Basic Information

Email Address

• Email Address

  takishita.kosei.2nkyoto-u.ac.jp

Academic Degree

• 23 Mar. 2020

  京都大学修士（理学）
• 24 Mar. 2023

  京都大学博士（理学）

Academic Resume (Undergraduate School/Majors)

• 京都大学, 理学部理学科, 卒業

Research History

• From Apr. 2026, To Present

  Kyoto University, Disaster Prevention Research Institute Sakurajima Volcano Research Center, Assistant Professor
• From May 2023, To Mar. 2026

  防災科学技術研究所, 火山防災研究部門, 契約研究員
• From Apr. 2023, To Apr. 2023

  京都大学防災研究所, 日本学術振興会特別研究員（PD）
• From Apr. 2022, To Mar. 2023

  京都大学防災研究所, 日本学術振興会特別研究員（DC2）

ID,URL

• ORCID ID

  0000-0002-2108-5125

• J-Global ID

  202301015600063060

• Researcher number

  70988815

researchmap URL

• https://researchmap.jp/Kosei-Takishita

Research

Papers

• テフラ輸送研究この10年—小規模噴火へのまなざし—

  恒星 瀧下; 雅之 真木

  火山, 31 Mar. 2026

  
• Tephra segregation profiles based on disdrometer observations and tephra dispersal modeling: Vulcanian eruptions of Sakurajima volcano, Japan

  Kosei Takishita; Alexandros-Panagiotis Poulidis; Masato Iguchi

  Earth, Planets and Space, 15 Feb. 2024, Peer-reviewed, Lead author, Corresponding author

  
• Continuously Operable Simulator and Forecasting the Deposition of Volcanic Ash from Prolonged Eruptions at Sakurajima Volcano, Japan

  Masato Iguchi; Haruhisa Nakamichi; Kosei Takishita; Alexandros P. Poulidis; Disaster Prevention Research Institute, Kyoto University 1722-19 Sakurajima-Yokoyama-cho, Kagoshima, Kagoshima 891-1419, Japan; Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University, Kyoto, Japan; Institute of Environmental Physics, University of Bremen, Bremen, Germany

  Journal of Disaster Research, 01 Aug. 2022

  Access this paper :

  
• In-situ measurement of tephra deposit load based on a disdrometer network at Sakurajima volcano, Japan

  Kosei Takishita; Alex; ros P. Poulidis; Masato Iguchi

  Journal of Volcanology and Geothermal Research, Jan. 2022, Peer-reviewed, Lead author, Corresponding author

  Access this paper :

  
• Tephra4D: A Python-Based Model for High-Resolution Tephra Transport and Deposition Simulations—Applications at Sakurajima Volcano, Japan

  Kosei Takishita; Alex; ros P. Poulidis; Masato Iguchi

  Atmosphere, 04 Mar. 2021, Peer-reviewed, Lead author, Corresponding author

  

Misc.

• Automated ashfall monitoring of 2025 Shinmoe-dake volcano eruption

  瀧下恒星; 森田裕一; 小澤拓; 棚田俊收; 長井雅史; 吉澤史尚; 中道治久; 味喜大介; 竹中悠亮; 嶋野岳人

  日本火山学会講演予稿集, 2025

  
• Method to evaluate the effect of volcanic plume on wireless communication of rocket

  大和田陽一; 川邊泉; 砂見幸之; 福添森康; 小池一稀; 井上文太; 宮川陸大; 白井美琴; 長浜宗治; 中道治久; 井口正人; 瀧下恒星; 片山勝之

  日本火山学会講演予稿集, 2024

  
• Shape parameter measurements of standard tephra samples via DIA in each particle

  瀧下恒星; 三輪学央; 長井雅史; 中田節也; 鈴木毅彦

  日本火山学会講演予稿集, 2023

  
• Forecasting of volcanic ash hazard using integrated monitoring and simulation

  井口正人; 中道治久; 為栗健; 瀧下恒星; POULIDIS Alexandros; 竹見哲也; 山路昭彦; 丸山敬; 真木雅之; 石井杏佳; 田中博; 太田雄策; 清水厚

  日本地球惑星科学連合大会予稿集(Web), 2023

  
• Design study of continuously operable simulator and systematization for forecasting deposition of volcanic ash from prolonged eruptions at Sakurajima

  井口正人; 中道治久; 瀧下恒星; POULIDIS A.P.

  日本火山学会講演予稿集, 2022

  
• Theories on drag coefficient of non-spherical particles and their application to 2DVD ashfall observation

  SATO Eiichi; TAKISHITA Kosei; IGUCHI Masato

  PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, 2021

  
• Preliminary Analysis of ash fall observation using 2-Dimensional Video Disdrometer

  SATO Eiichi; TAKISHITA Kosei; IGUCHI Masato

  PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, 2020

  

Presentations

• Ash fingerを考慮した⽕⼭灰輸送分散シミュレーション

  瀧下恒星; 丸石崇史; 鈴木雄治郎

  地震研究所共同利⽤研究集会「⽕⼭現象のダイナミクス・素過程研究」, 12 Mar. 2025

  
• Monitoring of the Eruptive Mass from Continuous Tephra Emissions at Sakurajima Volcano Using Disdrometer Tephra-fall Observations

  Kosei Takishita; Tomofumi Kozono; Takahiro Miwa; Masato Iguchi

  AGU24 Annual Meeting, 10 Dec. 2024

  
• Mechanism of seismic tremors during continuous tephra emissions of Sakurajima Volcano inferred from tephra-fall observations

  Kosei Takishita; Tomofumi Kozono; Takahiro Miwa; Masato Iguchi

  日本火山学会2024年度秋季大会, 16 Oct. 2024

  
• The monitoring of continuous volcanic ash emissions in Sakurajima volcano using disdrometer ashfall observation

  Kosei Takishita; Tomohumi Kozono; Takahiro Miwa; Masato Iguchi

  Japan Geoscience Union Meeting 2024, 31 May 2024

  
• 桜島火山におけるディスドロメータ観測網の配置と降灰検知確率の関係

  瀧下恒星; 小園誠史; 三輪学央; 井口正人

  令和5年度京都大学防災研究所研究発表講演会, 22 Feb. 2024

  
• Shape parameter measurements of tephra samples from grayscale images of individual particles using Dynamic Image Analysis

  Kosei Takishita; Takahiro Miwa; Masashi Nagai; Setsuya Nakada; Takehiko Suzuki

  Cities on Volcanoes 12, 12 Feb. 2024

  
• ディスドロメータ観測に基づく火山灰噴出量推定

  瀧下恒星; 小園誠史; 三輪学央; 井口正人

  日本火山学会2023年度秋季大会, 18 Oct. 2023

  
• 粒子毎の動的画像解析によるテフラ標準試料の形状の計測

  瀧下恒星; 三輪学央; 長井雅史; 中田節也; 鈴木毅彦

  日本火山学会2023年度秋季大会, 18 Oct. 2023

  
• 降下テフラ重量観測から得られた桜島ブルカノ式噴火のテフラ分離プロファイル

  瀧下恒星; 井口正人; A. P. Poulidis

  日本地球惑星科学連合2023年大会, 23 May 2023

  
• Tephra segregation profiles from Vulcanian eruptions on Sakurajima volcano, Japan, based on the diameter and settling velocity observations of falling tephra

  Kosei Takishita; Masato Iguchi; Alexandros P. Poulidis

  83. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, 09 Mar. 2023

  
• Tephra segregation profiles from Vulcanian eruptions on Sakurajima volcano, Japan, based on settling velocity observations

  Kosei Takishita; Masato Iguchi; Alexandros P. Poulidis; Tadaomi Sonoda

  Cities on Volcanoes 11, 14 Jun. 2022

  
• 桜島ブルカノ式噴火の噴煙からのテフラ粒子の時空間分離特性

  瀧下恒星; 井口正人

  日本地球惑星科学連合2022年大会, 26 May 2022

  
• 桜島での落下速度観測に基づくブルカノ式噴火の噴煙からのテフラ粒子の分離重量分布の 鉛直プロファイル

  瀧下恒星; 井口正人

  令和3年度京都大学防災研究所研究発表講演会, 21 Feb. 2022

  

Awards

• 24 Feb. 2021

  令和2年度京都大学防災研究所講演会優秀発表賞
• 17 Feb. 2020

  修士論文賞（京都大学大学院理学研究科地球惑星科学専攻）
• 21 Feb. 2020

  令和元年度京都大学防災研究所講演会優秀発表賞