Post-disaster land-cover dynamics in the Dnipro floodplain on Khortytsia Island (Ukraine) after the 2023 Kakhovka dam failure: Sentinel-2 time series, sequential PCA, and unsupervised clustering

The materials provide a concise overview of unsupervised classification approaches and present classification outputs for the floodplain ecosystems of Khortytsia Island (Ukraine) affected by the 2023 ecological disaster (the Kakhovka dam failure and subsequent reservoir drawdown). The content highlights spatiotemporal differentiation of surface/habitat types and the emergence of new and transitional classes during post-disaster succession.