Multidisciplinary and Interdisciplinary (M)
Session Sub-category Intersection(IS)
Session ID M-IS15
Title Geophysical particulate gravity current
Short Title Geophysical particulate gravity current
Main Convener Name Hajime Naruse
Affiliation Department of Geology and Mineralogy, Graduate School of Science, Kyoto University
Co-Convener 1 Name Yuichi Sakai
Affiliation Faculty of Agriculture, Utsunomiya University
Co-Convener 2 Name Hiroyuki A. Shimizu
Affiliation Sabo and Landslide Technical Center
Co-Convener 3 Name Takahiro Tanabe
Affiliation National Research Institute for Earth Science and Disaster Resilience
Session Language 
J
Scope 
This session focuses on the integrative understanding of the dynamics of various geophy
sical particulate gravity currents, including (but not limited to) turbidity currents, debris f
lows, snow avalanches, pyroclastic density currents, lava flows, volcanic umbrella clouds,
flood flows, river flows, tsunami inundations, and landslides. Although each of these curr
ents is a different phenomenon, they share a certain degree of similarities in their dyna
mics. In recent years, models of the currents suitable for practical applications have bee
n proposed in individual scientific fields. The discussion beyond the boundaries of scientific fields allows us to integrate the knowledge of each phenomenon and deepen our under
standing of the similarities and differences among various geophysical gravity currents. T
his integrative understanding is essential not only for scientific progress but also for prac
tical applications such as risk assessment of natural disasters. We welcome contributions
related to various geophysical gravity currents from all kinds of approaches, including nu
merical simulations, mathematical analyses, physical experiments, and field observation
s.
Presentation Format Oral and Poster presentation
Invited Authors Fumitoshi Imaizumi (Faculty of Agriculture, Shizuoka University)
Time Presentation No Title Presenter
Oral Presentation May 29 PM2
15:30 - 16:00 MIS15-01 Initiation and runout characteristics of debris flows in Ohya landslide and Mt. Fuji Fumitoshi Imaizumi
16:00 - 16:15 MIS15-02 Grain size characteristics of cyclic steps formed by multiple surge turbidity currents in an experimental flume: a discussion of downstream coarsening Miwa Yokokawa
16:15 - 16:30 MIS15-03 Development of a numerical model for mudflows based on a two-layer model Yuichi Sakai
16:30 - 16:45 MIS15-04 Development of 2-D inverse model for turbidity currents based on deep learning Seiya Fujishima
Presentation No Title Presenter
Poster Presentation May 29 PM3
MIS15-P01 Application of a 2-D two-layer depth-averaged model for large-scale pyroclastic density currents to the Pinatubo 1991 eruption: Effects of uncertainty in source location Hiroyuki A. Shimizu
MIS15-P02 Effects of grain size scale on deposition of debris flow Satsuki Sakakibara
MIS15-P03 Investigation of behavior of debris flow with driftwood by dam-break experiments Yuichi Sakai
MIS15-P04 Estimation of rheological properties of mass movements using convolutional neural network Hajime Naruse
MIS15-P05 Prototype of probabilistic hazard map for snow avalanche reflecting uncertainties of snow cover conditions during winter Takahiro Tanabe