Estimation of shallow landslide risk in a mountainous area using a single X-band multi-parameter radar and C-band radars

DOI

Bibliographic Information

Other Title
  • 単一のXバンドMPレーダーとCバンドレーダーを活用した山地域における土砂災害危険度推定

Description

We used rainfall information obtained using a single X-band multi-parameter (UY) radar and C-band radars to estimate the risk of shallow landslides. Although rainfall data derived from the UY radar were underestimated compared with the rain gauge data 20-30 km further from the radar site, the correlation coefficient between two measurement methods was high. According to this comparison, we divided the UY radar data into a moving average within a 2.5 km mesh and ratio of rainfall to the moving average. The moving average was then corrected by the C-band radar information and combined with the ratios. The root mean-square error, mean error, and correlation coefficients significantly improved with the combined rainfall data. The risk of shallow landslides was accurately estimated using the soil water index calculated with a tank model and the combined hourly rainfall data for an area where shallow landslides have occurred.

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Details 詳細情報について

  • CRID
    1390001288122732800
  • NII Article ID
    130007593994
  • DOI
    10.24762/jndsj.37.3_295
  • ISSN
    24341037
    02866021
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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