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TitleHigh resolution rapid revisits InSAR monitoring of surface deformation
AuthorSinghroy, V; Li, J; Charbonneau, F
SourceCanadian Journal of Remote Sensing vol. 41, issue 5, 2015 p. 458-472,
Alt SeriesEarth Sciences Sector, Contribution Series 20150446
PublisherInforma UK Limited
Mediapaper; on-line; digital
File formatpdf
ProvinceQuebec; Newfoundland and Labrador; Northwest Territories; Alberta
AreaThunder River; Mackay; Longlake; Danel's Harbour; Gascon
Subjectsremote sensing; radar imagery; satellite imagery; deformation; subsidence; landslides; steam injection; permafrost; RADARSAT Constellation Mission (RCM)
Illustrationslocation maps; tables; graphs; photographs; satellite images; diagrams
ProgramRemote Sensing Science
Released2016 02 05
AbstractThis paper provides temporal guidelines for the RADARSAT Constellation Mission (RCM) data acquisitions on several active high risk surface deformation sites in Canada. The RCM will be tasked by several high priority users and conflicts in acquisitions needed to be carefully planned. Monitoring the deformation process on several representative sites, we can target our 4 day InSAR acquisition plan for the future RCM. We provide examples of high-resolution (1-3m) InSAR measurements for monitoring high-risk landslides affecting strategic transportation and energy corridors, as well as surface deformation related to the steam injection process of extracting oil at the oil sands area. For all these sites, we recommend specific temporal acquisition parameters for different deformation behaviour related to different landslide triggering mechanisms and oil extraction. The high resolution InSAR images are effective in characterizing differential motion within these low velocity landslides. Our results show that rapid revisit InSAR acquisitions are required during the combined wet spring and storm events for coastal landslides. Highly fractured slow moving landslides along railway corridors require InSAR acquisitions throughout the year. Permafrost triggered landslides affecting pipeline corridors require acquisitions during the peak summer melting season. Deformation triggered by steam injection over the oil sands requires high resolution constant rapid revisit monitoring during the steaming and extraction periods.
Summary(Plain Language Summary, not published)
There are many types of geological triggers and conditions that produce surface deformation related to high risk landslides and steam injection for oil extraction. This paper shows that the monitoring and understanding of these deformations is possible with high frequency satellite images and should be enhanced with Canada's upcoming RADARSAT Constellation Mission (RCM). This paper also provides temporal guidelines and recommendations for future users interested in optimally monitoring several active high risk surface deformation sites in Canada using the RCM.

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