Kocaeli University / European Credit Transfer System (ECTS)

Name of Lecturer(s)

Prof. Dr. Bülent ORUÇ

Learning Outcomes of the Course Unit
Program Competencies-Learning Outcomes Relation

Learning Outcomes of the Course Unit

1) Developing the subsurface complex geological features in the form of geophysical models (Idealization).
2) Defining the concept of the forward solution in geophysical modelling.
3) Applying the forward solution in gravity, magnetic, electrical, electromagnetic and seismic reflection methods.
4) Defining the concept of the linear and nonlinear inverse solution and properties of the system and jacobian matrix in geophysical modelling. Analyzing well-and ill conditioned problems.
5) Calculating the physical parameters in linear inverse solution with least squares method.
6) Calculating the geometrical parameters in nonlinear inverse solution with least squares method.

Program Competencies-Learning Outcomes Relation

		Program Competencies
		1	2	3	4	5	6	7	8	9
Learning Outcomes
	1	Low	Middle	Low	High	Middle	Middle	Low	Low	Middle
	2	Low	High	Middle	High	Middle	Middle	Low	High	Middle
	3	Middle	Low	Middle	Low	Low	Middle	High	Middle	Middle
	4	Low	High	Middle	High	High	Middle	Middle	High	High
	5	High	Middle	High	Middle	Low	High	Middle	High	High
	6	Middle	Low	High	High	Middle	Middle	High	Middle	Middle

Mode of Delivery

Face to Face

Prerequisites and Co-Requisites

None

Recommended Optional Programme Components

Course Contents

This course covers; the concept of geophysical modelling, parameterization principles, the definition of forward and inverse problem, linear and nonlinear inverse solution with the least squares method, the structure of system matrix and jacobian and the estimation of ğarameters for well- and ill conditioned problems.

Weekly Schedule

1) Definition of modeling in geophysics, principles of idealization in complex shaped structures, definition of model and data environments
2) Jeofizik modellemede düz çözümün tanımı, düz çözüm işleyişi akış şeması
3) Gravity and magnetic forward solution of polygonal structures and Matlab applications
4) Electrical resistivity forward solution of horizontally layered media and Matlab applications
5) Definition of inversion in geophysical modeling, concepts of linear and nonlinear inversion
6) Mid term
7) Parameter estimation in linear inversion, discretization of the Fredholm integral of the first kind
8) Mid term
9) Linearization of nonlinear problems, parameter estimation in nonlinear inversion
10) Nonlinear inversion by unrestricted least squares method, structure of sensitivity (Jacobian) matrix
11) Iterative application of nonlinear inversion, criteria for stopping iterations, applications to gravity, magnetics and resistivity
12) Iterative application of nonlinear inversion, criteria for stopping iterations and practices
13) Singular Value Decomposition
14) Parameter and data resolution, determination of stability of parameter estimates
15) Parameter estimation in ill-conditioned systems using weighted and damped least squares methods
16) Final exam

Planned Learning Activities and Teaching Methods

1) Lecture
2) Question-Answer
3) Discussion
4) Drill and Practice
5) Group Study
6) Lab / Workshop
7) Problem Solving
8) Project Based Learning

Assessment Methods and Criteria

Contribution of Semester Studies to Course Grade

40%

		Number	Percentage
Semester Studies	Midterm Examination	1	60%
Semester Studies	Short Exam / Quiz	1	40%

Contribution of Final Examination to Course Grade

60%

Total

100%

Language of Instruction

Turkish

Work Placement(s)

Not Required

Course Unit Title	Course Unit Code	Type of Course Unit	Level of Course Unit	Year of Study	Semester	ECTS Credits
Modelling In Geophysics	JFZ409	Elective	Bachelor's degree	4	Fall	4