Fig. 10

Hierarchical Clustering on Principal Components (HCPC) of burned area in (A), (B) the Guinea-savanna ecological zone and in (C), (D) the Forest-savanna mosaic ecological zone from data compiled during research to characterize the fire regime for these two zones in Ghana, using a remote sensing approach, during the study period 2001 to 2021. The classification shows months or even years that recorded fire according to intensity. The text colors represent the months and years according to the intensity of the burned area: red = high-burned area, yellow = medium-burned area, orange = low-burned area, and green = little or not-burned area. The dashed boxes group the months and years according to the intensity of the areas burned; the blue lines show the similarity of months and years burned in terms of Euclidean distance linkage