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JFZ7172 | Modeling in Ground Penetrating Radar Method | 3+0+0 | ECTS:7.5 | Year / Semester | Spring Semester | Level of Course | Third Cycle | Status | Elective | Department | DEPARTMENT of GEOPHYSICAL ENGINEERING | Prerequisites and co-requisites | None | Mode of Delivery | Face to face | Contact Hours | 14 weeks - 3 hours of lectures per week | Lecturer | Prof. Dr. Aysel ŞEREN | Co-Lecturer | None | Language of instruction | Turkish | Professional practise ( internship ) | None | | The aim of the course: | The aim of this course is to serve as an introduction to the Georadar forward problem. So, this course mainly presents modelling of ground penetrating radar data and gives Finite Difference Time Domain (FDTD) Method. Also, it is aimed to introduce FDTD and importance of Absorbing Boundary Conditions (ABC) in this modelling. In this course a brief introduction of the procedure for applying FDTD method to time-domain Maxwell equations is shown. |
Programme Outcomes | CTPO | TOA | Upon successful completion of the course, the students will be able to : | | | PO - 1 : | explain modelling of ground penetrating radar (GPR) data. | 2,3 | 1 | PO - 2 : | learn Finite Difference Time Domain (FDTD) Method and the importance of Absorbing Boundary Conditions (ABC) in this modelling | 2,3 | 1 | PO - 3 : | procedure for applying FDTD method to time-domain Maxwell equations. | 2,3 | 1 | PO - 4 : | illustrate the Yee's FDTD formulation. | 2,3 | 1 | PO - 5 : | discuss various considerations such as numerical dispersion, stability of the model and terminating the model with ABC. | 2,3 | 1 | PO - 6 : | discuss 2D FDTD algorithms for the Analysis of cavity problems, to analyze electromagnetic interaction in unbounded media. | 2,3 | 1 | PO - 7 : | do modellling different subsurface geometries in GPR. | 2,3 | 1 | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), PO : Learning Outcome | |
Modeling in Geophysics. Forward and inversion modeling. Ground penetrating radar wave propogation in two-dimensional media. Finite-difference method. Finite-difference modeling of ground penetrating radar data. Radargrams of various subsurface models. What is modelling in Geophysics? How is modelling of ground penetrating radar (GPR) data. Finite Difference Time Domain (FDTD) Method and the importance of Absorbing Boundary Conditions (ABC) in this modelling. Applications of FDTD method to time-domain Maxwell equations. The Yees FDTD formulation. Discussing of 2D FDTD algorithms for the Analysis of cavity problems, to analyze electromagnetic interaction in unbounded media. |
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Course Syllabus | Week | Subject | Related Notes / Files | Week 1 | Modeling in Geophysics. Forward and inversion modeling | | Week 2 | Ground penetrating radar wave propogation in two-dimensional domain | | Week 3 | Finite-difference method. Finite-difference modeling of ground penetrating radar data | | Week 4 | The importance of Absorbing Boundary Conditions (ABC) in GPR modelling | | Week 5 | Applications of Fine Difference Time Doman (FDTD) method to time-domain Maxwell equations | | Week 6 | The Yees FDTD formulation | | Week 7 | Artifact radargrams of various subsurface models | | Week 8 | Mid-term exam | | Week 9 | Discussing of 2D FDTD algorithms for cavity problems | | Week 10 | Ground probing radar simulation in engineering and archaeology | | Week 11 | Modeling studies with the modeling module in Reflexw program software | | Week 12 | Simulation of georadar waves in a 2D soil model | | Week 13 | Finite difference modeling of electromagnetic wave propagation in dispersive and attenuating media | | Week 14 | GPRMAX modeling program | | Week 15 | Modeling examples with GPRMAX program | | Week 16 | End-of-term exam | | |
1 | Reflexw Sandmeier Scientific Software 2007 | | 2 | Giannopoulos, A. 2005; Modelling ground penetrating radar by GprMax, Construction and Building Materials, Vol.19, Issue 10, p. 755-762 | | |
1 | Goodman, D. 1994; Ground-penetrating radar simulation in engineering and archaeology, geopyhsics, vol.59, no.2, p. 224-232 | | |
Method of Assessment | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | Mid-term exam | 8 | 30/03/2011 | 2 | 30 | In-term studies (second mid-term exam) | 12 | 29/04/2011 | 2 | 20 | End-of-term exam | 16 | 28/05/2011 | 2 | 50 | |
Student Work Load and its Distribution | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | Sınıf dışı çalışma | 4 | 14 | 56 | Laboratuar çalışması | 0 | 0 | 0 | Uygulama | 4 | 5 | 20 | Klinik Uygulama | 0 | 0 | 0 | Ödev | 3 | 4 | 12 | Proje | 6 | 4 | 24 | Diğer 1 | 0 | 0 | 0 | Diğer 2 | 0 | 0 | 0 | Total work load | | | 112 |
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