GEOSCAN Search Results: Fastlink

GEOSCAN Menu


TitleDInSAR products and applications for the RADARSAT Constellation Mission
DownloadDownloads
AuthorSamsonov, S V; Feng, W; Short, N
SourceGeomatics Canada, Open File 37, 2017, 19 pages, https://doi.org/10.4095/305958 (Open Access)
Year2017
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
File formatpdf
Subjectsgeophysics; tectonics; surficial geology/geomorphology; remote sensing; satellites; satellite imagery; radar methods; mapping techniques; deformation; glaciology; glaciers; landslides; RADARSAT Constellation Mission; DInSAR; Differential Interferometric Synthetic Aperture Radar; methodology; change detection; monitoring; geological hazards; ice caps; decorrelation; interferometric coherence; offset-tracking; Multiple Aperture Interferometry; multi-temporal DInSAR; polarization
Illustrationsschematic representations; tables
ProgramMethodology, Remote Sensing Science
Released2017 10 10
AbstractThe Canadian RADARSAT Constellation Mission (RCM) is scheduled for launch in the second half of 2018, to support primarily maritime surveillance (sea ice, surface wind, oil pollution and ship monitoring), disaster management (mitigation, warning, response and recovery), and ecosystem monitoring (agriculture, wetlands, forestry and coastal change). The RCM consists of three C-band Synthetic Aperture Radar (SAR) satellites, equally spaced in a common orbit, providing rapid revisit capability. The RCM offers a selection of beam modes that vary in terms of spatial resolution, coverage, polarization and noise floor. The constellation orbit and beam mode options are sufficient to provide daily imaging opportunities of Canadian territories and Differential Interferometric Synthetic Aperture Radar (DInSAR) acquisitions with four days' revisit time. This new source of SAR data will strengthen operational applications that require a continuous stream of data.
In Canada and around the world, DInSAR is regularly used for detection and monitoring of ground deformation (e.g. uplift, subsidence and horizontal motion). At Natural Resources Canada (NRCan), DInSAR derived information supports diverse activities such as detecting terrain instability in permafrost regions, monitoring glacier and ice cap dynamics, monitoring landslide risk sites, and tracking surface deformation related to bitumen extraction. In partnership with the Canadian Space Agency (CSA), the Canada Centre for Mapping and Earth Observation (CCMEO) at NRCan is developing an automated system for generating standard and advanced deformation products by means of DInSAR from data acquired by RADARSAT-2 and RCM satellites. This processing system consists of software and hardware components and is capable of providing non-expert users with on-demand change detection and deformation products computed from the SAR data. This system will allow scientists and resource managers to efficiently and effectively extract ground displacement information from the thousands of RCM acquisitions collected annually during its mission life.
Summary(Plain Language Summary, not published)
The RADARSAT Constellation Mission (RCM) is expected for launch in 2018. In partnership with the Canadian Space Agency (CSA), the Canada Centre for Mapping and Earth Observation Centre (CCMEO), Natural Resources Canada, is developing an automated system for generating standard and advanced deformation products by means of Interferometric Synthetic Aperture Radar (InSAR) data acquired by RADARSAT-2 and RCM data. The system will provide non-expert users on-demand change detection and deformation products computed from RCM imagery. Scientists and managers will be able to analyze time series of ground deformation from thousands of images collected annually. In this report, we present interferometry methods and products targeted in the system.
GEOSCAN ID305958