Abstract
The 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.
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