Extended Data Fig. 5: Changes over time in the regional average of the absolute changes in the magnitude of the 2-year return interval discharges in response to tropical volcanic eruptions.
From: Global response of floods to tropical explosive volcanic eruptions
Changes in the discharge magnitude due to the eruptions are calculated by subtracting the ensemble median of 30 non-eruption simulations from that of 30 eruption simulations. The regional average values are then obtained by taking the median across the streamgauges stratified by tropical (magenta line), arid (orange line), temperate (green line), and cold (light blue line) regions. The lines above (below) zero show the results for streamgauges experiencing increasing (decreasing) discharge due to eruptions. The vertical red line indicates the season in which the eruption occurred. The shaded areas separated by different colors and vertical black lines represent each year, from the first (YR1) to the fourth year (YR4) after the eruption. Panels show results for Agung (Indonesia), Santa Maria (Guatemala), and Pinatubo (Philippines) eruptions.
