Day 4

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Paper title Earth Observation Service Continuity
Authors
  1. Patrick Plourde Canadian Space Agency Speaker
  2. Eric Dubuc
  3. Genevieve Houde Canadian Space Agency
  4. Daniel De Lisle Canadian Space Agency
Form of presentation Poster
Topics
  • B6. National missions TPM
    • B6.01 National EO satellite missions
Abstract text The Government of Canada (GC) uses multiple sources of data to provide services to Canadians. Given the geographic size of Canada and the need for data collection beyond our landmass, this can often be most efficiently accomplished through Earth Observation. The most critical of these are the RADARSAT series of satellites. Using a powerful synthetic aperture radar (SAR) to collect digital imagery, the RADARSAT series of satellites can “see” the Earth day or night and in any weather condition. The next generation solution is currently being investigated under the Earth Observation Service Continuity (EOSC) program. Due to the wide range of user’s needs, the EOSC initiative considers a broad source of input data including free and open data, commercial purchase of data, international cooperation and a dedicated SAR system. This paper will look at some initial analysis on undertaken under EOSC.

As a first step, a list of User Needs has been collected from various Canadian Federal User Departments. The list of user needs has been consolidate under the Harmonized User Need document. A few key consideration could be extracted from this list of User Needs. The area and the coverage frequency increased compared to the RCM requirements and capabilities. Established applications such as ice monitoring would benefits from both an increase in the coverage frequency and resolution. Even for these established applications, gaps remains to measure some parameters of high interest such as ice thickness. Finally, the document highlight the importance of the access to multi-frequency data for several needs.

The second step was to perform a series of option analysis studies with eight industrial partners to ensure a wide coverage of the potential solution that could satisfied the complex set of user needs. Although no specific solution has been selected at this stage, the studies generally pointed to some extend toward some similar findings. A dedicated C-Band resource will be needed to meet the User Needs including some form of multi-aperture/digital beamforming capability will be required to meet the swath and resolution requirements. Challenges remains to simultaneously meet all User Needs as a broad range of frequency, polarization, coverage and resolution is required often conflicting over similar or adjacent AOI. Free and open, commercial data and international cooperation with other existing system are key to respond to these User Needs while limiting the overall system complexity and cost.

Targeted technology development activities are being to address item of lower technology readiness including enabling technologies for multi-aperture/digital beamforming antenna but also ground segment technology development to provide a better integrated planning of the dedicated EOSC resources taking into consideration all available external sources of data.