Masaaki Yamaguchi

Profile Information

Affiliation: Nuclear Fuel Cycle Engineering Laboratories, Japan Atomic Energy Agency

Degree: PhD(Environmental Study)

J-GLOBAL ID: 200901087997565238
researchmap Member ID: 5000102363

External link: http://www.jaea.go.jp/

Research Interests

Research Areas

Research History

Jul, 2022 - Present

Japan Atomic Energy Agency
Apr, 2018 - Jun, 2022

Japan Atomic Energy Agency
Apr, 2016 - Mar, 2018

Japan Atomic Energy Agency
Nov, 2008 - Mar, 2016

Quintessa Japan
Apr, 2006 - Oct, 2008

特別研究員, 独立行政法人産業技術総合研究所
2005 - 2006

Graduate School of Frontier Sciences, The University of Tokyo

Education

- 2005

The University of Tokyo
- 2000

College of Humanities and Sciences, Nihon University

Papers

Analytical tool of evolution of topography and repository depth to assess impacts of uplift and erosion for HLW disposal

Yamaguchi Masaaki, Kato Tomoko, Suzuki Yuji*, Makino Hitoshi

Genshiryoku Bakkuendo Kenkyu (CD-ROM), 27(2) 72-82, Dec, 2020 Peer-reviewed
Development of a method of safety assessment for geological disposal considering long-term evolution of geological and topographical environment by uplift and erosion

Wakasugi Keiichiro, Yamaguchi Masaaki, Koo Shigeru*, Nagao Fumiya, Kato Tomoko, Suzuki Yuji*, Ebashi Takeshi, Umeki Hiroyuki*, Niibori Yuichi*

Nihon Genshiryoku Gakkai Wabun Rombunshi, 16(1) 15-33, Mar, 2017 Peer-reviewed
Sediment and $^{137}$Cs transport and accumulation in the Ogaki Dam of eastern Fukushima

Yamada Susumu, Kitamura Akihiro, Kurikami Hiroshi, Yamaguchi Masaaki, Malins A., Machida Masahiko

Environmental Research Letters, 10(1) 014013\_1-014013\_9, Jan, 2015 Peer-reviewed
Sediment and ¹³⁷Cs transport and accumulation in the Ogaki Dam of eastern Fukushima

Susumu Yamada, Akihiro Kitamura, Hiroshi Kurikami, Masaaki Yamaguchi, Alex Malins, Masahiko Machida

Environmental Research Letters, 10(1), Jan 1, 2015
Mathematical Modeling of Radioactive Contaminants in the Fukushima Environment

Akihiro Kitamura, Hiroshi Kurikami, Masaaki Yamaguchi, Yoshihiro Oda, Tatsuo Saito, Tomoko Kato, Tadafumi Niizato, KaZuki Iijima, Haruo Sato, Mikazu Yui …

NUCLEAR SCIENCE AND ENGINEERING, 179(1) 104-118, Jan, 2015
Comparative Study on Annual 137Cs Discharge Rates after the Fukushima Dai-ichi Nuclear Power Plant Accident from Two Distinct Watershed Simulation Models

北村哲浩, 今泉圭隆, 山口正秋, 油井三和, 鈴木規之, 林誠二

環境放射能除染学会誌, 2(3) 185-192, Sep 26, 2014
Predicting the long-term Cs-137 distribution in Fukushima after the Fukushima Dai-ichi nuclear power plant accident: a parameter sensitivity analysis

Masaaki Yamaguchi, Akihiro Kitamura, Yoshihiro Oda, Yasuo Onishi

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 135 135-146, Sep, 2014 Peer-reviewed
Predicting sediment and cesium-137 discharge from catchments in eastern Fukushima

Akihiro Kitamura, Masaaki Yamaguchi, Hiroshi Kurikami, Mikazu Yui, Yasuo Onishi

Anthropocene, 5 22-31, 2014
Development of a model to predict a radionuclide distribution based on soil migration after Fukushima Dai-ichi Nuclear Power Plant accident

山口正秋, 前川恵輔, 竹内真司, 北村哲浩, 大西康夫

原子力バックエンド研究(CD-ROM), 20(1/2) 53-69, Dec 15, 2013
Bounding analysis of uplift and erosion scenario for an HLW repository

Wakasugi Keiichiro, Nakajima Kunihiko*, Shimemoto Hidenori, Shibata Masahiro, Yamaguchi Masaaki

Proceedings of 21st International Conference on Nuclear Engineering (ICONE-21) (DVD-ROM), 5 9, Jul, 2013 Peer-reviewed
Temporal changes in the paleoenvironment of the inner part of paleo-Tokyo Bay during the middle Pleistocene (MIS 11 and MIS 9): Analysis of fossil ostracode assemblages from the Shimosa Group in the Shobu core, Saitama Prefecture, Central Japan

入月俊明, 納谷友規, 山口正秋, 水野清秀

地質学雑誌, 117(1) 35-52, Jan 15, 2011
Development of the Kiso River Delta during the Last 10,000 Years Based on Analyses of Sedimentary Cores and 14C Datings

大上隆史, 須貝俊彦, 藤原治, 山口正秋, 笹尾英嗣

地学雑誌, 118(4) 665-685, Aug 25, 2009
Paleoseismic History of the Northern Ayasegawa Fault since the Late Pleistocene Reconstructed from Shallow Sub-surface Deformation Structure

須貝俊彦, 水野清秀, 八戸昭一, 中里裕臣, 石山達也, 杉山雄一, 細矢卓志, 松島紘子, 吉田英嗣, 山口正秋 …

地学雑誌, 116(3/4) 394-409, Aug 25, 2007
Stratigraphy of Upper Holocene Deposits and Landform Evolution in the Kiso River Delta System, Central Japan

山口正秋, 須貝俊彦, 藤原治, 大上隆史, 大森博雄

第四紀研究, 45(6) 451-462, Dec 1, 2006
Three-Dimensional Structures of the Latest Pleistocene to Holocene Sequence at Nobi Plain, Central Japan

山口正秋, 須貝俊彦, 大上隆史, 藤原治, 大森博雄

地学雑誌, 115(1) 41-50, Feb 25, 2006
Depositional Process and Landform of the Kiso River Delta, Reconstructed from Grain Size Distributions, and Accumulation Rate of Sediment Cores

山口正秋, 須貝俊彦, 藤原治, 大森博雄, 鎌滝孝信, 杉山雄一

第四紀研究, 44(1) 37-44, Feb 1, 2005
Depositional Process of the Holocene Nobi Plain, Central Japan, Reconstructed from Drilling Core Analysis

山口正秋, 須貝俊彦, 藤原治, 大森博雄, 鎌滝孝信, 杉山雄一

第四紀研究, 42(5) 335-346, Oct 1, 2003

Misc.

Model catchments for testing biosphere assessment models of geological disposal

Yamaguchi Masaaki, Suzuki Yuji*, Kabasawa Satsuki, Kato Tomoko

JAEA-Data/Code 2024-001, 21, Mar, 2024
Brief introduction to research on geological disposal of high-level radioactive waste

Yamaguchi Masaaki

Genshiryoku Bakkuendo Kenkyu (CD-ROM), 29(1) 38-41, Jun, 2022
User Manual of Soil and Cesium Transport (SACT), a Program to Predict Long-term Cs Distribution using USLE for Soil Erosion, Transportation and Deposition

齊藤宏, 山口正秋, 北村哲浩

日本原子力研究開発機構JAEA-Testing(Web), (2016-003) WEB ONLY, Dec, 2016
Advancing an Evaluation Methodology to Assess the Potential Effects of Uplift, Erosion, and Climate and Sea-level Changes on HLW Disposal-Modeling Geomorphic Change Caused by Fluvial Erosion in Japan-

注連本英典, 山口正秋, 若杉圭一郎, 柴田雅博

日本原子力研究開発機構JAEA-Research(Web), 2013(2013-012) WEB ONLY-2,1-35, Oct, 2013
Preliminary calculation of sediment and 137Cs transport in the Ukedo River of Fukushima

Hiroshi Kurikami, Hiroshi Kurikami, Akihiro Kitamura, Masaaki Yamaguchi, Yasuo Onishi

Transactions of the American Nuclear Society, 109 149-152, Jan 1, 2013
Simulating long-term 137Cs distribution on territory of Fukushima

Akihiro Kitamura, Masaaki Yamaguchi, Yoshihiro Oda, Hiroshi Kurikami, Hiroshi Kurikami, Yasuo Onishi

Transactions of the American Nuclear Society, 109 153-155, Jan 1, 2013
Pollen assemblages of GS-SB-1 drilling core at Shobu Town, Saitama Prefecture, central Kanto plain, Japan.

本郷美佐緒, 納谷友規, 山口正秋, 水野清秀

地質調査研究報告, 62(7-8) 281-318, Dec 31, 2011
Lithofacies and physical properties of 350-m-long GS-SB-1 core, central Kanto plain, Japan

山口正秋, 水野清秀, 納谷友規, 本郷美佐緒, 中里裕臣, 中澤努

地質調査研究報告, 60(3-4) 147-197, Jul 13, 2009
Occurrence horizons of diatom fossils and recognition of marine sediments in the Shobu Core (GS-SB-1), Saitama Prefecture, central Kanto plain, Japan.

納谷友規, 山口正秋, 水野清秀

地質調査研究報告, 60(3-4) 245-256, Jul 13, 2009
Paleomagnetic and rock-magnetic measurements of the GS-SB-1 core at Shobu Town, central Kanto Plain, Japan.

植木岳雪, 山口正秋, 本郷美佐緒, 納谷友規, 水野清秀

地質調査研究報告, 60(3-4) 199-243, Jul 13, 2009
熊野トラフ西部海底扇状地表層のタービダイトの分布と海底環境(予報)

大村亜希子, 白井正明, 内田淳一, 山口正秋, 大上隆史, 安永雅

日本堆積学会例会プログラム・講演要旨, 2006 75-76, Mar 25, 2006
Evolution of the micro landforms in the Nobi flood plain, Central Japan, based on the facies and distributions of the uppermost Holocene

YAMAGUCHI Masaaki, SUGAI Toshihiko, FUJIWARA Osamu, OGAMI Takashi, OHMORI Hiroo

(69) 94-94, Mar 10, 2006
7. Evolution of the micro landforms in the Nobi flood plain, Central Japan, based on the facies and distributions of the uppermost Holocene sediment(Abstracts of Papers Presented at the Fall Meeting of the Union, October 2005)

YAMAGUCHI Masaaki, SUGAI Toshihiko, FUJIWARA Osamu, OGAMI Takashi, OHMORI Hiroo

27(1) 102-102, 2006
Formation of the Holocene fluvial sediments in Nobi Plain, Central Japan Based on the magnetic susceptibility of core samples

OGAMI Takashi, SUGAI Toshihiko, FUJIWARA Osamu, YAMAGUCHI Masaaki, NARUHASHI Ryutaro, OHMORI Hiroo

(68) 98-98, Sep 10, 2005
綾瀬川断層の活動履歴

須貝俊彦, 水野清秀, 八戸昭一, 石山達也, 杉山雄一, 中里裕臣, 細矢卓志, 松島紘子, 大上隆史, 吉田英嗣 …

日本第四紀学会講演要旨集, (35) 22-23, Aug 15, 2005
Three dimensional forms of the Holocene Nobi plain sediments, based on the analysis of numerous core logs

YAMAGUCHI Masaaki, SUGAI Toshihiko, FUJIWARA Osamu, OGAMI Takashi

(67) 211-211, Mar 10, 2005
Impacts of Maebashi Mud flow Event to the Fluvial Landform Development neighboring the Confluence of the Tone River and the Agatsuma River, Central Japan

YOSHIDA Hidetsugu, SUGAI Toshihiko, SAKAGUCHI Hajime, YAMAGUCHI Masaaki, OGAMI Takashi

(67) 258-258, Mar 10, 2005
Progradational process of the Kiso river delta, based on the analysis of numerous core logs

YAMAGUCHI Masaaki, SUGAI Toshihiko, FUJIWARA Osamu, OGAMI Takashi

(66) 89-89, Sep 10, 2004
P-102 A distribution pattern of tsunami sand sheet in inter-tidal zone : an example from the lake Mochirippu-numa, eastern Hokkaido, Japan

KAMATAKI T, SAWAI Y, SHISHIKURA M, SATAKE K, YAMAGUCHI M, MATSUMOTO D

Annual Meeting of the Geological Society of Japan, 2004 210-210, 2004
Accumulation rate during the Holocene in the Nobi Plain, Central Japan

YAMAGUCHI Masaaki, SUGAI Toshihiko, OHMORI Hiroo, FUJIWARA Osamu, KAMATAKI Takanobu, SUGIYAMA Yuichi

61 136-136, Mar 1, 2002

Presentations

Analysis of nuclide migration reflecting changes in topography, repository depth, and groundwater flow due to uplift and erosion

Kabasawa Satsuki, Sakamoto Michihito*, Takahashi Yuta, Yamaguchi Masaaki

令和5年度日本原子力学会北関東支部リモート若手研究者・技術者発表会
An Evaluation of runoff point considering topography and repository depth changes due to uplift and erosion

Sakamoto Michihito*, Wakasugi Keiichiro*, Kabasawa Satsuki, Yamaguchi Masaaki

日本原子力学会2023年秋の大会
Technical trend and issues of deep borehole disposal as an alternative disposal option

Koo Shigeru*, Yamaguchi Masaaki, Makino Hitoshi, Tsuchiya Terumitsu*, Kanzaki Tametoki*

日本原子力学会2023年秋の大会
Study of the treatment of changes in topography and repository depth due to uplift and erosion in nuclide migration evaluation

Kabasawa Satsuki, Sakamoto Michihito*, Takahashi Yuta, Yamaguchi Masaaki

日本原子力学会2023年春の年会
An Efficient analysis of uplift and erosion based on topography and repository depth change evaluation

Sakamoto Michihito*, Wakasugi Keiichiro*, Kabasawa Satsuki, Yamaguchi Masaaki

第7回三私大学合同研究発表会
Development of the Topography and repository depth transition analysis tool for coastal areas (TARTAN-II)

Yamaguchi Masaaki, Kato Tomoko, Suzuki Yuji*, Kabasawa Satsuki, Mihara Morihiro, Makino Hitoshi

日本原子力学会2022年秋の大会
Investigation of technical information related to deep borehole disposal

Koo Shigeru*, Makino Hitoshi, Yamaguchi Masaaki, Ebashi Takeshi, Takahashi Hirokazu*, Tsuchiya Terumitsu*, Mitsuyama Kazuaki*

日本原子力学会バックエンド部会第37回バックエンド夏期セミナー
Study of sensitivity analysis of the effects of longitudinal dispersion in the evaluation of geological disposal nuclide migration

Kabasawa Satsuki, Yamaguchi Masaaki, Ebashi Takeshi, Makino Hitoshi, Minari Eriko*

日本原子力学会バックエンド部会第37回バックエンド夏期セミナー
Temporal changes of radiocesium outflow in mountainous forest of the Abukuma Mountains, Fukushima

Niizato Tadafumi, Abe Hironobu, Mitachi Katsuaki, Ishii Yasuo, Sasaki Yoshito, Watanabe Takayoshi, Kitamura Akihiro, Yamaguchi Masaaki

日本地球惑星科学連合2016年大会
東京電力福島第一原子力発電所事故により放出された放射性セシウムの森林土壌における深度分布の経年変化

新里忠史, 阿部寛信, 石井康雄, 佐々木祥人, 三田地勝昭, 北村哲浩, 山口正秋

日本地質学会学術大会講演要旨, Sep 10, 2015
Simulating soil and cesium137 losses from land surface of eastern Fukushima Prefecture

Kitamura Akihiro, Yamaguchi Masaaki, Kurikami Hiroshi, Sato Haruo, Yui Mikazu

19th Pacific Basin Nuclear Conference (PBNC 2014)
Simulating air dose rate of radioactivity in selected area of Fukushima by PHITS

Saito Tatsuo, Yamaguchi Masaaki, Kato Tomoko, Oda Yoshihiro, Kitamura Akihiro

19th Pacific Basin Nuclear Conference (PBNC 2014)
Simulation of transport and deposition of sediment and 137 cesium in the Ogaki Dam reservoir during flooding

Kitamura Akihiro, Yamada Susumu, Yamaguchi Masaaki, Kurikami Hiroshi, Machida Masahiko, Miyahara Kaname, Yui Mikazu

環境放射能除染学会第3回研究発表会
An Approach to establish information basis of Weathered zone for the safety assessment to HLW disposal over long-term

Shimemoto Hidenori, Wakasugi Keiichiro, Shibata Masahiro, Yamaguchi Masaaki

日本地球惑星科学連合2014年大会
Simulating sediment and Cs 137 transfer and deposition in dams of Fukushima prefecture

Kitamura Akihiro, Yamaguchi Masaaki, Sato Haruo, Yui Mikazu

European Geosciences Union General Assembly 2014
福島長期環境動態研究(8)被ばく評価

齋藤龍郎, 山口正秋, 加藤智子, 小田好博, 北村哲浩

日本原子力学会春の年会予稿集(CD-ROM), Mar 10, 2014
長期的な地形変化を考慮した地層処分の隆起侵食シナリオ構築に関する方法論の検討

山口正秋, 若杉圭一郎, 小尾繁, 注連本英典, 柴田雅博

日本原子力学会春の年会予稿集(CD-ROM), Mar 10, 2014
Long-term assessment of transport of radioactive contaminant in the environment of Fukushima (F-TRACE Project), 8; Radioactive exposure evaluation

Saito Tatsuo, Yamaguchi Masaaki, Kato Tomoko, Oda Yoshihiro, Kitamura Akihiro

日本原子力学会2014年春の年会
セシウム137の将来分布予測における土地利用及び地形データの解像度の影響について

小田好博, 山口正秋, 新里忠史, 北村哲浩

日本地球化学会年会講演要旨集, 2014
Prototype model development for dynamics of radioactive materials in environment as base for dose assessment in contaminated area by the Fukushima-Daiichi accident:Study of input parameters

Yamaguchi Masaaki, Maekawa Keisuke, Takeuchi Shinji

Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan, Mar 11, 2013

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