ERUPTION ID:20-0117

BASIC INFORMATION

Eruption onset date Feb. 2.2020
Eruption onset time (LST) 13:46
Eruption column top (m) 2200
Total ashfall amount (kg) 5.32E+05
Total ashfall area (km2) 8.67

SPECIFIC INFORMATION

BASIC INFORMATION .1
BASIC INFORMATION .2

TRM-XMP Radar (MLIT)

Fig. 2-1 Accumulated ash fall distribution (animation).
Fig. 2-2 Ash fall duration time (animation).
Fig. 2-3 Temporal change of total ash fall amount.
Fig. 2-3 Temporal change of total ash fall amount.
Fig. 2-4 Temporal change of total ash fall area.
Fig. 2-4 Temporal change of total ash fall area.

SVO-XMP Radar (DPRI)

Fig. 4-3 RHI images of radar reflectivity factor ZH (animation).
Fig. 4-4 RHI images of Doppler velocity VD(animation).

DISDROMETER (DPRI)

Fig. 6-1 Density plots of the particle size and fall velocity of volcanic ash particles.
Fig. 6-1 Density plots of the particle size and fall velocity of volcanic ash particles.
Fig. 6-2 Gamma fitting curves of observed particle size distributions.
Fig. 6-2 Gamma fitting curves of observed particle size distributions.
Fig. 6-3  Temporal change of gamma PSD parameters and integrated PSD parameters.
Fig. 6-3 Temporal change of gamma PSD parameters and integrated PSD parameters.
Fig. 6-4 Temporal change of ash fall rate and PSD.
Fig. 6-4 Temporal change of ash fall rate and PSD.
Fig. 6-5  Histograms of observed gamma PSD parameters.
Fig. 6-5 Histograms of observed gamma PSD parameters.
Fig. 6-6 Histograms of observed normalized gamma PSD parameters.
Fig. 6-6 Histograms of observed normalized gamma PSD parameters.

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