic conditions' changes. The study presents a temporary analysis of the occurrence of sea abrasion and water and aeolian erosion, based on the applied hydrometeorological threshold values. The influence of changes in phytoclimatic conditions on the development and productivity of coastal forests with the dominant species of Fagus sylvatica was also presented. Assessments of spatial susceptibility to erosion of the cliff coast and the existing plant associations were also carried out in conditions of the risk of coast erosion. It was found that 55% of the cliff edge zone of the Pomeranian Bay of the WNP and the forest associations (mainly Luzulo pilosae-Fagetum) occurring there are in the zone of particular risk of increased erosion and denudation processes. In addition, unfavourable trends in changes in phytoclimatic conditions in the 21st century were found, which reflect climate changes unfavourable to the development of beech forests on Wolin Island.

This study compares two automated geomorphometric methods – geomorphons and the Topographic Position Index (TPI) – for detecting glacial curvilineations (GCLs) within the Komorze tunnel valley, NW Poland. Using LiDAR-derived digital elevation model (DEM), outputs from each method were evaluated against a manually refined reference. Geomorphon-based classifications, particularly at a flatness threshold (FT) of 3, most closely matched the manual interpretation, preserving ridge structure and spatial coherence. TPI methods often over-fragment the ridges at smaller neighbourhood sizes. These results suggest that while manual delineation remains most reliable, automated tools such as geomorphons can meaningfully support large-scale GCL mapping with careful parameterisation.

The aim of this paper is to present the stages of development of an alluvial cone as an indication of change in natural environment conditions. a detailed research was conducted within the upland regions of Drawsko Lakeland. At the valley mouth of one of the erosional-denudational valleys an alluvial cone in question splays out. The imparity between the capacity of the erosional-denudational valley and the capacity of the alluvial cone indicates that the main stage of erosion had taken place before the cone’s deposition. During the beginning stage the material acquired from the dissection was most likely delivered directly to the channel of Dębnica river and was incorporated in the fluvial transport. The cone was formed during the later stage. The results of the radiocarbon analyses reveal that the formation of the alluvial cone and the valley associated with the cone took place during the Subatlantic. It was also estimated that the cone aggraded with the rate of approximately 3,9 mm per year

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.