Reference And Time Systems

LEARNING OUTCOMES

Basic course goals:

• Basic concepts on reference systems and time transformations
• Contemporary applications in surface and satellite geodesy
• Relations between local and global geodetic reference systems
• Algorithms on transformation in space and time

 

General Competences

• Search for, analysis and synthesis of data and information, with the use of the necessary technology
• Decision-making
• Working independently
• Working in an international environment
• Production of new research ideas
• Production of free, creative and inductive thinking

 

SYLLABUS

Space and Time in earth sciences. Time and Space measurements. The geometry of Decartes, coordinates and reference systems in Euclidean space. Reference and coordinate system differences. Orthonormal base. Reference frames. Reference frame relations. Curvilinear coordinates. Spherical coordinates. Geodetic and ellipsoidal coordinates. Physical systems of the gravity field. Local astronomical system. Introduction to the height systems. Basic transformation. Plane and 3D transformations. Rotation matrices. Specialized Helmert transformations. Quadratic numbers. Inertial reference systems. ICRS system. Earth – Centered – Earth – Fixed reference systems. ITRS System. Transformation between ICRS and ITRS. Nutation and Presession Theory. Earth pole coordinates. Newtonian and Relativistic Time Theory.

 

STUDENT PERFORMANCE EVALUATION

The final course evaluation is based on written examination (70%) and laboratory work (30%)
Language of evaluation: Greek (English if needed, e.g., Erasmus+ students)
Written examination with short-answer questions, problem solving and laboratory work

 

ATTACHED BIBLIOGRAPHY

1. Torge W., 2001. Geodesy. 3rd Edition. Walter de Gruyter, Berlin.
2. Vanicek P., Krakiwsky E., 1992. Geodesy: The Concepts. Elsevier, New York.
3. Altamimi Z. and X. Collilieux (eds.), 2013. Reference Frames for Applications in Geosciences. Springer eds.
4. Kovalevsky J., I. I. Mueller and B. Kolaczek (eds.), 1989. Reference Frames in Astronomy and Geophysics. Springer eds.

Related academic journals:
1. Journal of Geodesy
2. Journal of Geodetic Sciences
3. IAG Series publications