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The Correlation of Spatial Distribution between Surface Deformation and Landslides by SBAS-InSAR and Spatial Analysis in Longnan Region, China

Auteur(s):




Médium: article de revue
Langue(s): en 
Publié dans: The Open Civil Engineering Journal, , n. 1, v. 9
Page(s): 867-876
DOI: 10.2174/1874149501509010867
Abstrait:

We use interferometric synthetic aperture radar (InSAR) time-series analysis of Envisat ASAR data to reveal the correlation of distribution between surface deformation and landslides in western China. The results of SBAS-InSAR revealed that the velocity of surface deformation is between -18.6mm/year to 26.8mm/year. The landslides data which we extracted from SPOT 5 image and investigated in field were correlated with altitude, lithology, slope, degree, land-use, fault, NDVI and distance to river. We found that the landslides mainly distribute on 13°~41° slope degree, 1200m~2000m altitude, the strong human activity, the poor vegetation covered, near the river and fault, underlain medium thickness limestone and thin-layered siltstone and mud stone. Using the landslides distribution features, landslides will be identified from the results of surface deformation and landslides susceptibility will be assessed. This method can help local government rapidly monitor landslides and assess landslides susceptibility on large scale.

Copyright: © 2016 Xue Yating et al.
License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution 4.0 (CC-BY 4.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original.

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  • Reference-ID
    10175490
  • Publié(e) le:
    30.12.2018
  • Modifié(e) le:
    02.06.2021