Syllabus
* Global EM induction
EM induction equation in spherical coordinates, 1-D and 2-D problems, semi-analytical solution for nested-spheres model. Use of satellite data in induction studies. Magnetic signals generated by tides and ocean flows.
* Magnetotellurics
Equation of EM induction, TE and TM modes. Electrical conductivity of Earth materials. External fields. Transfer functions: from theory to practical calculations. Distortions of MT data. Forward and inverse modeling. Instrumentation. Applications in prospection.
* Electrical conductivity
Conductivity mechanisms, pressure and temperature dependence, conductivity of multiphase materials, experimental measurements.
* Field exercises (in cooperation with Institute of Geophysics, Czech Academy of Sciences)
Practical measurements. Instrument installation, data acquisition, processing, and interpretation.
Annotation
Follow-up lecture to the NGEO080 aiming at theoretical and practical aspects of EM induction technique on different spatiotemporal scales.