[S-VC50_2AM1] Dynamics of volcanic eruptions and igneous activities

Fri. May 2, 2014 9:00 AM - 10:45 AM 315 (3F)

Convener:*Yujiro Suzuki(Earthquake Research Institute, The University of Tokyo), Satoshi Okumura(Division of Earth and Planetary Materials Science, Department of Earth Science, Graduate School of Science, Tohoku University), Tomofumi Kozono(Department of Geophysics, Graduate School of Science, Tohoku University), Chair:Satoshi Okumura(Division of Earth and Planetary Materials Science, Department of Earth Science, Graduate School of Science, Tohoku University), Koji Kiyosugi(Earthquake Research Institute, University of Tokyo)

This session discusses the dynamics of volcanic and igneous activities such as magma accumulation, magma ascent in volcanic conduits, and dispersion of volcanic products. In order to understand such multi-scale phenomena, the researches of microscopic and macroscopic scales and the techniques that combine the different scales are required. We aim to discuss the latest approaches as well as the recent observations, laboratory experiments and analyses numerical simulations from the viewpoint of cross-cutting research.

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9:00 AM - 9:15 AM

[SVC50-01] The mathematical link between stratigraphic grain size variation of fall deposits and its time variation at the source

*Yu IRIYAMA¹, Atsushi TORAMARU², Tetsuo YAMAMOTO³ (1.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 2.Department of Earth and Planetary Sciences, Faculty of Sciences, Kyushu University, 3.Center for Planetary Science, Kobe University)

9:15 AM - 9:30 AM

[SVC50-02] Color and grainsize of ash samples collected continuously at Sakurajima volcano, Japan

*Taketo SHIMANO¹, Takeshi NISHIMURA², Masato IGUCHI³, Daisuke MIKI³ (1.Graduate school of Enviroment and Disaster Research, Tokoha University, 2.Department of Geophysics, Graduate School of Science, Tohoku University, 3.Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto University)

9:30 AM - 9:45 AM

[SVC50-03] Numerical Simulation of Volcanic Ash Transport for the Eruptions at Mt. Shinmoe-dake during 26-27 January 2011

*Akihiro HASHIMOTO¹, Yujiro SUZUKI², Toshiki SHIMBORI¹, Akimichi TAKAGI¹ (1.Meteorological Research Institute, Japan Meteorological Agency, 2.Earthquake Research Institute, The University of Tokyo)

9:45 AM - 10:00 AM

[SVC50-04] Weather Radar Investigation of Volcanic Smoke for Disaster-Prevention

*Masayuki MAKI¹, Masato IGUCHI², Eisuke FUJITA³, Takeshi MAESAKA³, Yukari SHUSSE⁴, Tomofumi KOZONO⁴, Tatsuya MOMOTANI⁵, Akihiko YAMAJI⁵ (1.Kagoshima University, 2.DPRI, Kyoto Univercity., 3.NIED, 4.Tohoku University, 5.Japan Weather Association)

10:00 AM - 10:15 AM

[SVC50-05] Eruption types determined by the mass flux and volatile component content of ascending magma flow

*Yoshiaki IDA¹, Jun OIKAWA² (1.Advance Soft Co., 2.Earthquake Res. Inst., Univ. of Tokyo)

10:15 AM - 10:30 AM

[SVC50-06] Magma eruption rates, eruption styles, and preeruptive magma viscosity

*Akihiko TOMIYA¹, Takehiro KOYAGUCHI², Tomofumi KOZONO³, Shingo TAKEUCHI⁴ (1.Geological Survey of Japan, AIST, 2.Earthquake Research Institute, University of Tokyo, 3.Department of Geophysics, Graduate School of Science, Tohoku University, 4.Civil Engineering Research Laboratory, Central Research Institute of Electric Power Industry)

10:30 AM - 10:45 AM

[SVC50-07] Conditions for transition from lava dome to explosive eruption

*Tomofumi KOZONO¹, Takehiro KOYAGUCHI² (1.Department of Geophysics, Graduate School of Science, Tohoku University, 2.Earthquake Research Institute, University of Tokyo)