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Course, academic year 2023/2024
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Inverse modeling in geodynamics - NGEO102
Title: Inverzní modelování v geodynamice
Guaranteed by: Department of Geophysics (32-KG)
Faculty: Faculty of Mathematics and Physics
Actual: from 2013
Semester: winter
E-Credits: 3
Hours per week, examination: winter s.:2/0, Ex [HT]
Capacity: unlimited
Min. number of students: unlimited
4EU+: no
Virtual mobility / capacity: no
State of the course: taught
Language: Czech, English
Teaching methods: full-time
Teaching methods: full-time
Guarantor: prof. RNDr. Ondřej Čadek, CSc.
Annotation -
Last update: T_KG (09.05.2013)
Inversion of dynamic topography and geoid for mantle viscosity, analyses of see-level data and their relationship to postglacial rebound, inversions of gravity and seismic data to determine the crustal structure and others are classical problems used in contemporary geodynamics research. The lecture presents the basic theory of these inverse problems, discuss their advantages and limitations and gives overview about the basic literature in this field.
Aim of the course -
Last update: T_KG (09.05.2013)

The students learn basic principles of main inverse problems solved in geodynamics research.

Course completion requirements - Czech
Last update: prof. RNDr. Ondřej Čadek, CSc. (06.10.2017)

Zkouška probíhá formou písemky, po které následuje ústní zkoušení.

Literature -
Last update: T_KG (09.05.2013)

The text of lecture plus classical papers on selected subjects.

Teaching methods -
Last update: T_KG (09.05.2013)

Regular lecture.

Syllabus -
Last update: T_KG (09.05.2013)

1. Rheological properties of crust and mantle. Viscosity, elasticity, plasticity, brittle failure. Isostasy, elastic lithosphere, dynamic topography.

2. Gravity anomalies and their relationship to mantle density and topography. Admittance. Sesimic tomography.

3. Dynamic geoid and its relationship to viscosity. Spectral solution of the forward problem and methods to solve the inversion for viscosity.

4. Elastic lithosphere and determining its thickness in spherical geometry. More complex behavior of lithosphere. Application to single-plate terrestrial planets.

5. Linear viscoelasticity, Eulerian and Lagrangian approach. Postglacial rebound and inversions of see-level data for viscosity.

6. Rotation of the Earth. True polar wander. The Liouville equations and internal dynamics of the Earth.

7. Combining seismic and gravity data in determining structure of crust. Seismic anisotropy. Heat flux measurements.

 
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