GP415 : Mathematical Methods in Geophysics

Department

Department of Geophysics

Academic Program

Bachelor in Geophysics

Type

Compulsory

Credits

03

Prerequisite

CS100GP223GP312MA201

Overview

This course is designed to achieve the overall objectives in the form of learning outcomes that students are expected to acquire after completing the course, as follows:

  • Studying the mathematical foundations and concepts of geophysics and strengthening knowledge of basic mathematical methods and understanding their application in the field of geophysics.
  • Studying the foundations and concepts for vector analysis and algebraic operations of vectors.
  • Studying partial differential equations; equations in geophysics: Laplace's equation, wave field equations.
  • Studying the Fourier series for odd and even functions, the complex Fourier series, and advanced and inverse Fourier transforms.
  • Studying the forward and inverse Z-transform.

Intended learning outcomes

By completing this course, it is expected that the student will be proficient in the following practical and professional skills:

  • Understanding the concept of analyzing vectors and the concepts of operations and differential processes, and dealing with them in different coordinate systems.
  • Being able to classify and solve a variety of differential operations.
  • Familiarize the student with partial differential equations in geophysics and the foundations and methods of solving them.
  • Familiarize the student with the Fourier series for functions and advanced and inverse Fourier transforms.
  • The ability to use the Fourier series to transition between time or distance domains and frequency domains.

Teaching and learning methods

The course is taught using the following methods and techniques:

  • Lectures
  • Laboratory activities
  • Information gathering
  • Discussion groups

Methods of assessments

  • First midterm exam: 25% (written).
  • Second midterm exam: 25% (written).
  • Final exam: 50% (written).
  • Passing grade: 50% or above.
  • Overall course grade: 100%

Course Contents.

  • The first week covers vector analysis, algebraic operations for vectors, vector components, and coordinate systems: rectangular, cylindrical, and spherical coordinates.
  • The second week uses the theories of gradient, divergence and winding, delta applications, Laplace’s equation - Poisson’s equation, and the definition of the potential field.
  • Week three Ordinary Differential Equations (ODE); Define, arrange, solve
  • The fourth week: partial differential equations; Equations in geophysics: Laplace equation, seismic wave field equations.
  • Week 5: Complex functions, polar form for complex functions, amplitude and phase for complex functions
  • The sixth week: Fourier series for odd and even functions, cosine series
  • The seventh week: forward and reverse Fourier integrals and transforms, amplitude and phase in the time domain
  • The eighth week is the midterm exam
  • The ninth and tenth weeks: Fourier transforms of some functions; Dirac delta function, step function, rectangular function, cosine function, and sine function.
  • The eleventh and twelfth weeks: Fourier properties (time interval or distance to the frequency domain) in calculating deconvolution and aspects between functions
  • The thirteenth and fourteenth weeks apply Fourier transforms to the general solution of partial differential equations; Laplace equations - seismic wave field equations. Non-continuous Fourier transforms (DFT).
  • Week 15: Z transform of a discrete-time function (time series), derivation of Z transform, forward and reverse Z transform, properties of Z transform.
  • Week sixteen, final assessment.

General Physics I (PH111)
General Chemistry 1 (CH101)
Mathematics 1 (MA100)
Arabic language 1 (AR051)
English Language 1 (EL101)
Physical Geology (GE111)
Arabic language 2 (AR052)
General Physics II (PH112)
Calculus and Analysis principle 2 (MA102)
Historical Geology (GE112)
English language 2 (EL102)
General Geophysics (GP101)
General Chemistry 2 Laboratory (CH103)
General chemistry 2 (CH102)
Structural Geology (GE203)
Mathematics Ш (MA205)
Principles of geophysical exploration 2 (GP 211)
Principles of geophysical exploration 1 (GP 210)
General Physics III (PH210)
Programming Principles (CS110)
Ordinary Differential Equation 1 (MA209)
Introduction to Statistics (ST212)
Earth Geophysics. (GP225)
Seismic Exploration Method 1 (GP223)
Geodesy (GP 212)
Petrophysics (GP 220)
Seismic Exploration Methods 2 (GP312)
Geoelectric 1 (GP313)
Gravity Exploration Method (GP314)
Sedimentation & Stratigraphy (I) (GE305)
Complex Analysis 1 (MA301)
Petroleum Geology (GE310)
Nuclear geophysics (GP413)
Well logging (GP321)
Geoelectric 2 (GP326)
Magnetic Exploration Methods (GP327)
Geophysics I (GP361)
Geophysics I (GP362)
Mathematical Methods in Geophysics (GP415)
Geology of Libya - Elective I (GE405)
Geophysical Seminar I (GP411)
Computer Application in Geophysics (GP426)
Environmental Geophysics (GP418)
BSc Project (GP430)
Remote Sensing & GIS - Elective III (GP XXX)
Field Geophysics (GP425)
Petroleum Systems of Libya - Elective II (GE408)
Geophysical Signal Analysis (GP424)
Formation Evalution (GP423)
Geophysical Seminar II. (GP422)
Seismology (GP421)