Nagai Masahiko 長井正彦

… Alternative Names

長井正彦ナガイマサヒコ

NAGAI Masahiko 長井正彦

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Researcher Number	20401309
Other IDs
Affiliation (Current)	2025: 山口大学, 大学研究推進機構 , 教授
Affiliation (based on the past Project Information) *help	2020 – 2023: 山口大学, 大学院創成科学研究科, 教授 2019: 山口大学, 大学院創成科学研究科, 准教授 2017: 山口大学, 大学院創成科学研究科, 准教授 2016: 山口大学, 創成科学研究科, 准教授 2014: 東京大学, 空間情報科学研究センター … More 2010: The University of Tokyo, その他 2008 – 2009: The University of Tokyo, 地球観測データ統融合連携研究機構, 特任助教 2006: 東大 Less
Review Section/Research Field	Principal Investigator Civil engineering project/Traffic engineering / 交通工学・国土計画 Except Principal Investigator Medium-sized Section 25:Social systems engineering, safety engineering, disaster prevention engineering, and related fields / Medium-sized Section 22:Civil engineering and related fields / Social systems engineering/Safety system
Keywords	Principal Investigator 測量・リモートセンシング / 地理情報システム（GIS） / 地理情報システム（GIS / 準天頂衛星衛星 / Google Street View / 測位シミュレーション / 画像処理 / 準天頂衛星 / GNSS / 衛星測位 … More / リアルタイム / センサーネットワーク / 災害観測 / マッピング / UAV … More Except Principal Investigator リモートセンシング / 年代測定 / 土石流 / 重力探査 / 切迫度 / 土砂堆積速度 / 発生サイクル / 地盤履歴 / サンプリング / 土砂洪水氾濫 / 災害履歴 / リスク / 災害史 / 豪雨 / 歴史資料 / 発生頻度 / リスク評価 / 遺跡 / 地形解析 / 周期性 / 古文書 / 土砂・洪水氾濫 / 統合システム / 洪水 / センサネットワーク / Open-FS / Twitter / SOS / OGC Web Service / 無人飛行機 / 洪水モニタリング / フィールドセンサネットワーク Less

Validation of a model for calculating the imminence of a sediment disaster based on the recurrence cycle of debris flows and the rate of deposition of unstable sediments
- Principal Investigator
  
  鈴木素之
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Challenging Research (Exploratory)
- Review Section
  
  Medium-sized Section 25:Social systems engineering, safety engineering, disaster prevention engineering, and related fields
- Research Institution
  Yamaguchi University
Elucidation of millennium inundation of flood water and debris from the viewpoint of time-related disaster prevention study integrated by geotechnical history and disaster tradition
- Principal Investigator
  
  Suzuki Motoyuki
- Project Period (FY)
  2019 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 22:Civil engineering and related fields
- Research Institution
  Yamaguchi University
Development of GNSS Availability in Urban Environments Using by Street View Images and Evaluation of QZSS in UrbanPrincipal Investigator
- Principal Investigator
  
  Nagai Masahiko
- Project Period (FY)
  2016 – 2017
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Civil engineering project/Traffic engineering
- Research Institution
  Yamaguchi University
Dynamic Deployment of Field Sensors and UAV observation for Integrated Flood Monitoring
- Principal Investigator
  
  HONDA Kiyoshi
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Social systems engineering/Safety system
- Research Institution
  Chubu University
小型ラジコンヘリによる災害マッピングシステムPrincipal Investigator
- Principal Investigator
  
  長井正彦
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Civil engineering project/Traffic engineering
- Research Institution
  The University of Tokyo
無人ヘリコプター搭載型災害計測システムの開発研究Principal Investigator
- Principal Investigator
  
  長井正彦
- Project Period (FY)
  2006
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  交通工学・国土計画
- Research Institution
  The University of Tokyo

All 2023 2022 2020 2017 2016 2014 2009 2008 Other

All Journal Article Presentation

[Journal Article] Simulation of GNSS Availability in Urban Environments Using a Panoramic Image Dataset2017
- Author(s)
  Tongleamnak Sakpod、Nagai Masahiko
- Journal Title
  
  International Journal of Navigation and Observation
  
  Volume: 2017 Pages: 1-12
- DOI
  10.1155/2017/8047158
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K14316
[Journal Article] Field Touch; an innovative agriculture decision support by multi-scale sensor platforms2014
- Author(s)
  HONDA Kiyoshi, A. Yui, A. Ines, Rassarin Ch., A. Witayangkurn, H. Nagai, J Miyamoto
- Journal Title
  
  IEEE Xplore Digital Library, Global Conference(SRII), 2014 Annual SRII (Service Research & Innovation Institute)
  
  Volume: INSPEC 14529042 Pages: 228-229
- DOI
  10.1109/srii.2014.39
- Data Source
  KAKENHI-PROJECT-24510238
[Journal Article] 無人ヘリコプターによる河川環境モニタリング手法の開発2009
- Author(s)
  長井正彦, 柴崎亮介, アーメッドアーメッド
- Journal Title
  
  水文・水資源学会誌 2
  
  Pages: 401-408
- NAID
  10025316844
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560486
[Journal Article] 小特集UAV技術と利用の最前線:センサ統合によるUAV搭載型マッピングシステム2009
- Author(s)
  長井正彦, 柴崎亮介
- Journal Title
  
  写真測量とリモートセンシング 5
  
  Pages: 260-265
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560486
[Presentation] Slope Monitoring by DInSAR and Assessment of Potential Landslide Risk by Spatial Data2023
- Author(s)
  Watari. H., Nagai, M.
- Organizer
  The 44th Asian Conference on Remote Sensing (ACRS2023)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H00785
[Presentation] 差分干渉 SAR 解析を用いた斜面監視及び空間解析による潜在的土砂災害危険評価2022
- Author(s)
  和田里花, 長井正彦, 江口毅
- Organizer
  日本リモートセンシング学会第73回（令和4年度秋季）学術講演会
- Data Source
  KAKENHI-PROJECT-22K18871
[Presentation] 干渉 SAR 解析による土砂災害前後の地表面変化の監視手法に関する基礎研究2020
- Author(s)
  和田里花, 長井正彦
- Organizer
  日本写真測量学会令和2年度秋期学術講演会
- Data Source
  KAKENHI-PROJECT-19H00785
[Presentation] Sediment Budget Analysis by Long-term Differential InSAR in Hiroshima, Oct. 20202020
- Author(s)
  Hana Watari, Masahiko Nagai
- Organizer
  The 41st Asian Conference on Remote Sensing
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H00785
[Presentation] A Simulation for GNSS Utilization and DEM Construction in Urban2017
- Author(s)
  Masahiko NAGAI, Sakpod TONGLEAMNAK, Zahid WANI
- Organizer
  宇宙技術および科学の国際シンポジウム(ISTS)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K14316
[Presentation] Simulation for GNSS Utilization and Application in Urban Environment2016
- Author(s)
  Masahiko Nagai
- Organizer
  Multi-GNSS Asia (MGA) Conference
- Place of Presentation
  Manila, Philippines
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K14316
[Presentation] Construction of Precise Urban DEM by RTK-GPS for Multi Scale Flood Monitoring2014
- Author(s)
  Masahiko NAGAI, Zahid Mushtaq WANI, Kiyoshi HONDA, Apichon WITAYANGKURN, Saurav RANJIT, Ashik RAJBHANDARI
- Organizer
  The 6th Asia Oceania Regional Workshop on GNSS
- Place of Presentation
  Phuket, Thaiand
- Year and Date
  2014-10-11
- Data Source
  KAKENHI-PROJECT-24510238
[Presentation] GNSS Utilization for Multi Scale Flood Monitoring2014
- Author(s)
  Masahiko NAGAI, Zahid Mushtaq WANI, Kiyoshi HONDA, Apichon WITAYANGKURN, Saurav RANJIT, Sakpod TONGLEAMNAK, Ashik RAJBHANDAR
- Organizer
  The 6th Asia Oceania Regional Workshop on GNSS
- Place of Presentation
  Phuket, Thaiand
- Year and Date
  2014-10-11
- Data Source
  KAKENHI-PROJECT-24510238
[Presentation] UAV-Based SensorWeb Monitoring System2009
- Author(s)
  Masahiko NAGAI, Apichon WITAYANGKURN, Aadit SHRESTHA, Rassarin CHINNACHODTEERANUN, Kiyoshi HONDA, Ryosuke SHIBASAK
- Organizer
  Asian Conference on Remote Sensing
- Place of Presentation
  中国北京
- Year and Date
  2009-10-22
- Data Source
  KAKENHI-PROJECT-20560486
[Presentation] UAV-Based Mapping System by Multi-Sensor Integration2008
- Author(s)
  長井正彦
- Organizer
  29th Asian Conference on Remote Sensing
- Place of Presentation
  スリランカコロンボ
- Year and Date
  2008-11-11
- Data Source
  KAKENHI-PROJECT-20560486
[Presentation] UAV搭載型マルチCCDカメラによる河川環境モニタリングに関する研究2008
- Author(s)
  長井正彦
- Organizer
  日本写真測量学会平成20年度秋季学術講演会
- Place of Presentation
  東北大学
- Year and Date
  2008-11-28
- Data Source
  KAKENHI-PROJECT-20560486
[Presentation] UAVベースの災害観測システム開発2008
- Author(s)
  長井正彦
- Organizer
  第18回生研フォーラム
- Place of Presentation
  東京大学
- Year and Date
  2008-03-09
- Data Source
  KAKENHI-PROJECT-20560486
[Presentation] Cloud-based Sensor Network System with low-power consumption fieldserver for environment, agriculture and aquaculture farm monitoring”
- Author(s)
  Apichon WITAYANGKURN, Kiyoshi HONDA, Rassarin CHINNACHODTEERANUN, Aadit SHRESTHA, Masahiko NAGAI
- Organizer
  The 20th Asia & Pacific Conference on Communications
- Place of Presentation
  Pattaya, Thailand
- Year and Date
  2014-10-01 – 2014-10-03
- Invited
- Data Source
  KAKENHI-PROJECT-24510238

1. Suzuki Motoyuki (00304494)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. 田口岳志 (00452839)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
3. 楮原京子 (10510232)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. HONDA Kiyoshi (40181549)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
5. HIRAFUJI Masayuki (00370495)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 川島尚宗 (10650674)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 赤松良久 (30448584)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 太田岳洋 (50425998)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. SUGIURA Ryo

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. APICHON Witayangkurn

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
11. RASSARIN Chinnachodteeranun

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
12. ASHIK Rajbhandari

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results

Nagai Masahiko 長井 正彦

長井 正彦 ナガイ マサヒコ

NAGAI Masahiko 長井 正彦

Research Projects

Research Products

Co-Researchers

Validation of a model for calculating the imminence of a sediment disaster based on the recurrence cycle of debris flows and the rate of deposition of unstable sediments

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Elucidation of millennium inundation of flood water and debris from the viewpoint of time-related disaster prevention study integrated by geotechnical history and disaster tradition

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of GNSS Availability in Urban Environments Using by Street View Images and Evaluation of QZSS in UrbanPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Dynamic Deployment of Field Sensors and UAV observation for Integrated Flood Monitoring

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

小型ラジコンヘリによる災害マッピングシステムPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

無人ヘリコプター搭載型災害計測システムの開発研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Simulation of GNSS Availability in Urban Environments Using a Panoramic Image Dataset2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Field Touch; an innovative agriculture decision support by multi-scale sensor platforms2014

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 無人ヘリコプターによる河川環境モニタリング手法の開発2009

Author(s)

Journal Title

NAID

Data Source

[Journal Article] 小特集UAV技術と利用の最前線:センサ統合によるUAV搭載型マッピングシステム2009

Author(s)

Journal Title

Data Source

[Presentation] Slope Monitoring by DInSAR and Assessment of Potential Landslide Risk by Spatial Data2023

Author(s)

Organizer

Data Source

[Presentation] 差分干渉 SAR 解析を用いた斜面監視及び空間解析による潜在的土砂災害危険評価2022

Author(s)

Organizer

Data Source

[Presentation] 干渉 SAR 解析による土砂災害前後の地表面変化の監視手法に関する基礎研究2020

Author(s)

Organizer

Data Source

[Presentation] Sediment Budget Analysis by Long-term Differential InSAR in Hiroshima, Oct. 20202020

Author(s)

Organizer

Data Source

[Presentation] A Simulation for GNSS Utilization and DEM Construction in Urban2017

Author(s)

Organizer

Nagai Masahiko 長井正彦

長井正彦ナガイマサヒコ

NAGAI Masahiko 長井正彦