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Urs Wegmüller Gamma Remote Sensing AG, Gümligen, Switzerland gamma-rs.ch

Monitoring Alpine Transportation Infrastructures Using Space Techniques. Urs Wegmüller Gamma Remote Sensing AG, Gümligen, Switzerland http://www.gamma-rs.ch. Monitoring Alpine Transportation Infrastructures Using Space Techniques. Partners: Gamma Remote Sensing AG, Gümligen, Switzerland

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Urs Wegmüller Gamma Remote Sensing AG, Gümligen, Switzerland gamma-rs.ch

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  1. Monitoring Alpine Transportation Infrastructures Using Space Techniques Urs Wegmüller Gamma Remote Sensing AG, Gümligen, Switzerland http://www.gamma-rs.ch

  2. Monitoring Alpine Transportation Infrastructures Using Space Techniques Partners: Gamma Remote Sensing AG, Gümligen, Switzerland Institute of Navigation, Graz University of Technology, Austria Users: Operators of alpine transportation infrastructures (railway companies, institutes representing the national roads, companies from the energy sector) and private geological offices→ SBB, OeBB, ASFINAG, BAFU, K&H Sponsor: European Space Agency (ESA - ESTEC) Integrated Applications Promotion Programme (IAP) KO date: 26 November 2012

  3. Needs and requirements for space-based services • Densely inhabited Alps, large transportation networks • Alpine natural hazards with severe human and economic consequences (rockfalls and landslides) • Railway and road operators responsible for safe operation • Infrastructure operators require: • Wide-area information providing probabilities and intensities of potential hazards endangering their infrastructure ( satellite based deformation information) • In case of imminent danger in a sensible section of the network more detailed measurements are required ( terrestrial deformation monitoring) • In case of emergency an early warning system is required

  4. Scope of the feasibility project Our proposed solution is aiming at supporting users from the transportation infrastructure in the regional assessment of landslide hazard, the local monitoring of critical unstable slopes and the ground deformation monitoring in near real time with the integration of the space techniques radar interferometry (satellite and terrestrial) and GPS/GNSS. The main information to be provided is ground motion, which can include motion of the transportation infrastructure (railway, roads), motion of rocks or terrain slopes above transportation infrastructure, and motion caused by tunneling.

  5. Elements of service offer Satellite based deformation maps using differential interferometric SAR (DINSAR) and persistent scatterer interferometry (PSI) GAMMA) Satellite based deformation monitoring (GAMMA) Terrestrial interferometric radar measurements (GAMMA) GPS/GNSS Solutions (INAS TU-Graz)

  6. Deformation mapping over large areas Image width is 10 km Gotthard railway mm/year 0.0 -10.0

  7. Motion of transportation infrastructures ENVISAT: 2002-2010 TerraSAR-X: 2008-2012 mm/year mm/year 0.0 -5.0 0.0 -5.0

  8. Motion caused by tunneling ERS-1/2 ENVISAT Image width is 15 km _ + 23º from nadir mm/year 1992-2000 0.0 -10.0 2004-2010

  9. Gamma Portable Radar Interferometer 23 March 2010 → 9 August 2011 0 mm 5

  10. Main fields of research SatellitebasedPositioning • GNSS (GPS, GLONASS and Galileo) • Signal generation • Software basedreceiver • GNSS investigations • Precise Point Positioning • Development ofappropriatealgorithms (real time PPP) • Surveying / geodataacquisition • Satellite-basedmethods • Combinationwithterrestrialmethodsandothersensors • Main project:Measurement andprocessingof a geodeticnetworkfortheKoralmrailway tunnel www.inas.tugraz.at

  11. Proposed Proof-of-Concept: Wassen Above left: Google EarthAbove right: ENVISAT PSI2004-2010Below left: Cosmo-SkyMed 2010.09.09-2010.10.11Below right: ALOS PALSAR 2006.09.13-2006.10.29

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