Monitoring of geohazards using differential interferometric satellite aperture radar in Australia

  • Birch Teodosio
  • , P.L.P. Wasantha
  • , Ehsan Yaghoubi
  • , Maurice Guerrieri
  • , Sam Fragomeni
  • , Rudi C. van Staden

Research output: Contribution to specialist publicationArticle

Abstract

Interferometric Synthetic Aperture Radar (InSAR) came into practical use as a geohazard monitoring tool in the 1990s. The uptake of this remote sensing technique however is geographically varying, and Australia has been one of many continents not fully utilizing the available InSAR data. As a result, limited knowledge exists on the application of InSAR data to obtain insights and benefits in geohazard risk monitoring and management. Due to the said limitation, this research carried out a concise technical background study and investigated a suite of case studies to demonstrate the potential for geohazard monitoring and assessment in Australia using InSAR. The differential InSAR workflow was applied to sites that experienced heaving and subsiding of the ground surface, mining, earthquake, landslides, and tunnelling in West Metro Melbourne (VIC), Musgrave (SA), Crinum mine (QLD), Pelham (TAS), Lake Muir (WA), and Sydney (NSW). The results of the Differential InSAR analysis resulted in acceptable ground movement and deformation estimates when compared with measured field data. Future opportunities related to new applications of the InSAR technique on geohazard reduction considering climate change contributions and probable coupling with artificial intelligence techniques were also discussed. This research has formed a conducive and scientific learning medium, which may encourage the growth of multidisciplinary research combining the fields of remote sensing and geotechnical engineering to investigate the impact of geohazards.

Original languageEnglish
Pages3769-3802
Number of pages34
Volume43
Specialist publicationInternational Journal of Remote Sensing
Publication statusPublished - 19 May 2022
Externally publishedYes

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