| Short title | Dynamics of volcanic eruption | 
	
		| Oral presentation Date/Room/Chair
 | May 20 AM2 (11:00 - 12:45) | 106 | Satoshi Okumura 
			/ Ryohei Kawaguchi | 
	
		| May 20 PM1 (14:15 - 16:00) | 106 | Yujiro Suzuki 
			/ Tomofumi Kozono | 
	
		| Poster presentation Date/Room
 | May 20 (Core Time 18:15 - 19:30) | Convention Hall | 
	
		| Contact | Satoshi Okumura | 
	
		| Email | sokumura@m.tohoku.ac.jp | 
	
		| Convener | Satoshi Okumura 
			/ Tomofumi Kozono 
			/ Yujiro Suzuki | 
	
		| Scope | 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. | 
	
		| Notes |  | 
	
		| Time | Presentation No | Title | Author | Presenter | Abstract | 
	
		| Oral Presentation   May 20 AM2 (11:00-12:45) 106                              to the top | 
	
		| 11:00 - 11:15 | SVC50-01 | An analytical formula for the longitudinal resonance frequencies of a fluid-filled crack | Yuta Maeda Hiroyuki Kumagai
 | Yuta Maeda | English | 
	
		| 11:15 - 11:30 | SVC50-02 | Characterization of middle-distance infrasound propagation and its utility for grasping volcanic activity | Mie Ichihara Makiko Iwakuni
 Giorgio Lacanna
 other
 | Mie Ichihara | English | 
	
		| 11:30 - 11:45 | SVC50-03 | Glow luminance change at 1 second before an explosion of Sakurajima volcano | Koki Aizawa Akihiko Yokoo
 Takeshi Tameguri
 other
 | Koki Aizawa | English | 
	
		| 11:45 - 12:00 | SVC50-04 | Magma reservoir?vent system within Miyake-jima volcano revealed by GPS observations | Jun Oikawa Shigeru Nakao
 Takeshi Matsushima
 other
 | Jun Oikawa | English | 
	
		| 12:00 - 12:15 | SVC50-05 | 3-D numerical simulations of eruption clouds: Efficiency of turbulent mixing caused by environmental wind | Yujiro Suzuki Takehiro Koyaguchi
 | Yujiro Suzuki | English | 
	
		| 12:15 - 12:30 | SVC50-06 | Relationship between Stratigraphic Variations of Grain Size Distribution in Fall Deposits and Initial Size Distribution | Yu Iriyama Atsushi Toramaru
 Tetsuo Yamamoto
 | Yu Iriyama | English | 
	
		| 12:30 - 12:45 | SVC50-07 | Friction properties controlling deposit shape of pyroclastic flows: insights from eruptions of Soufriere Hills volcano | Fukashi Maeno SPARKS, R. Stephen J.
 HOGG, Andrew J.
 other
 | Fukashi Maeno | English | 
	
		| Oral Presentation   May 20 PM1 (14:15-16:00) 106                              to the top | 
	
		| 14:15 - 14:30 | SVC50-08 | Analysis of eruption sequences based on a model of magma plumbing system: Effects of variable magma temperatures | Yoshiaki Ida Jun Oikawa
 | Yoshiaki Ida | English | 
	
		| 14:30 - 14:45 | SVC50-09 | Modeling of gas bubbles rise in low viscous magma and volcanic deformation | Ryohei Kawaguchi Takeshi Nishimura
 | Ryohei Kawaguchi | English | 
	
		| 14:45 - 15:03 | Invited SVC50-10
 | Perspective on textural study of volcanic products | Atsushi Toramaru | Atsushi Toramaru | English | 
	
		| 15:03 - 15:18 | SVC50-11 | Magma mixing/mingling and viscous fingering: Analog model experiment and geometry of interfaces | Nodoka Takada Eiichi Sato
 Kazuhito Yamasaki
 | Nodoka Takada | English | 
	
		| 15:18 - 15:36 | Invited SVC50-12
 | Basaltic magmas at high pressures and the origin of the lithosphere-asthenosphere boundary | Tatsuya Sakamaki SUZUKI, Akio
 OHTANI, Eiji
 other
 | Tatsuya Sakamaki | English | 
	
		| 15:36 - 15:51 | 3-min talk in an oral session@(SVC50-P02/SVC50-P04/SVC50-P05/SVC50-P06/SVC50-P08) | 
	
		| 15:51 - 16:00 | 3-min talk in an oral session@(SVC50-P10/SVC50-P12) | 
	
		| Presentation No | Title | Author | Presenter | Abstract | 
	
		| Poster Presentation   May 20  Core Time (18:15-19:30) Convention Hall                    to the top | 
	
		| SVC50-P01 | Effects of vertical diffusivity of particles on distribution of deposits calculated by the tephra-tracking model PUFF | Koji Kiyosugi Takehiro Koyaguchi
 Yujiro Suzuki
 | Koji Kiyosugi | English | 
	
		| SVC50-P02 | Immediate estimating plume height of volcanic eruption by not using visual observation | Akimichi Takagi Toshiki Shimbori
 Tetsuya Yamamoto
 other
 | Akimichi Takagi | English | 
	
		| SVC50-P03 | Numerical study on internal structure and turbulent mixing of overpressured jets | Satoshi Inagawa Takehiro Koyaguchi
 Yujiro Suzuki
 | Satoshi Inagawa | English | 
	
		| SVC50-P04 | Frequency analysis of noise around supersonic jet | Kazuaki Hatanaka SHIBATA, Naoto
 SAITO, Tsutomu
 | Kazuaki Hatanaka | English | 
	
		| SVC50-P05 | Transition in eruption style during the 2011 eruption of Shinmoe-dake: implications from a steady conduit flow model | Ryo Tanaka Takeshi Hashimoto
 | Ryo Tanaka | English | 
	
		| SVC50-P06 | Conduit flow dynamics during the 2011 sub-Plinian eruptions of Shinmoe-dake volcano | Tomofumi Kozono Hideki Ueda
 Masashi NAGAI
 | Tomofumi Kozono | English | 
	
		| SVC50-P07 | Characteristics of precursory volcanic earthquakes to eruptions at the Showa crater of Sakurajima volcano | Takeshi Tameguri Masato Iguchi
 | Takeshi Tameguri | English | 
	
		| SVC50-P08 | Evidence of permeable gas transport in magma from obsidian pyroclasts | Satoshi Okumura | Satoshi Okumura | English | 
	
		| SVC50-P09 | Magma permeability and magma-slurry mingling during the 1963-67 eruption | C Ian Schipper BURGISSER, Alain
 WHITE, James D.L.
 | C Ian Schipper | English | 
	
		| SVC50-P10 | Water control on variation in eruptive style during the first eruptive episode of the Barombi Mbo Maar, Cameroon | Boris Chako Tchamabe Takeshi OHBA
 ISSA
 other
 | Boris Chako Tchamabe | English | 
	
		| SVC50-P11 | Petrological comparison between the earliest product of Aso-4 pyroclastic flow and its precursory lava extrusion, in cen | Hideto Yamasaki Toshiaki Hasenaka
 Yasushi Mori
 | Hideto Yamasaki | English | 
	
		| SVC50-P12 | Mechanism of delayed fragmentation of vesicular magma by decompression | Mitsuaki Tsugo Tsukasa Shida
 Masaharu Kameda
 other
 | Mitsuaki Tsugo | English | 
	
		| SVC50-P13 | Experimental determinations of water solubility in the Shinmoe-dake 2011 dacite melt to 150 MPa | Shigeru Yamashita Nadezda Chertkova
 | Shigeru Yamashita | English |