Conference presentations (2025)
Here we provide records of academic conferences attended by students from the Arikawa Laboratory.
Participation in the 72nd Coastal Engineering Lecture Meeting
November 26–28, 2025
Thirteen students from our laboratory participated in the 72nd Coastal Engineering Lecture Meeting, held in Takamatsu City, Kagawa Prefecture, where they presented their recent research findings.
・D3 Tomoki Shirai
① Feasibility of Tsunami Detection Based on Wave Run-up Monitoring Using CCTV Cameras
Authors: Tomoki Shirai, Taro Arikawa
② Feasibility of long-term shoreline monitoring using satellite imagery with CoastSat
Authors: Tomoki Shirai, Masayuki Banno, Taro Arikawa
This year’s conference featured many studies on coastal monitoring using visual cameras, LiDAR, and infrared cameras, highlighting the significant progress and increasing maturity of remote sensing approaches for coastal observation.
In particular, the second study was honored with the Coastal Engineering Paper Award from the Japan Society of Civil Engineers. This award recognizes not only the outcomes of this study but also the long-term efforts of researchers who have continuously conducted field observations for over a decade, the open-source development of satellite image analysis tools, and their wide applicability.
We would like to take this opportunity to express our sincere gratitude to Professor Arikawa, as well as to colleagues at PARI (Port and Airport Research Institute) and Tohoku University, for their invaluable guidance and support.
Moving forward, we will continue to advance and expand original technologies such as those presented in this study, deepen our understanding of coastal phenomena, and strive to contribute further to both this research field and society as a whole.
・D3 Yota Enomoto
Development of coupled fluid–soil analysis method using numerical wave tank and soil analysys based on MPM
Authors: Yota Enomoto, Naoto Kihara, Chiaki Tsurudome, Taro Arikawa
・D3 Tatsuhiko Tokuta
Analysis of Tsunami Generation Near Sofugan Volcano, October 2023
Authors: Tatsuhiko Tokuta, Kentaro Imai, Taro Arikawa
This presentation focused on investigating the triggering factors of the tsunami that occurred around Nishinoshima Island during the October 2023 eruption.
Although the presenter is a doctoral student, the discussion revealed areas for improvement in responding clearly to questions and accurately capturing the intent of the audience. These reflections will be addressed and refined in future presentations.
・D1 Rena Naito
A Study on the Effectiveness of VR-Based Tsunami Evacuation Training
Authors: Rena Naito, Taro Arikawa
This study examined how tsunami evacuation training conducted in a virtual reality (VR) environment influences the selection of evacuation sites and routes.
The presentation received numerous questions and provided a valuable learning opportunity. Future work will continue to advance research on evacuation support using VR technologies.
presentations at academic conferences in English in the future, so I would like to make use of this valuable experience.
・Tan Jiahao
Automatic Allocation Algorithm for Tsunami Evacuation Towers Based on Scenario Evaluation in Ambon
Authors: Tan Jiahao, Taro Arikawa
In this presentation, we proposed a method for determining the placement of tsunami evacuation towers using clustering algorithms.
Many participants asked about the roles of the K-Medoids and DBSCAN algorithms, and we found it challenging to clearly explain the analysis process.
Through this experience, we realized that it is important not only to present research results but also to ensure that the audience can fully understand them.
As communication skills are essential for future research activities, we plan to improve the overall structure of our presentations and the way we explain slides, and to make better use of these improvements in our ongoing and future research.
・M2 Tatsuya Aikawa
The impact of evacuation prompts during disasters and the strengthening of community networks on the success rate of tsunami evacuations.
Authors: Tatsuya Aikawa, Taro Arikawa
This study quantitatively evaluated the effectiveness of evacuation prompting by nearby residents during tsunami evacuation, using evacuation simulations for communities affected by the 2024 Noto Peninsula Earthquake.
While the presentation and responses highlighted areas for improvement, the feedback received was highly constructive. These insights will be incorporated into future journal submissions.
・M2 Tomoya Kurihara
Amplification Factors in Distant Regions of the Source Area of the 2024 Noto Peninsula Earthquake Tsunami
Authors: Tomoya Kurihara, Kentaro Imai, Tetsuo No, Taro Arikawa
This research analyzed tsunami wave amplification observed over wide areas of the Sea of Japan following the 2024 Noto Peninsula Earthquake. Numerical simulations revealed that secondary and tertiary waves, influenced by reflected waves from offshore and coastal structures, likely contributed to the observed amplification.
Future studies will quantitatively evaluate the relative contributions of scattering and reflection effects in regions beyond the Noto Peninsula.
・M2 Tatsuya Tsuduki
Assessment of Inundation Simulation Accuracy Considering Buildings During the 2024 Noto Peninsula Earthquake Tsunam
Authors: Tatsuya Tsuduki, Tomoki Shirai, Taro Arikawa
This study examined the effects of incorporating buildings into tsunami inundation simulations and evaluated the influence of embankments through comparison with field observations.
The presentation highlighted both achievements and areas requiring improvement, and the feedback received will be utilized to enhance the quality of the upcoming master’s thesis.
・M1 Fuki Ogawa
Wave Forecast Accuracy up to One Week Ahead Using AI-Based Weather Predictions
Authors: Fuki Ogawa, Tomoki Shirai, Tatsumi Harada, Yurie Itagaki, Masashi Tanaka, Taro Arikawa, Tomoya Shibayama
This presentation evaluated wave prediction accuracy using the AI-based weather forecasting model Pangu-Weather, which has attracted significant attention in recent years.
While the presenter gained valuable feedback, the experience also highlighted the importance of clear communication. Future research and presentations will focus on improving both technical rigor and presentation skills.
・M1 Tatsumi Harada
Accuracy and Computation Time of Real-Time Typhoon and Storm Surge Forecasting in Tokyo Bay
Authors: Tatsumi Harada, Tomoki Shirai, Fuki Ogawa, Yurie Itagaki, Masashi Tanaka, Taro Arikawa, Tomoya Shibayama
This study evaluated computational efficiency in typhoon forecasting using the ES4 vector-type supercomputer and optimized WRF weather models, as well as the accuracy of storm surge predictions using the STOC simulator.
The presentation underscored the importance of delivering research results clearly and understandably, which will be emphasized in future presentations.
・B4 Yuki Kasuya
Experimental Investigation of Wind-Blown Sand Transport under Wet Sand Conditions
Authors: Taro Arikawa, Soma Kakizawa, Akira Katano, Yuki kasuya, Kosuke Nobusawa, Yota Enomoto, Ryosuke Sakai
Wind tunnel experiments were conducted to compare sand transport characteristics under dry and wet conditions using a simulated coastal topography.
As this was the presenter’s first academic conference, it provided a valuable learning experience. The student plans to focus on thesis preparation and ICCE submissions in the final year.
・B4 Fumina Matsuno
Evaluation of the Accuracy in Reproducing River Water Level Fluctuations During Typhoon
Authors: Taro Arikawa, Riku Takakura, Tomokii Shirai, Fumina Matsuno
In this study, we evaluated the effects of differences in analytical conditions on the accuracy of river water level reproduction during typhoon events through a reproduction simulation of Typhoon No. 21 in 2017.
As this was the presenter’s first academic presentation, there were many aspects that did not proceed as expected. However, the lessons learned from this experience will be applied to future presentations, including the undergraduate thesis presentation.
Official website of the 72nd Coastal Engineering Lecture Meeting:https://coastal.jp/lecture/coastalengineeringlecture/lecture72
・B4 Koki Kojima
Stability of gabions against waves as scour protection at the base of a monopile offshore wind turbine
Authors: Yota Enomoto, Koki Kojima, Masao Kikuchi, Takeshi Katayama, Taro Arikawa
This study evaluated the stability of stone cages used for scour protection of monopile offshore wind turbines using Hudson’s formula, comparing their performance with conventional sandbags.
The insights gained from this presentation will be applied to further research and future conference submissions.
I presented at the 10th edition of the Coastal Dynamics Conference and won the Best Student Paper Award.
May 7, 2025
At the 10th edition of the Coastal Dynamics Conference, Yota Enomoto (3rd year doctoral student) and Hinano Ohara (2nd year master's student) gave presentations. Hinano Ohara also won the Best Student Paper Award.
D3 Yota Enomoto (Oral Presentation)
In this study, a coupled fluid–soil numerical analysis model, which has been developed and refined through previous research, was applied to propose a new numerical method for seabed instability problems.As many conference participants specialize in research on fluid–sediment interactions such as rip currents and sediment transport, the research topics were closely aligned, leading to active and fruitful discussions.The presenter received valuable feedback and new ideas during the discussions and plans to further implement advanced analytical functions into the model in future work.M2 Yuna
Hanano Ohara (Oral Presentation)
This presentation focused on three-dimensional numerical simulations of soil movement under the presence of mangrove roots.As this was the presenter’s first international conference oral presentation, several challenges were identified, including speaking pace and responding effectively during the question-and-answer session.These reflections will be addressed in future presentations.Receiving the Best Student Paper Award served as strong motivation to further engage with research and continue academic development.
Chuo University official website
https://www.chuo-u.ac.jp/academics/faculties/science/departments/civil_env/news/2025/04/79879/
CoastalDynamics25 official website