ОГЛЯД МЕТОДІВ АНАЛІЗУ ТА ВІЗУАЛІЗАЦІЇ ДИНАМІКИ БЕРЕГОВИХ ЛІНІЙ

The purpose of this paper is to systematize current methods for analysing and visualizing shoreline dynamics and to identify the main methodological gap between the analytical capacity of modern satellite-derived shoreline tools and the practical interpretability of their outputs for engineers, coastal managers, urban planners and decision-makers. Methodology. The study is based on a review and comparative analysis of scientific literature, open-source software tools and methodological approaches used for shoreline extraction, change-rate calculation and spatio-temporal visualization. The review covers the historical transition from field measurements and manual aerial-photo interpretation to Landsat and Sentinel time series, SAR-based algorithms and visual analytics techniques. Results. The article summarizes the main groups of methods: index- and threshold-based approaches, edge-detection methods, object-based image analysis, classical machine learning, classify-then-refine subpixel methods, deep-learning semantic segmentation, cloud-scale composite SDS workflows, SAR-oriented techniques, transect-based statistical analysis and spatio-temporal visualization methods. The results show that current tools are already effective for shoreline extraction and the calculation of standard change metrics, but the outputs often remain fragmented between maps, tables, graphs, transects, quality-control indicators and time series. Scientific novelty. The paper proposes to consider visualization not as a secondary presentation stage, but as an independent methodological component of shoreline-dynamics analysis systems that supports the interpretation of complex spatio-temporal patterns. Practical significance. The findings can be used to define requirements for interactive web platforms and dashboard-based decision-support systems that combine shoreline maps, Hovmöller diagrams, uncertainty indicators and concise management-oriented summaries for coastal monitoring and planning