Masaoka Naoya 正岡直也

Researcher Number	90786568
Other IDs
Affiliation (Current)	2025: 京都大学, 農学研究科, 助教
Affiliation (based on the past Project Information) *help	2021 – 2024: 京都大学, 農学研究科, 助教 2017 – 2021: 京都大学, 農学研究科, 特定助教
Review Section/Research Field	Principal Investigator Basic Section 40010:Forest science-related / Forest science Except Principal Investigator Basic Section 40010:Forest science-related / Medium-sized Section 40:Forestry and forest products science, applied aquatic science, and related fields / Basic Section 22040:Hydroengineering-related
Keywords	Principal Investigator ゲルフパーミアメータ / T-TDR / 排水能力 / 内部侵食 / 山地斜面 / 流出モデル / テンシオメータ / 地形解析 / 降雨流出過程 / 集水性 … More / 圧力水頭 / 強風化基岩 / 基岩面地形 / T-TDRセンサー / 水分特性曲線 / 飽和透水係数 / ゲルフパーミアメータ法 / 土壌透水性 / 排水構造 / 水みち / 岩石学 / 土壌物理学 / 森林水文学 / 水循環 / 自然現象観測・予測 / 不飽和透水曲線 / コアサンプル / 蒸発法 / 間隙連結特性 / 森林土壌 / 亀裂浸透 / 亀裂流 / ワンステップ流出法 / 改良蒸発法 / 不飽和水文特性 / 水源涵養 / 花崗岩 / 風化基岩 … More Except Principal Investigator 崩壊危険度評価 / 地下水挙動 / 物理探査 / 地形発達 / 深層崩壊 / 未経験降雨指数 / 水源涵養 / 山体地下水 / 土砂洪水氾濫 / 土石流 / 斜面崩壊 / 水文モデル / 土砂災害 / モデル開発 / 飽和不飽和浸透流 / 洪水流出 / 流出モデル / 斜面モデル / 土壌物理性 / 鉛直浸透過程 / 流出機構 / 降雨流出応答 / 谷壁斜面 / 山地源流域 Less

Research on internal erosion of mountain slopes due to rainfall and improvement of drainage capacityPrincipal Investigator
- Principal Investigator
  
  正岡直也
- Project Period (FY)
  2024 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 40010:Forest science-related
- Research Institution
  Kyoto University
Study on the spatial distribution of water flow path within the soil layer in mountainous hillslopesPrincipal Investigator
- Principal Investigator
  
  Masaoka Naoya
- Project Period (FY)
  2020 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 40010:Forest science-related
- Research Institution
  Kyoto University
高精度土砂災害予測のための山体地下水を考慮した水文モデルの開発と展開手法の構築
- Principal Investigator
  
  小杉賢一朗
- Project Period (FY)
  2020 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 40:Forestry and forest products science, applied aquatic science, and related fields
- Research Institution
  Kyoto University
Development of a storm-runoff model based on the measurements of saturated-unsaturated flow on a hillslope.
- Principal Investigator
  
  Kojima Nagahiro
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 22040:Hydroengineering-related
- Research Institution
  Lake Biwa Environmental Research Institute
Development of a method for evaluating the risk of deep-seated landslides using geomorphological techniques and various sensing technologies
- Principal Investigator
  
  Yamakawa Yosuke
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 40010:Forest science-related
- Research Institution
  University of Tsukuba
Investigations of hydrological properties of forest soil and weathered bedrock layers by using improved evaporation methodPrincipal Investigator
- Principal Investigator
  
  Masaoka Naoya
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Forest science
- Research Institution
  Kyoto University

All 2023 2022 2021 2020 2019 2018 2017

All Journal Article Presentation Book

[Book] 水文・水資源ハンドブック第二版　3.4.1項2022
- Author(s)
  正岡直也
- Total Pages
  615
- Publisher
  朝倉書店
- ISBN
  9784254261745
- Data Source
  KAKENHI-PROJECT-20H00434
[Book] 砂防の観測の現場を訪ねて3 ～水の動きの不思議～基岩層を介した降雨流出プロセスの解明2022
- Author(s)
  小杉賢一朗・桂　真也・正岡直也・藤本将光
- Total Pages
  158
- Publisher
  公益社団法人砂防学会
- ISBN
  9784990500030
- Data Source
  KAKENHI-PROJECT-20H00434
[Book] 砂防の観測の現場を訪ねて3 ～水の動きの不思議～深層崩壊メカニズムの解明をめざす2022
- Author(s)
  正岡直也; 小杉賢一朗; 谷知幸; 松四雄騎; 山川陽祐
- Total Pages
  158
- Publisher
  公益社団法人砂防学会
- ISBN
  9784990500030
- Data Source
  KAKENHI-PROJECT-20H00434
[Journal Article] Effects of geological differences on rainfall–runoff characteristics based on field measurements2022
- Author(s)
  Jun Inaoka, Ken’ichirou Kosugi, Naoya Masaoka, Tetsushi Itokazu, Kimihito Nakamura, Masamitsu Fujimoto
- Journal Title
  
  Hydrological Research Letters
  
  Volume: 16 Issue: 4 Pages: 80-86
- DOI
  10.3178/hrl.16.80
- ISSN
  1882-3416
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H00434
[Journal Article] Bedrock Groundwater Catchment Area Unveils Rainfall‐Runoff Processes in Headwater Basins2021
- Author(s)
  Masaoka N.、Kosugi K.、Fujimoto M.
- Journal Title
  
  Water Resources Research
  
  Volume: 57 Issue: 9 Pages: 0-0
- DOI
  10.1029/2021wr029888
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K06125, KAKENHI-PROJECT-20H00434, KAKENHI-PROJECT-19H02989
[Journal Article] Effects of geological structures on rainfall‐runoff responses in headwater catchments in a sedimentary rock mountain2020
- Author(s)
  Inaoka Jun、Kosugi Ken'ichirou、Masaoka Naoya、Itokazu Tetsushi、Nakamura Kimihito
- Journal Title
  
  Hydrological Processes
  
  Volume: 34 Issue: 26 Pages: 5567-5579
- DOI
  10.1002/hyp.13972
- NAID
  120007183806
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H00434
[Journal Article] Application of self-potential method for evaluating subsurface structure of potential sites for deep-seated landslides2019
- Author(s)
  山川陽祐, Gomez Christopher, 正岡直也, 小杉賢一朗
- Journal Title
  
  The Japanese Forest Society Congress
  
  Volume: 130 Issue: 0 Pages: 150
- DOI
  10.11519/jfsc.130.0_150
- NAID
  130007645155
- Year and Date
  2019-05-27
- Language
  Japanese
- Open Access
- Data Source
  KAKENHI-PROJECT-19H02989
[Journal Article] Improved evaporation method for the measurement of the hydraulic conductivity of unsaturated soil in the wet range2018
- Author(s)
  Naoya Masaoka, Ken'ichirou Kosugi
- Journal Title
  
  Journal of Hydrology
  
  Volume: 563 Pages: 242-250
- DOI
  10.1016/j.jhydrol.2018.06.005
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K15283
[Presentation] 堆積岩山地における基岩の透水性および保水性についての考察2023
- Author(s)
  正岡直也、青野友哉、岡本相大、小杉賢一朗
- Organizer
  日本森林学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] 野外土壌の体積含水率と圧力水頭を同時計測するT-TDRセンサーの開発と適用2023
- Author(s)
  法利祐香, 正岡直也, 小杉賢一朗
- Organizer
  令和5年度砂防学会研究発表会
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 山体基岩内の断層ガウジによる遮水構造の数値解析を用いた検討2023
- Author(s)
  岡本相大, 正岡直也, 小杉賢一朗
- Organizer
  令和5年度砂防学会研究発表会
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 山地流域における基岩内地下水流出機構の解明　‐数値シミュレーションを用いて‐2023
- Author(s)
  正岡直也、小杉賢一朗
- Organizer
  砂防学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] 森林における土壌透水性分布が斜面の水文過程に及ぼす影響2023
- Author(s)
  柳井鴻太郎、正岡直也、小杉賢一朗
- Organizer
  砂防学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] 野外土壌の体積含水率と圧力水頭を同時計測するT-TDRセンサーの開発と適用2023
- Author(s)
  法利祐香、正岡直也、小杉賢一朗
- Organizer
  砂防学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] スラグ試験を用いた基岩透水性分布の検討2023
- Author(s)
  青野友哉, 正岡直也, 小杉賢一朗
- Organizer
  令和5年度砂防学会研究発表会
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 森林斜面における原位置透水試験へのゲルフパーミアメータ法の適用2022
- Author(s)
  正岡直也、柳井鴻太郎、小杉賢一朗
- Organizer
  日本森林学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] 山体基岩の透水性分布が河川流出に及ぼす影響の検討2022
- Author(s)
  正岡直也, 小杉賢一朗
- Organizer
  令和4年度砂防学会研究発表会
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 山地源流域におけるストロンチウム安定同位体比を用いた基岩内地下水動態の把握2022
- Author(s)
  勝山正則, 滝澤遼, 新長千聖, 申基澈, 正岡直也, 小杉賢一朗
- Organizer
  日本地球惑星科学連合2022年大会
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 現地観測に基づいた堆積岩山地と花崗岩山地の降雨流出特性の比較2021
- Author(s)
  稲岡諄，小杉賢一朗，正岡直也，糸数哲，中村公人，藤本将光
- Organizer
  第133回日本森林学会大会，2022
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 改良型HYCYモデルを用いた山地源流域の降雨流出特性に関する考察2021
- Author(s)
  稲岡諄、小杉賢一朗、正岡直也、糸数哲、中村公人、藤本将光
- Organizer
  2021年度砂防学会研究発表会，2021
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 山地斜面における不均質な土壌透水性分布が排水能力に及ぼす影響2021
- Author(s)
  柳井鴻太郎、正岡直也、小杉賢一朗、藤本将光
- Organizer
  2021年度砂防学会研究発表会，2021
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 連続流出蒸発法（COFEM）を用いた森林土壌の水分特性・透水性の計測2021
- Author(s)
  正岡直也、小杉賢一朗
- Organizer
  砂防学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] 山地斜面における不均質な土壌透水性分布が排水能力に及ぼす影響2021
- Author(s)
  柳井鴻太郎、正岡直也、小杉賢一朗、藤本将光
- Organizer
  砂防学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] Comparison of forest soil hydraulic properties between different types of forests2021
- Author(s)
  Dingkang Xu, Naoya Masaoka, Tomoya Murakami, Ken'ichirou Kosugi, Yoshiko Kosugi
- Organizer
  水文・水資源学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] 亀裂のある山体基岩の模型実験による不飽和水文特性の測定2021
- Author(s)
  寺山祐司、正岡直也、小杉賢一朗
- Organizer
  2021年度砂防学会研究発表会，2021
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 断層構造をもつ付加体山地における基岩内地下水の流動特性2021
- Author(s)
  正岡直也、小杉賢一朗、谷知幸、松四雄騎、山川陽祐
- Organizer
  日本森林学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] 基岩面上の不均質な透水性分布と排水能力に関する一考察2021
- Author(s)
  柳井鴻太郎・正岡直也・小杉賢一朗・藤本将光
- Organizer
  第133回日本森林学会大会，2022
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 山地斜面における不均質な土壌透水性分布が排水能力に及ぼす影響2021
- Author(s)
  柳井鴻太郎、正岡直也、小杉賢一朗
- Organizer
  砂防学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] 断層構造をもつ付加体山地における基岩内地下水の流動特性2021
- Author(s)
  正岡直也, 小杉賢一朗, 谷知幸, 松四雄騎, 山川陽祐
- Organizer
  第133回日本森林学会大会，2022
- Data Source
  KAKENHI-PROJECT-20H00434
[Presentation] 谷壁急斜面における土壌水分動態の観測に基づく洪水流出機構の再検討2020
- Author(s)
  小島永裕・正岡直也・谷誠
- Organizer
  第131回日本森林学会大会
- Data Source
  KAKENHI-PROJECT-19K04632
[Presentation] 花崗岩山地源流域における基岩内地下水集水域と流出特性2020
- Author(s)
  正岡直也、小杉賢一朗、藤本将光
- Organizer
  日本森林学会
- Data Source
  KAKENHI-PROJECT-20K06125
[Presentation] 山地源流域における基岩内地下水面形状が水収支に及ぼす影響2019
- Author(s)
  正岡直也、小杉賢一朗、藤本将光
- Organizer
  日本森林学会大会
- Data Source
  KAKENHI-PROJECT-17K15283
[Presentation] 花崗岩山地源流域における流域界を越えた地下水流動の解析2019
- Author(s)
  正岡直也、小杉賢一朗、藤本将光
- Organizer
  砂防学会研究発表会
- Data Source
  KAKENHI-PROJECT-17K15283
[Presentation] 物理探査法を適用した地盤・地下水構造の実態解明に基づく深層崩壊発生危険度評価手法の開発2019
- Author(s)
  山川陽祐, 小杉賢一朗, 正岡直也
- Organizer
  砂防地すべり技術研究成果報告会
- Invited
- Data Source
  KAKENHI-PROJECT-19H02989
[Presentation] Monitoring of bedrock groundwater in intensively drilled wells for estimating the process of runoff generation in a headwater catchment2018
- Author(s)
  Naoya Masaoka, Ken'ichirou Kosugi, Masamitsu Fujimoto
- Organizer
  American Geophysical Union Fall Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K15283
[Presentation] 高密度観測データに基づく花崗岩山地の地下水水文過程に関する考察2018
- Author(s)
  正岡直也, 小杉賢一朗, 藤本将光
- Organizer
  日本森林学会
- Data Source
  KAKENHI-PROJECT-17K15283
[Presentation] 風化基岩層の不飽和水文特性計測の試み2017
- Author(s)
  正岡直也
- Organizer
  日本森林学会
- Data Source
  KAKENHI-PROJECT-17K15283

1. Yamakawa Yosuke (20611601)

# of Collaborated Projects: 2 results

# of Collaborated Products: 3 results
2. 佐山敬洋 (70402930)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
3. Kojima Nagahiro (00503624)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
4. 谷誠 (00314245)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
5. 小杉賢一朗 (30263130)

# of Collaborated Projects: 1 results

# of Collaborated Products: 14 results
6. 勝山正則 (40425426)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
7. 藤本将光 (60511508)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
8. 中谷加奈 (80613801)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 小杉緑子 (90293919)

# of Collaborated Projects: 1 results

# of Collaborated Products: 14 results
10. 堀田紀文 (00323478)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. ゴメスクリストファー (20800577)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 鄒青穎 (40750055)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 平岡真合乃 (10768427)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. 佐藤貴紀 (20755962)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Masaoka Naoya 正岡 直也

Research Projects

Research Products

Co-Researchers

Research on internal erosion of mountain slopes due to rainfall and improvement of drainage capacityPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Study on the spatial distribution of water flow path within the soil layer in mountainous hillslopesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

高精度土砂災害予測のための山体地下水を考慮した水文モデルの開発と展開手法の構築

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of a storm-runoff model based on the measurements of saturated-unsaturated flow on a hillslope.

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of a method for evaluating the risk of deep-seated landslides using geomorphological techniques and various sensing technologies

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Investigations of hydrological properties of forest soil and weathered bedrock layers by using improved evaporation methodPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Book] 水文・水資源ハンドブック 第二版 3.4.1項2022

Author(s)

Total Pages

Publisher

ISBN

Data Source

[Book] 砂防の観測の現場を訪ねて3 ～水の動きの不思議～基岩層を介した降雨流出プロセスの解明2022

Author(s)

Total Pages

Publisher

ISBN

Data Source

[Book] 砂防の観測の現場を訪ねて3 ～水の動きの不思議～深層崩壊メカニズムの解明をめざす2022

Author(s)

Total Pages

Publisher

ISBN

Data Source

[Journal Article] Effects of geological differences on rainfall–runoff characteristics based on field measurements2022

Author(s)

Journal Title

DOI

ISSN

Language

Data Source

[Journal Article] Bedrock Groundwater Catchment Area Unveils Rainfall‐Runoff Processes in Headwater Basins2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Effects of geological structures on rainfall‐runoff responses in headwater catchments in a sedimentary rock mountain2020

Author(s)

Journal Title

DOI

NAID

Data Source

[Journal Article] Application of self-potential method for evaluating subsurface structure of potential sites for deep-seated landslides2019

Author(s)

Journal Title

DOI

Masaoka Naoya 正岡直也

[Book] 水文・水資源ハンドブック第二版　3.4.1項2022

[Presentation] 山地流域における基岩内地下水流出機構の解明　‐数値シミュレーションを用いて‐2023