The 979th DANWAKAI(program)

Announcement of the 979th DANWAKAI


(Danwakai: ERI Holds “Danwakai”, a monthly meeting where its members present
their most recent academic and technical achievements, on a
Friday of every month. Danwakai is open to the public.)

Date: Friday, 22 February 13:30-
Place: ERI Bldg.2, 5th floor, Conference room1


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1. 13:30-13:45
TITLE: Improvement of accuracy of the spectral element method for elastic wave
computation using modified numerical integration operators
AUTHOR: * Kei HASEGAWA, Nobuaki FUJI(IPGP) and Kensuke KONISHI (Academia Sinica)
SUMMARY: We present new integration operators which minimize the numerical error
of the spectral element method for computation of the elastic wave equation.

2. 13:45-14:00
TITLE: Information extraction from mineral zoning by data assimilation
AUTHOR: * Tatsu KUWATANI (JAMSTEC / JST Presto), Hiromichi NAGAO
and Shin-ichi ITO

3. 14:00-14:15
TITLE: Time-lapse monitoring of seismic velocity associated with the 2011
Shinmoedake eruption using seismic interferometry
AUTHOR: * Yuta MIZUTANI and Kiwamu NISHIDA

4. 14:15-14:30
TITLE: A Nonlinear Time Series Analysis of the Harmonic Tremor Observed at
Shinmoedake Volcano, Japan
AUTHOR: * Yuki NATSUME, Mie ICHIHARA and Minoru TAKEO

5. 14:30-14:45
TITLE: Sawtooth wave-like pressure changes in a syrup eruption experiment:
implications for periodic and nonperiodic volcanic oscillations
AUTHOR: * Yo KANNO and Mie ICHIHARA
SUMMARY: We try identifying the features common to both our experimental system
and natural volcanic systems and suggest possible effects for disturbing eruption periodicity.

*Speaker