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Progress in Earth and Planetary Science
Fig. 4 | Progress in Earth and Planetary Science

Fig. 4

From: Application of Soil Water Index to landslide prediction in snowy regions: sensitivity analysis in Japan and preliminary results from Tomsk, Russia

Fig. 4

a Original SWI (orange line) calculated by observed hourly precipitation (blue bars) at AMeDAS Sekiyama (Fig. 2c) from October 1, 2005, to September 30, 2006. Yellow dots represent the occurrences of snowmelt-driven landslide disasters. The maximum SWI (143 mm) of the past 10 years (1995–2004) is depicted by the green dashed line. In this figure, snowfall-accumulation-snowmelt processes are not implemented. b Same as a but the hourly precipitation is given as the average of three-hourly accumulated precipitation. In this case, the maximum SWI of the past 10 years is 135 mm. c Scatter diagram between SWI_3hr (b) and SWI_obs (a), with the correlation coefficient being nearly equal to 1

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