Nishiyama Ryuichi 西山竜一

… Alternative Names

西山竜一ニシヤマリュウイチ

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Researcher Number	10835101
Other IDs
Affiliation (Current)	2025: 東京大学, 地震研究所, 助教
Affiliation (based on the past Project Information) *help	2019 – 2023: 東京大学, 地震研究所, 助教
Review Section/Research Field	Principal Investigator Basic Section 17040:Solid earth sciences-related Except Principal Investigator Medium-sized Section 17:Earth and planetary science and related fields / Basic Section 17040:Solid earth sciences-related
Keywords	Principal Investigator 宇宙線電磁成分 / 電磁カスケード / 重力 / 火山 / 地下水 / 土壌水分 / 電子・陽電子・ガンマ線 / 宇宙線 Except Principal Investigator 重力水平勾配 / 地震即時重力変化 … More / 超伝導重力計 / マグマ / 火山噴火 / 火道 / 潮汐 / 地下水 / マグマ移動 / 火山 / 宇宙線透視 / 地殻変動 / 重力 Less

２台の超伝導重力計を用いた重力水平勾配観測による地震即時重力変化の検出
- Principal Investigator
  
  今西祐一
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Challenging Research (Exploratory)
- Review Section
  
  Medium-sized Section 17:Earth and planetary science and related fields
- Research Institution
  The University of Tokyo
Soil water measurements with cosmic-ray showers for better correction of gravity data at active volcanoesPrincipal Investigator
- Principal Investigator
  
  Nishiyama Ryuichi
- Project Period (FY)
  2019 – 2023
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 17040:Solid earth sciences-related
- Research Institution
  The University of Tokyo
Deciphering continuous gravity, strain and tilt data with cosmic-ray radiography for mass transport under volcanoes
- Principal Investigator
  
  Okubo Shuhei
- Project Period (FY)
  2018 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 17040:Solid earth sciences-related
- Research Institution
  The University of Tokyo

All 2024 2023 2022 2019

All Journal Article Presentation Book

[Book] Joint Inversion of Muography and Gravity Data for 3D Density Imaging of Volcanoes (in AGU Monograph "Muography")2022
- Author(s)
  R. Nishiyama
- Total Pages
  10
- Publisher
  Wiley
- Data Source
  KAKENHI-PROJECT-19K14810
[Journal Article] Detectability of gravity changes on the sea surface due to magma accumulation beneath submarine volcanoes2024
- Author(s)
  Nishiyama Ryuichi
- Journal Title
  
  Geophysical Journal International
  
  Volume: - Issue: 1 Pages: 33-42
- DOI
  10.1093/gji/ggae146
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K14810
[Journal Article] Cooperative Gravity Measurements in Izu-Oshima for Revealing Subsurface Volcanic Processes and Application to Evaluation of Volcanic Activities2023
- Author(s)
  鬼澤真也・西山竜一・今西祐一・大久保修平・安藤　忍・長岡　優・島村哲也・平山康夫・石原昂典・松田健助・金子祐也・上田義浩・谷田部史尭・渡邉篤志・安藤美和子・坂下至功
- Journal Title
  
  東京大学地震研究所彙報
  
  Volume: 97 Pages: 13-32
- DOI
  10.15083/0002006042
- URL
  https://repository.dl.itc.u-tokyo.ac.jp/records/2006042
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K18644
[Journal Article] Absolute Gravity Measurements in Mt. Fuji with two FG5 Gravimeters in September 2022 : Establishment of Calibration Line for Relative Gravimeters and Calibration of Instrumental Offsets of FG5 Gravimeters2023
- Author(s)
  今西祐一・西山竜一・本多　亮
- Journal Title
  
  東京大学地震研究所彙報
  
  Volume: 97 Pages: 1-11
- DOI
  10.15083/0002005972
- URL
  https://repository.dl.itc.u-tokyo.ac.jp/records/2005972
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K18644
[Journal Article] Measurement of Vertical Gradient of Gravity Using Absolute Gravimeter2023
- Author(s)
  今西祐一、西山竜一、本多亮
- Journal Title
  
  Journal of the Geodetic Society of Japan
  
  Volume: 69 Issue: 0 Pages: 8-17
- DOI
  10.11366/sokuchi.69.2
- ISSN
  0038-0830, 2185-517X
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K18644
[Journal Article] Deformation of an infinite elastic cone due to a point pressure source buried on the axis: implications to volcanic deformation2023
- Author(s)
  R. Nishiyama
- Journal Title
  
  Geophysical Journal International
  
  Volume: 232(2) Issue: 2 Pages: 1129-1139
- DOI
  10.1093/gji/ggac379
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K14810, KAKENHI-PROJECT-18H01305
[Journal Article] 宇宙線を用いた土壌水分量把握による土砂災害の予測2023
- Author(s)
  西山竜一
- Journal Title
  
  京都大学防災研究所共同研究報告書
  
  Volume: -
- Open Access
- Data Source
  KAKENHI-PROJECT-19K14810
[Journal Article] Postseismic gravity changes after the 2011 Tohoku earthquake observed by superconducting gravimeters at Mizusawa, Japan2023
- Author(s)
  Tamura Yoshiaki、Kazama Takahito、Nishiyama Ryuichi、Matsuo Koji、Imanishi Yuichi
- Journal Title
  
  Earth, Planets and Space
  
  Volume: 75 Issue: 1 Pages: 145-145
- DOI
  10.1186/s40623-023-01901-9
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K18644, KAKENHI-PROJECT-22K03777
[Journal Article] Radiography using cosmic-ray electromagnetic showers and its application in hydrology2022
- Author(s)
  A. Taketa, R. Nishiyama, K. Yamamoto, and M. Iguchi
- Journal Title
  
  Scientific Reports
  
  Volume: 12 Issue: 1 Pages: 20395-20395
- DOI
  10.1038/s41598-022-24765-7
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K14810
[Presentation] 点圧力源による円錐地形の変形と重力変化2023
- Author(s)
  西山竜一
- Organizer
  日本地球惑星科学連合大会2023年
- Data Source
  KAKENHI-PROJECT-19K14810
[Presentation] 坑道での宇宙線空気シャワー観測による土壌水分量の測定2023
- Author(s)
  西山竜一・武多昭道・山本圭吾・井口正人
- Organizer
  令和4年度京都大学防災研究所研究発表講演会
- Data Source
  KAKENHI-PROJECT-19K14810
[Presentation] 国立天文台水沢VLBI観測所の超伝導重力計で観測された2011年東北地方太平洋沖地震発生後の重力変化（その２）2023
- Author(s)
  今西祐一・田村良明・風間卓仁・西山竜一・松尾功二
- Organizer
  日本地球惑星科学連合2023年大会
- Data Source
  KAKENHI-PROJECT-21K18644
[Presentation] 富士山の重力観測網の構築とその活用2023
- Author(s)
  本多亮・今西祐一・西山竜一・名和一成・風間卓仁
- Organizer
  日本地球惑星科学連合2023年大会
- Data Source
  KAKENHI-PROJECT-21K18644
[Presentation] ラコスト型相対重力計の分解2023
- Author(s)
  風間卓仁・吉川慎・岡田和見・若林環・西山竜一・大柳諒・今西祐一
- Organizer
  日本地球惑星科学連合2023年大会
- Data Source
  KAKENHI-PROJECT-21K18644
[Presentation] 富士山における2台のFG5による絶対重力測定（2022年9月）－相対重力計検定ラインの構築およびFG5の器差検定－2023
- Author(s)
  今西祐一・西山竜一・本多亮
- Organizer
  日本地球惑星科学連合2023年大会
- Data Source
  KAKENHI-PROJECT-21K18644
[Presentation] 日本縦断測線を用いたバネ式相対重力計のスケールファクター検定2023
- Author(s)
  若林環・風間卓仁・大島弘光・岡田和見・今西祐一・西山竜一・長縄和洋・大柳諒・大倉敬宏・吉川慎
- Organizer
  日本地球惑星科学連合2023年大会
- Data Source
  KAKENHI-PROJECT-21K18644
[Presentation] 国立天文台水沢の超伝導重力計で観測された2011年東北地方太平洋沖地震発生後の重力変化2022
- Author(s)
  田村良明・今西祐一・西山竜一・風間卓仁・松尾功二
- Organizer
  日本地球惑星科学連合2022年大会
- Data Source
  KAKENHI-PROJECT-21K18644
[Presentation] 桜島での連続絶対重力測定2019
- Author(s)
  西山竜一，今西祐一，武多昭道，大久保修平，山本圭吾，井口正人
- Organizer
  災害の軽減に貢献するための地震火山観測研究計画第2次桜島大規模噴火総合研究グループ研究集会
- Data Source
  KAKENHI-PROJECT-19K14810
[Presentation] 絶対重力の長期変動から読み解く桜島の火山活動（2009年～2018年）2019
- Author(s)
  大久保修平, 山本圭吾, 井口正人, 田中愛幸, 今西祐一, 西山竜一, 安藤美和子, 渡邉篤志
- Organizer
  日本地球惑星科学連合合同大会2019
- Data Source
  KAKENHI-PROJECT-18H01305

1. Okubo Shuhei (30152078)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
2. 田中宏幸 (20503858)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
3. 山本圭吾 (40283676)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
4. 井口正人 (60144391)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
5. 今西祐一 (30260516)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results

Nishiyama Ryuichi 西山 竜一

西山 竜一 ニシヤマ リュウイチ

Research Projects

Research Products

Co-Researchers

２台の超伝導重力計を用いた重力水平勾配観測による地震即時重力変化の検出

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Soil water measurements with cosmic-ray showers for better correction of gravity data at active volcanoesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Deciphering continuous gravity, strain and tilt data with cosmic-ray radiography for mass transport under volcanoes

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Book] Joint Inversion of Muography and Gravity Data for 3D Density Imaging of Volcanoes (in AGU Monograph "Muography")2022

Author(s)

Total Pages

Publisher

Data Source

[Journal Article] Detectability of gravity changes on the sea surface due to magma accumulation beneath submarine volcanoes2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Cooperative Gravity Measurements in Izu-Oshima for Revealing Subsurface Volcanic Processes and Application to Evaluation of Volcanic Activities2023

Author(s)

Journal Title

DOI

URL

Language

Data Source

[Journal Article] Absolute Gravity Measurements in Mt. Fuji with two FG5 Gravimeters in September 2022 : Establishment of Calibration Line for Relative Gravimeters and Calibration of Instrumental Offsets of FG5 Gravimeters2023

Author(s)

Journal Title

DOI

URL

Language

Data Source

[Journal Article] Measurement of Vertical Gradient of Gravity Using Absolute Gravimeter2023

Author(s)

Journal Title

DOI

ISSN

Language

Data Source

[Journal Article] Deformation of an infinite elastic cone due to a point pressure source buried on the axis: implications to volcanic deformation2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 宇宙線を用いた土壌水分量把握による土砂災害の予測2023

Author(s)

Journal Title

Data Source

[Journal Article] Postseismic gravity changes after the 2011 Tohoku earthquake observed by superconducting gravimeters at Mizusawa, Japan2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Radiography using cosmic-ray electromagnetic showers and its application in hydrology2022

Author(s)

Journal Title

DOI

Data Source

[Presentation] 点圧力源による円錐地形の変形と重力変化2023

Author(s)

Organizer

Data Source

[Presentation] 坑道での宇宙線空気シャワー観測による土壌水分量の測定2023

Author(s)

Organizer

Nishiyama Ryuichi 西山竜一

西山竜一ニシヤマリュウイチ