Researcher Database

（Last updated : 2024-05-06 13:47:26）　

YAMADA KEITARO

Department / Course Ritsumeikan-Global Innovation Research Organization

Title / Position Assistant Professor

Other Affiliations
1.	Kinugasa Research Organization Research Center for the Pan-Pacific Civilization

Academic background
1.	～2017/03	Doctorial Course │ Division of Earth and Planetary Sciences │ Graduate School of Science │ Kyoto University │ Completed Doctor of Philosophy
2.	～2014/03	Master Course │ Division of Earth and Planetary Sciences │ Graduate School of Science │ Kyoto University │ Completed
3.	～2012/03	Department of Earth and Planetary Sciences │ School of Science │ Kyushu University │ Graduated

Business career
1.	2021/04/01 ～	Research Assistant Professor │ Ritsumeikan Global Innovation Research Organization │ Ritsumeikan University
2.	2018/04/01 ～ 2021/03/31	Post doctoral fellow │ Research Organization of Science and Technology │ Ritsumeikan University
3.	2017/04/01 ～ 2018/03/31	Research Fellow │ │ Japan Society for the Promotion of Science(PD)
4.	2016/04/01 ～ 2017/03/31	Research Fellow │ │ Japan Society for the Promotion of Science(DC2)

Research activities
1.		American Geophysical Union
2.		Japan Association for Quaternary Research
3.		Japan Geoscience Union

Present specialized field
Geology, Stratigraphy/Paleontology (Keyword：Paleoclimatology, Stable isotope, Varves,　Sedimentology, Event stratigraphy, Quaternary research, Tephra, Tsunami deposits, Active faults)

Papers
1.	2024/01	Cryptotephra preserved in Lake Suigetsu (SG14 core) reveals the eruption timing and distribution of ash fall from Japanese volcanoes during the Late-glacial to early Holocene │ Quaternary Science Reviews │ 324 (15),pp.108376 (Co-authored)
2.	2024/01	The contemporary stable isotope hydrology of Lake Suigetsu and surrounding catchment (Japan) and its implications for sediment-derived palaeoclimate records │ Quaternary Science Advances │ 13,pp.100145 (Co-authored)
3.	2023/07	Reliable radiocarbon dating of fossil pollen grains: It is truly possible │ Quaternary Geochronology │ 77,pp.101456 (Co-authored)
4.	2023/05	Radiocarbon ages and tsunami deposits in laminated mud layers from the Lake Harutori, Pacific coast of Hokkaido, Northeast Japan │ Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms │ 538,pp.173-178 (Co-authored)
5.	2022/12	Beppu Bay, Japan, as a candidate Global Boundaries Stratotype Section and Point for an Anthropocene series │ The Anthropocene Review │ (Co-authored)
Display All（19）

Others
1.	2023/12	Ranalyser(プログラム) │ (Sole-authored)
2.	2023/12	Rgrains(プログラム) │ (Sole-authored)

Academic conference presentation
1.	2024/05/30	Orbital-scale Oxygen isotope variations of fossil pollen in Lake Suigetsu
2.	2024/04/21	Rgrains: Efficient Measurement and Analysis of Particle Shapes Using Image Analysis
3.	2023/07/20	Stable isotope records of fossil pollen in Lake Suigetsu, Japan, since the last interglacial (INQUA)
4.	2020/07	Pollen isotope records from Lake Suigetsu, Japan (JpGU-AGU Joint Meeting 2020)
5.	2019/07/27	Stable isotope records of pollen fossils in Lake Suigetsu, Japan, during the Last Glacial-Interglacial Transition (INQUA)
Display All（11）

Winning science prize
1.	2015/08	INQUA Student Poster Award (Stratigraphy of new multiple cores from Lake Suigetsu, central Japan)

Grants-in-Aid for Scientific Research -KAKENHI-
1.	2020/07/30 ～ 2024/03/31	Mapping of coastal boulders and wave source estimation for tsunami risk assessment in the South China Sea │ Challenging Research(Exploratory)
2.	2019/04/01 ～ 2023/03/31	Palaeoclimatic reconstructions for the last 150,000 years based on stable isotope ratios of fossil pollen grains │ Early-Career Scientists
3.	2019/04/01 ～ 2022/03/31	Verification of abrupt climate change in hothouse climate state from lacustrine varve record │ Grant-in-Aid for Scientific Research(B)
4.	2018/04/01 ～ 2022/03/31	Improving radiocarbon calibration model by dating fossil pollen pellets prepared by cell sorter │ Grant-in-Aid for Scientific Research(A)
5.	2016/04/01 ～ 2018/03/31	Extraction of fossil pollen grains from sediment matrix by cell-sorter and improving radiocarbon calibration │ Grant-in-Aid for challenging Exploratory Research

Home Page
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External Researcher ID
ORCID ID
0000-0003-0611-8133