Akihiro Musa

Digital Twin for Tsunami Disaster Resilience - Development of TsunamiCast : Real-time Impact-based Tsunami Forecast Facility

Shunichi Koshimura, Yuichiro Tanioka, Erick Mas, Akihiro Musa et autres

Digital Twin for Tsunami Disaster Resilience - Development of TsunamiCast:Real-time Impact-based Tsunami Forecast FacilityDigital twin is generally defined as a digital representation of physical objects in the real world, stored in cyberspace and used to simulate processes and consequences of target phenomena. …

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Digital Twin for tsunami disaster resilience, incorporating data Assimilation of ocean bottom pressure data

Yuichiro Tanioka, Rinda Nita Ratnasari, Yota Atobe, Takayuki Suzuki et autres

Digital twin is recognized as a digital copy of a physical world stored in a digital space and used to simulate the sequences and consequences of a target phenomenon. By incorporating observed data into the digital twin, a full view of the …

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Development of Plastic Networking for Environmental Transformation Japan for Circular Economy

Akihiro Musa

1．はじめに

Modernizing an Operational Real-Time Tsunami Simulator to Support Diverse Hardware Platforms

Keichi Takahashi, Takashi Abe, Akihiro Musa, Yoshihiko Sato et autres

To issue early warnings and rapidly initiate disaster responses after tsunami damage, various tsunami inundation forecast systems have been deployed worldwide. Japan's Cabinet Office operates a forecast system that utilizes supercomputers to perform tsunami propagation and inundation simulation in real time. Although …

jp (code pays fourni par la source)

Modernizing an Operational Real-time Tsunami Simulator to Support Diverse Hardware Platforms

Keichi Takahashi, Takashi Abe, Akihiro Musa, Yoshihiko Sato et autres

To issue early warnings and rapidly initiate disaster responses after tsunami damage, various tsunami inundation forecast systems have been deployed worldwide. Japan's Cabinet Office operates a forecast system that utilizes supercomputers to perform tsunami propagation and inundation simulation in real time. Although …

File I/O Cache Performance of Supercomputer Fugaku Using an Out-of-Core Direct Numerical Simulation Code of Turbulence

Yuto Hatanaka, Yuki Yamane, Kenta Yamaguchi, Takashi Soga et autres

jp (code pays fourni par la source)

I/O Performance Evaluation of a Memory-Saving DNS Code on SX-Aurora TSUBASA

Mitsuo Yokokawa, Yuki Yamane, Kenta Yamaguchi, Takashi Soga et autres

Direct numerical simulation (DNS) by spectral methods is widely used to reveal turbulence properties because of its high accuracy. DNS with a larger number of grid points than simulations conducted to date, however, requires a large amount of computation time and memory …

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Consideration of a Supercomputing System with Cloud Bursting Functionality from an Operational Perspective

Arata Endo, Shinji Yoshida, Shuichi Gojuki, Hiroaki Kataoka et autres

Cloud bursting functionality provides the administrators of on-premise supercomputing systems with an on-demand way of dynamically integrating the computing resources on the cloud into them when the computing demands from the users dramatically increase. In the Cybermedia Center at Osaka University, we …

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A Real-time Flood Inundation Prediction on SX-Aurora TSUBASA

Yoichi Shimomura, Akihiro Musa, Yoshihiko Sato, Atsuhiko Konja et autres

Due to extreme weather, record-breaking heavy rainfalls frequently cause severe flood damages. Thus, there is a strong demand for predicting flood scales to mitigate damages. In this paper, we propose a real-time flood inundation prediction system on a shared HPC system. Although …

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Rapid and quantitative uncertainty estimation of coseismic slip distribution for large interplate earthquakes using real-time GNSS data and its application to tsunami inundation prediction

Keitaro Ohno, Yusaku Ohta, Ryota Hino, Shunichi Koshimura et autres

Abstract This study proposes a new method for the uncertainty estimation of coseismic slip distribution on the plate interface deduced from real-time global navigation satellite system (GNSS) data and explores its application for tsunami inundation prediction. Jointly developed by the Geospatial Information …

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Rapid and Quantitative Uncertainty Estimation of Coseismic Slip Distribution for Large Interplate Earthquakes Using Real-time GNSS Data and Its Application to Tsunami Inundation Prediction

Keitaro Ohno, Yusaku Ohta, Ryota Hino, Shunichi Koshimura et autres

jp (code pays fourni par la source)

Real-time automatic uncertainty estimation of coseismic single rectangular fault model using GNSS data

Keitaro Ohno, Yusaku Ohta, Satoshi Kawamoto, Satoshi Abe et autres

Abstract Rapid estimation of the coseismic fault model for medium-to-large-sized earthquakes is key for disaster response. To estimate the coseismic fault model for large earthquakes, the Geospatial Information Authority of Japan and Tohoku University have jointly developed a real-time GEONET analysis system …

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