Figure 7

Results of the CA: division into groups of lakes by similarity of HM concentrations (a) and graphical presentation (b) [the (b) was generated in ArcMap 10.7, https://desktop.arcgis.com/en/arcmap/].

Results of the CA: division into groups of lakes by similarity of HM concentrations (a) and graphical presentation (b) [the (b) was generated in ArcMap 10.7, https://desktop.arcgis.com/en/arcmap/].