M1 - Geological Hazards - Observations, Measurements, Modeling

Introduction to risk and vulnerability management. Definition of key concepts, case studies in Thailand and Sommières. 

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This module aims to provide the basics of geophysical imaging of geological formations, both near the surface and at the lithosphere scale. We will focus here on seismological methods (volume and surface wave tomography, receiver functions, ambient noise), gravimetry, and magnetotellurics. We will also present the basics of seismic reflection (acquisition and processing). A case study seen in practical work will highlight the importance of combining these methods to best describe the environment and its properties, particularly in terms of fluids.

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This module aims to provide the basics of positioning and topographic mapping principles. Basic knowledge of GNSS and laser positioning methods is detailed in class and then used in the field and during practical work. Finally, a project assignment allows students to apply the practical and theoretical knowledge acquired at the beginning of the module and, above all, to better understand the complementarity and accuracy of geodetic measurements.

Course content:
- Introduction to ground geodesy and space geodesy
- Reference frames in geodesy
- Traditional ground geodesy tools
- The GNSS positioning system
- Applications of geodesy (active tectonics, landslides, anthropogenic deformation, etc.)
- Topographic measurement (DTM, LIDAR, etc.)

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