Updated on 2026/04/01
Graduate School of Science Department of Geosciences
Associate Professor 2024.04 - Now
School of Science Department of Geosciences
Associate Professor 2024.04 - Now
博士（環境学） （ The University of Tokyo ）
Natural Science / Human geosciences / 自然地理学
Natural Science / Human geosciences
自然地理学、第四紀地層学、人間活動、地圏環境
日本応用地質学会
Domestic
日本地理学会
Domestic
日本堆積学会
Domestic
日本地球惑星科学連合
Domestic
日本地形学連合
Domestic
日本堆積学会 行事委員
2026.01 - Now
日本堆積学会 役員選挙管理委員会
2025.08 - 2025.12
委員長
日本応用地質学会 ARC16開催実行特別委員
2025.02 - Now
科学技術・学術政策研究所 科学技術専門家ネットワーク・ 専門調査員
2024.04 - Now
日本地球惑星科学連合 大会学協会プログラム委員
2024 - Now
日本地理学会 交流専門委員
2020.04 - Now
The GIS-IDEAS Journal Editorial Board
東京大学 客員連携研究員
2025.01 - Now
Osaka Metropolitan University Graduate School of Science Department of Geosciences
2024.04 - Now
The University of Tokyo Graduate School of Frontier Sciences Department of Environment Systems
2022.09 - 2024.03
Rikkyo University College of Arts
2019.09 - Now
Tsai C.S.
Journal of Hydrology 663 2025.12（ ISSN:00221694 ）
The effects of land subsidence and its mitigating measures on shallow groundwater salinization in the low-lying coastal plain of East Japan Reviewed International coauthorship
Tsai C.S., Ito Y., Liu, J., and Tokunaga, T.
Environmental Research Communications 6 ( 7 ) 2024.07
Employment of hydraulic model and social media data for flood hazard assessment in an urban city. Reviewed International coauthorship
Ouyang, M., Kotsuki, S, Ito, Y., Tokunaga, T
44 2022
Quantifying the inundation impacts of earthquake-induced surface elevation change by hydrological and hydraulic modeling. Reviewed International coauthorship
11 2021
Effects of geomorphological and geohydrological features on flood hazard in a coastal basin. Reviewed International coauthorship
Ouyang, M., Ito, Y., Tokunaga, T
Natural Hazards 107 2021
Late Quaternary depositional sequences and landforms in relation to sea-level changes in the Osaka intra-arc basin, Japan Reviewed
Ito, Y., Oguchi, T., and Masuda, F
2018
Spatial and temporal changes in flood hazard potential at coastal lowland area: a case study in the Kujukuri Plain, Japan. Reviewed International coauthorship
Chen, H., Ito, Y., Sawamukai, M., Su, T., and Tokunaga, T.
Natural Hazards 2016
地盤情報データベースを用いた淀川低地における埋没谷と埋没段丘の分布 Reviewed
伊藤有加, 小口高，増田富士雄，坂本隆彦
堆積学研究 74 2015
京都盆地南部巨椋池の湖沼堆積物.
増田富士雄・伊藤有加・石田志朗（ Role： Joint author）
「ダイナミック地層学－大阪平野・神戸六甲山麓・京都盆地の沖積層の解析－」 2019
沖積層基底にみられる海退期の段丘地形と最終氷期の河川
増田富士雄・伊藤有加・坂本隆彦（ Role： Joint author）
「ダイナミック地層学－大阪平野・神戸六甲山麓・京都盆地の沖積層の解析－」 2019
Changes of buried river channels and buried archaeological sites in a tectonic subsidence area: the case of the Echigo Plain, Niigata, Japan. International conference
Ito Y.
11th IAG International Conference on Geomorphology 2026 2026.02
自然環境の変化と人とのかかわり
伊藤有加
2025.11 NPO法人大阪府高齢者大学校
京都盆地南部、巨椋池の古地理変遷と人間活動
伊藤有加
遺跡と地層の勉強会 2025.06 大阪市立自然史博物館
地盤情報データベースを用いた大阪平野における層序学的解析に基づいた古地形の復元 Invited
伊藤有加
KG-NET・関西圏地盤研究会全体委員会 2025.06 一般財団法人 ＧＲＩ財団
Impacts of flood mitigation facilities on groundwater salinization in the low-lying coastal estuary of Kujukuri plain, Japan. International conference
Tsai C., Liu J., Ito Y., and Tokunaga T.
The Salt Water Intrusion Meeting (SWIM 2025) 2025.06
Land subsidence vs. urban development: Which process impacts more on floods? Anexample from Kujukuri Plain, Japan. Invited International conference
Tokunaga T., Ouyang M, Ito Y., Kotsuki S.
Taiwan Geoscience Assembly (TGA) 2025 2025.06
Topographic changes based on LiDAR data during 2008-2022：A case study of the South Kujukuri Plain, Chiba, Japan. Invited International conference
Ito Y, Tsai CS, Tokunaga T.
2025.05
地層中に残された記録から読み解く過去の地表環境と人間活動
伊藤有加
大阪公立大学公大授業 2025.04 大阪公立大学
Understanding surface and subsurface flow dynamics in a coastal subsided region. International coauthorship International conference
Tsai C., Liu J., Ito Y., and Tokunaga T.
EGU 2025.04
Assessing the effects of land subsidence on groundwater salinization in estuarine region of eastern Japan International conference
Tsai, C., Ito,Y., Liu, J., and Tokunaga, T.
2024.12
Utilizing the Open Geological Information Database
Ito Y.
2024.11 Osaka Metropolitan University
鳥取県米子市淀江地区の地下水流動系に関する検討～転作田地域の窒素負荷の影響評価に向けて～．
井上大悟，伊藤有加，徳永朋祥
2024.09
Investigation of various salinity levels of the tidal river and its interaction with groundwater dynamics in the subsiding coastal plain, East Japan. International conference
Tsai, C., Ito,Y., Liu, J., and Tokunaga, T.
2024.09
The impact of land subsidence and mitigating measures on near-surface groundwater salinities at the south bank of the Nabaki River, Japan International conference
Tsai CS, Liu J., Ito Y, Tokunaga T
European Geosciences Union General Assembly 2023 2023.12
Investigation of shallow groundwater salinization by upstream migration of sea-water along a tidal river, the coastal subsided region of Chiba prefecture, Japan. International conference
Tsai CS, Ito Y, Liu J., Tokunaga T
AGU fall meeting 2023 2023.12
Attempt to Estimate Long-term Vertical Land Surface Movement Using Archaeological Information in Actively Subsiding Sedimentary Basin, Niigata, Japan International conference
Ito Y., Shimada, S., Tokunaga T
he 20th Annual Meeting of the Asia Oceania Geosciences Society 2023.07
Introduce social media data to hydraulic model for flood hazard simulation in Mobara city, Japan International conference
Ouyang M., Kotsuki S., Ito Y, Tokunaga T
JpGU-AGU Joint Meeting 2023 2023.05
The effects of land subsidence on shallow groundwater salinities at the lower reach of the tidal river in the low-lying coastal plain International conference
Tsai CS, Ito Y, Tokunaga T
AGU fall meeting 2022 2022.12
Reconstruction of Lacustrine Delta and Channel of Fukushimagata Lagoon in the Niigata Plain, Japan International conference
Ito Y
AGU fall meeting 2022, 2022.12
鳥取県米子市、淀江平野における完新世堆積物コアの間隙水を用いた古水文環境の復元
Grant-in-Aid for Early-Career Scientists 2027
鳥取県米子市、淀江平野における完新世堆積物コアの間隙水を用いた古水文環境の復元
Grant-in-Aid for Early-Career Scientists 2026
湯本トラバーチンを解剖する：断層に沿ったCO2湧出のナチュラルアナログとして
Grant-in-Aid for Scientific Research(A) 2026
鳥取県米子市、淀江平野における完新世堆積物コアの間隙水を用いた古水文環境の復元
Grant-in-Aid for Early-Career Scientists 2025
湯本トラバーチンを解剖する：断層に沿ったCO2湧出のナチュラルアナログとして
Grant-in-Aid for Scientific Research(A) 2025
湯本トラバーチンを解剖する：断層に沿ったCO2湧出のナチュラルアナログとして
Grant-in-Aid for Scientific Research(A) 2024
地球学特別研究1B
2025 Intensive lecture Graduate school
地球学特別研究2B
2025 Intensive lecture Graduate school
地球環境学特別演習1B
2025 Intensive lecture Graduate school
地球環境学特別演習2B
2025 Intensive lecture Graduate school
海外特別研究2
2025 Intensive lecture Graduate school
海外特別研究2
2025 Intensive lecture Graduate school
地質調査法2
2025 Intensive lecture Undergraduate
測量及び地質調査法2実習
2025 Intensive lecture Undergraduate
地球学野外実習2
2025 Intensive lecture Undergraduate
地球学卒業演習
2025 Intensive lecture Undergraduate
地球学ゼミナールB
2025 Intensive lecture Undergraduate
地球学卒業研究B
2025 Intensive lecture Undergraduate
特別研究
2025 Intensive lecture Undergraduate
海外特別研究
2025 Intensive lecture Undergraduate
地球学基礎B
2025 Weekly class Undergraduate
地球学実験B
2025 Weekly class Undergraduate
地球学特別研究4B
2025 Intensive lecture Graduate school
地球学特別研究5B
2025 Intensive lecture Graduate school
地球環境学ゼミナールB
2025 Intensive lecture Graduate school
海外特別研究3
2025 Intensive lecture Graduate school
海外特別研究3
2025 Intensive lecture Graduate school
地球学特別研究3B
2025 Intensive lecture Graduate school
地球学演習Ⅳ
2025 Intensive lecture Undergraduate
地球環境学ゼミナールA
2025 Intensive lecture Graduate school
海外特別研究5
2025 Intensive lecture Graduate school
地球学特別研究5A
2025 Intensive lecture Graduate school
地球学特別研究3A
2025 Intensive lecture Graduate school
地球学特別研究4A
2025 Intensive lecture Graduate school
地球学特別研究1A
2025 Intensive lecture Graduate school
地球学特別研究2A
2025 Intensive lecture Graduate school
地球環境学特別演習1A
2025 Intensive lecture Graduate school
地球環境学特別演習2A
2025 Intensive lecture Graduate school
第四紀自然学特論A
2025 Weekly class Graduate school
地球学ゼミナールA
2025 Intensive lecture Undergraduate
地球学卒業研究A
2025 Intensive lecture Undergraduate
堆積・層序学
2025 Weekly class Undergraduate
堆積・層序学実習
2025 Weekly class Undergraduate
特別研究
2024 Intensive lecture Undergraduate
海外特別研究
2024 Intensive lecture Undergraduate
地球学基礎B
2024 Weekly class Graduate school
地球学実験B
2024 Weekly class Graduate school
地球学特別研究3B
2024 Intensive lecture Graduate school
地球学特別研究4B
2024 Intensive lecture Graduate school
地球学特別研究5B
2024 Intensive lecture Graduate school
地球環境学ゼミナールB
2024 Intensive lecture Graduate school
海外特別研究5
2024 Intensive lecture Graduate school
海外特別研究5
2024 Intensive lecture Graduate school
地球学特別研究1B
2024 Intensive lecture Graduate school
地球学特別研究2B
2024 Intensive lecture Graduate school
地球環境学特別演習1B
2024 Intensive lecture Graduate school
地球環境学特別演習2B
2024 Intensive lecture Graduate school
海外特別研究1
2024 Intensive lecture Graduate school
地質調査法2
2024 Intensive lecture Undergraduate
測量及び地質調査法2実習
2024 Intensive lecture Undergraduate
地球学野外実習2
2024 Intensive lecture Undergraduate
地球学演習B
2024 Weekly class Undergraduate
地球学卒業演習
2024 Intensive lecture Undergraduate
地球学演習Ⅳ
2024 Intensive lecture Undergraduate
地球学特別研究3A
2024 Intensive lecture Graduate school
地球学特別研究4A
2024 Intensive lecture Graduate school
地球学特別研究5A
2024 Intensive lecture Graduate school
地球環境学ゼミナールA
2024 Intensive lecture Graduate school
地球学特別研究1A
2024 Intensive lecture Graduate school
地球学特別研究2A
2024 Intensive lecture Graduate school
地球環境学特別演習1A
2024 Intensive lecture Graduate school
地球環境学特別演習2A
2024 Intensive lecture Graduate school
第四紀自然学特論A
2024 Weekly class Graduate school
堆積・層序学
2024 Weekly class Undergraduate
堆積・層序学実習
2024 Weekly class Undergraduate
自然地理学1,2
Level：Undergraduate (liberal arts)
2025
Number of instructed the graduation thesis：3 Number of graduation thesis reviews：3
[Number of master's thesis reviews] (vice-chief)：2
[Number of doctoral thesis reviews] (vice-chief)：1
初芝立命館高等学校スーパーサイエンスハイスクール教育特別授業「Go STEM」
Role(s)： Lecturer
Type： Visiting lecture
2024.09
SDGs：
The GIS-IDEAS Journal
Role(s)： Peer review