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Progress in Earth and Planetary Science
Fig. 8 | Progress in Earth and Planetary Science

Fig. 8

From: Ground subsidence and polygon development due to thermokarst in the Lena-Aldan interfluve, eastern Siberia, revealed by satellite remote sensing data

Fig. 8

(Top panel) Location of sampling points in the selected towns (Syrdakh, Churapcha, Mayya and Amga) for calculating density of ice wedge polygons. White-circle dots indicate the location of displacement time series shown in Figs. 4, 5, 6 and 7, and the rectangle dots indicate the others; (Bottom panel) Box plots of polygon density in the four towns. Median value of polygon density (M) and number of samples (N) are also shown in the figure

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