Assessing the potential of interferometric SAR for monitoring linear transportation infrastructure: case studies from Eastern Ontario

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Creator: 

Oliver, Peter Alexander

Date: 

2017

Abstract: 

Two RADARSAT-2 Spotlight (SLA24 and SLA74), and one Sentinel-1A (IW) SAR datasets are used to assess the potential of InSAR for monitoring linear transportation infrastructure subject to geohazards. A variety of case studies in Cornwall, Ontario are examined. An InSAR processing sequence was established for the RADARSAT-2 datasets; 19 SLA24 and 15 SLA74 images were used to create time-series deformation maps of Cornwall spanning March 2015 to September 2016. The noise floors were ± 1.5 cm and ± 1.0 cm, respectively. Phase unwrapping errors, atmospheric path delay, and limited SAR data were identified as the largest contributors to noise. The InSAR processing sequence was adapted to the Sentinel-1A dataset, and used to create unwrapped differential interferograms. A discussion of the phase components of these interferograms is presented. Large SAR datasets, small incidence angles, moderate image resolution, and 6-12 day revisit periods are recommended for monitoring linear transportation infrastructure.

Subject: 

Remote Sensing

Language: 

English

Publisher: 

Carleton University

Thesis Degree Name: 

Master of Science: 
M.Sc.

Thesis Degree Level: 

Master's

Thesis Degree Discipline: 

Earth Sciences

Parent Collection: 

Theses and Dissertations

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