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Fig. 4 | Earth, Planets and Space

Fig. 4

From: Quantitative relationship between plume emission and multiple deflations after the 2014 phreatic eruption at Ontake volcano, Japan

Fig. 4

Time series of the discharge mass (Qout) and the deflation volume (ΔVs). Time plots correspond to the period after 28 September 2014. Plots of ΔVs are based on the estimation for the two independent orbits of ALOS-2 satellite (Narita and Murakami 2018). Dotted lines show best-fit functions of f1(t) resulted from curve fitting, whereas dashed lines show best-fit functions of f2(t) (see text for the detail). Note that for ΔVs, f1(t) and f2(t) fitting results are almost identical, which means no involvement of linear term. Relaxation time τ in exponential terms is indicated at best-fit time functions of each time series data

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