Course detail

# Physical Geodesy

Fundamentals of gravity potential theory Gravity potential of a general body in outer potential point. Spherical harmonic functions and Legendre´s functions. Poisson´s equation, Laplace´s equation and some of the solutions. Field of centrifugal force of the rotating Earth. Field of tidal forces. Earth´s gravity field. Gravity potential level surfaces of gravity potential. Fundamentals of theory of heights. Stokes´ parameters and their determination. Normal gravity and gravity force field of level spheroids. Earth´s normal gravity field. Measurement of fundamental gravity field parameters. Statistical methods of physical geodesy. Interpolation and extrapolation of gravity anomalies. Modern methods for determination of the Earth´s shape. Fundamentals of Earth´s composition, tidal phemomena, local and regional geodynamics. Earth´s magnetic and thermal field. Practical applications of physical geodesy application in global view.

Language of instruction

Czech

Number of ECTS credits

4

Mode of study

Not applicable.

Department

Institute of Geodesy (GED)

Learning outcomes of the course unit

Student gets knowledge of physical geodesy, geopotencial models and satellite methods for models creation.

Prerequisites

Fundamental knowledge of geophysics and theoretical geodesy.

Co-requisites

The student should have advanced knowledge of physics and mathematics.

Planned learning activities and teaching methods

The lectures will be regularly included in addition to the lectures and follow-up exercises, there are also news from the subject, news and development perspectives.The same in the exercises with an emphasis on practical applications.

Assesment methods and criteria linked to learning outcomes

Verification of knowledge and skills takes place in exercises. Students are motivated to continuous study even during the lessons. The teacher repeatedly emphasizes essential profile information. The exam is carried out in the form of a test as well as in writing. Evaluation is carried out according to valid principles with a set scale of evaluation.

Course curriculum

1. Gravity potential theory. Spherical harmonic functions and Legendre´s functions. Poisson´s equation, Laplace´s equation and some of the solutions.
2. Field of centrifugal force of the rotating Earth. Field of tidal forces. Earth´s gravity field. Gravity potential level surfaces of gravity potential.
3. Theory of heights. Stokes´ parameters and their determination. Normal gravity and gravity force field of level spheroids.
4. Earth´s normal gravity field. Measurement of fundamental gravity field parameters.
5. Modern methods for determination of the Earth´s shape.
6. Tidal phenomena, local and regional geodynamics. Earth´s magnetic and thermal field.
7. Practical applications of physical geodesy methods.

Work placements

Work placements are currently not foreseen within this subject.

Aims

Knowledge of physical fundaments of geodesy. Overview of traditional and contemporary methods of physical geodesy. Acquaintance with contemporary techniques for determination of Earth´s physical parameters.

Specification of controlled education, way of implementation and compensation for absences

Extent and forms are specified by guarantor’s regulation updated for every academic year.

Recommended optional programme components

Survey of the possibilities of applying knowledge gained in teaching and exercises in applications in companies, institutions, schools, research and development workplaces.

Prerequisites and corequisites

Not applicable.

Basic literature

Hofmann-Wellenhof, B. - Moritz, H.: Physical geodesy. Springer, 2005.

Burša, M., Kostelecký, J.: Space Geodesy and Space Geodynamics. Ministry of Defence CR, 1999.
Burša, M.: Geopotenciál, teoretické základy a modely. Učebnice, díl I, Geografická služba AČR, 2004. (CS)
Burša, M., Vatrt, V., Vojtíšková, M.: Geopotenciál, díl II, Modely a jejich využití v praxi, Geografická služba AČR, 2012.  (CS)
Hofmann-Wellenhof, B. - Moritz, H.: Physical geodesy. Springer, 2005. (EN)
Pick, M.: Advanced Physical Geodesy and Gravimetry. Ministry of Defence CR, 2000.

Classification of course in study plans

• Programme N-P-C-GK Master's

branch GD , 2. year of study, winter semester, compulsory-optional

#### Type of course unit

Lecture

26 hours, optionally

Teacher / Lecturer

Syllabus

1. Geopotential models. 2. Tidal deformations. 3. Satellite altimetry. 4. Determination of Earth´s crust motions 1. 5. Determination of Earth´s crust motions 2. 6. Gyroscopes. 7. Acceleration sensors. 8. Inertial systems. 9. Satellite systems. 10. Integration of inertial and satellite systems 1. 11. Integration of inertial and satellite systems 2. 12. Advanced international research projects.

Exercise

13 hours, compulsory

Teacher / Lecturer

Syllabus

1. Geoid, quasigeoid profils and theirs difference 2. Innovative conversion of various type of heights, practical aspectds 3. Geopotential, gravity potential 4. Geopotential models testing 5. Creation of height systém 6. Improvement of geopotential model