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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Tephra segregation profiles based on disdrometer observations and tephra dispersal modeling: Vulcanian eruptions of Sakurajima volcano, Japan

Fig. 3

a Annual number of explosions (Nex) from October 1955 to December 2021 and annual ejecta (Ejan) from 1979 to 2021. M and S above the plot indicate the active periods of the Minami−Dake and Showa craters, respectively. b Spatial distribution of cumulative tephra load (Lcum) at stations within 20 km of Minami−Dake crater (red triangle) from 1991 to 2020. c Frequency distribution of wind direction and wind velocity wh (m s−1) at an isobaric surface of 850 hPa (about 1.5 km above sea level) from 1991 to 2020

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