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Estimating displacement rate of reinforced slope using ALOS-2/PALSAR-2 time series data

Research Project

Project/Area Number 18K04398
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 22050:Civil engineering plan and transportation engineering-related
Research InstitutionNihon University

Principal Investigator

ASAKA Tomohito  日本大学, 生産工学部, 准教授 (60514164)

Co-Investigator(Kenkyū-buntansha) 野中 崇志  日本大学, 生産工学部, 教授 (20556336)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsL-band SAR / 干渉SAR / 三次元レーザースキャナ / ネットワーク型RTK-GNSS / 電子基準点 / 空間内挿 / 局所入射角 / レイオーバー / レーダーシャドウ / InSAR / 三次元点群データ / 三次元計測 / ALOS-2/PALSAR-2 / グリーン関数スプライン / 合成開口レーダー / GNSS測量
Outline of Final Research Achievements

The Advanced Land Observing Satellite-2 (ALOS-2, "DAICHI-2") is a follow-on mission from the ALOS Daichi". Phased Array L-Band Synthetic Aperture Radar -2 (PALSAR-2) aboard ALOS-2 enables land observation rain or shine and day or night. Our research demonstrates the potential of PALSAR-2 to estimate the displacement of reinforced slopes in the southern part of Chiba Prefecture, which was selected as the study site, and validated the method through a field survey. The mainly results of this study include that there are the geometric characteristics of reinforced slopes that can be observed from PALSAR-2 and the displacement estimated from PALSA-2 approximates to the results of field survey.

Academic Significance and Societal Importance of the Research Achievements

大規模な崩壊を起こした際に社会的な影響の大きい「特定道路土工構造物」は、5年に1度を目処に点検することが定められている。本研究では、地球観測衛星に搭載された合成開口レーダーを使って長大法面の変位量を精度よく推定する手法について検討し、定期的な実施した現地調査結果から、合成開口レーダーは点検における一次スクリーニングに利用できる可能性を見出した。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] ALOS-2/PALSAR-2による道路法面の変位量推定2020

    • Author(s)
      朝香 智仁,野中 崇志
    • Journal Title

      応用測量論文集

      Volume: 31 Pages: 25-33

    • NAID

      40022293102

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Estimation of Reinforced Slope Dynamics Using ALOS-2/ PALSAR-2 and Validation by Terrestrial Laser Scanner2020

    • Author(s)
      Asaka Tomohito、Nonaka Takashi、Iwashita Keishi、Uchida Yuki、Sugimura Toshiro
    • Journal Title

      IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium

      Volume: - Pages: 4963-4966

    • DOI

      10.1109/igarss39084.2020.9323707

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Geometric condition of reinforced slopes for InSAR analysis using ALOS-2/PALSAR-2 data2022

    • Author(s)
      Tomohito ASAKA and Takashi NONAKA
    • Organizer
      33rd International Symposium on Space Technology and Science
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ALOS-2/PALSAR-2を利用した道路法面の変位量推定に関する研究2021

    • Author(s)
      田中政嗣、朝香智仁、野中崇志、杉村俊郎
    • Organizer
      令和3年度土木学会全国大会 年次学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 特定土工点検を目的としたTLSとUAVの三次元点群データの比較2021

    • Author(s)
      朝香智仁、田中政嗣、野中崇志、杉村俊郎、岩下圭之
    • Organizer
      (一社)日本リモートセンシング学会 第71回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 地上型レーザスキャナを用いた道路法面の動態調査に関する研究2020

    • Author(s)
      田中 政嗣、朝香 智仁、杉村 俊郎、野中 崇志
    • Organizer
      令和2年度土木学会全国大会第75回年次学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Evaluation of Reinforced Slope Dynamics using ALOS-2/PALSAR-22019

    • Author(s)
      Tomohito Asaka
    • Organizer
      The International Geoscience and Remote Sensing Symposium 2019 (IGARSS 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ALOS-2/PALSAR-2データを用いた道路法面のモニタリングに関する一考察2019

    • Author(s)
      朝香智仁、野中崇志
    • Organizer
      土木学会 第46回関東支部技術研究発表会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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