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Description
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This figure presents the results of hierarchical cluster analysis (Ward’s linkage, Euclidean distance) performed on standardized surface-water physicochemical parameters measured across 17 sampling sites in Lake Balaton during the peak bathing season (summer 2023).
The dendrogram illustrates spatial clustering patterns based on water chemistry variables, including pH, electrical conductivity (EC), total dissolved solids (TDS), dissolved oxygen, turbidity, and nutrient concentrations. Four major spatial clusters were identified, reflecting limnological differentiation among lake regions during intensive recreational use.
The analysis was conducted using z-score standardized input variables to ensure comparability across different measurement scales.
This figure supports interpretation of spatial water quality heterogeneity and provides contextual background for observed organic UV-filter distribution patterns in the lake. |