Geophysics and natural risks: instruments and principles of data analysis
Section outline
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Hybrid
Department of Earth Sciences, University of Pisa, Via Santa Maria, 53, 56126 Pisa PI - The link is temporarily unavailable
27 January 202528 January 2025
29 January 2025
30 January 2025
20 (in person)
Ilaria Catapano (CNR-IREA), Stefano Perna (University of Partheope, Napoli), Vincenzo Serlenga (CNR-IMAA), Sebastian Uhlemann (British Geological Survay)
Learning the basic concepts about the use of airborne synthetic aperture radar (SAR) systems and introduction to strategies for acquiring, processing and integrating data acquired by in situ geophysical instrumentations, with a special focus on ground penetrating radar (GPR), electrical resistivity, electromagnetic systems and passive seismic methods, and hydrogeophysical monitoring methodologies.
The students will learn notions regarding airborne based SAR imaging and interferometry, microwave tomography enhanced GPR, as well as gain an overview on the use of ground-based geophysical characterization and monitoring techniques to image subsurface properties and their evolution with regards to natural hazards.
Therefore, the students will gather skills about the interpretation of the images provided by remote and in situ electromagnetic and seismic sensors in the frame of natural risks assessment.
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- Microwave Tomography enhanced GPR
- Airborne SAR interferometry
- Petrophysical relationships linking geophysical and hydrogeomechanical parameters
- Ground and airborne geophysical characterization
- Geophysical monitoring: principles and applications
- Machine Learning for exploiting and assimilating environmental data
- The Ambient Seismic Noise for subsurface characterization
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Microwave Tomography enhanced GPR: Mathematical models of signal propagation in homogeneous and two‐layered media; Forward and Inverse Scattering problems, The Born Approximation; the truncated Singular Value Decomposition method, analysis of the reconstruction capabilities; examples of data processing.
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Airborne SAR interferometry: Acquisition geometry and operational issues; raw data formation;
SAR transfer function; geometric distortions in SAR images; SAR interferometry; differential SAR
Interferometry; SAR Polarimetry; effects of uncompensated motion errors; time domain focusing; real‐
world examples. -
Petrophysical relationships linking geophysical and hydrogeomechanical properties
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Geophysical monitoring: principles and applications
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Machine Learning for exploiting and assimilating environmental data
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The Ambient Seismic Noise for subsurface characterization