COURSE UNIT TITLE

: MODELLING OF WIND-DRIVEN OCEAN CIRCULATIONS

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
PHO 5006 MODELLING OF WIND-DRIVEN OCEAN CIRCULATIONS ELECTIVE 3 0 0 8

Offered By

Graduate School of Natural and Applied Sciences

Level of Course Unit

Second Cycle Programmes (Master's Degree)

Course Coordinator

ASSOCIATE PROFESSOR MURAT GÜNDÜZ

Offered to

PHYSICAL OCEANOGRAPHY

Course Objective

First simple models of the oceanic general circulation are discussed which attribute
the motion of the ocean entitrely to the action of the wind. These models are
homogeneous in density and therefore completely ignore the dynamical effect of
stratification. Quasi-geostrophic approximations are made to drive the equations for
the wind driven ocean circulation. The length scales help us to understand eiter
inertia, horizontal friction, or bottom friction play an important role in vorticity
balance. The homogeneous models have flat topography. We will apply systematically
complicated physics on models including stratification and also variable bottom
topography. Some numerical methods and models will be introduced. Spectral and semispectral
models, quasi-geostrophic models, sigma coordinates, Princeton model and its
free surface version will be considered to solve the differential equations of the
wind-driven ocean circulation

Learning Outcomes of the Course Unit

1   to understand importance of wind in the ocean especially in the coastal areas
2   to apply quasi-geostrophic approximations to make the wind driven ocean model as simple as possible
3   to understand the role of the terms inertia, horizontal friction, or bottom friction in the model equations
4   to understand the approach to complicated models applying systematically complicated physics on models including stratification and also variable bottom topography
5   to understand wind driven circulation begining with a simple model

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 Homogeneous Models of the Wind-driven Ocean Circulations Length scales for the circulations Sverdrup Relation
2 Importance of Horizontal and Bottom Friction Munk Layer Stommel's Model
3 Processes Rossby Waves and the Westward Intensification Nonlinear effects Concluding remarks on homogeneous models
4 Aproximations Beta plane Approximations Quasi-geostrophic (qg)-Approximations
5 Qg Models Veronis qg model Holland's equations
6 Qg Model Equations and Schemes Relaxation (SOR) method
7 MIDTERM
8 Spectral Models Semi-spectral Model
9 Sigma Coordinates
10 Princeton Model Primitive equation system Princeton Cox--Model
11 Free Surface Princeton Model
12 Model Comparison
13 Wind-driven Aegean Sea Circulation
14 Wind-driven Izmir Bay Circulation and coupling with Aegean Sea

Recomended or Required Reading

Pedlosky, J. : Geophysical Fluid Dynamics, 1979.
Abarbanel, D.I. & W.R. Young : General Circulation of the Ocean, 1986.
Veronis, G.: Wind--driven Ocean Circulation - Part 1. Linear Theory and Perturbation
Analysis, 1963, Deep--Sea Res., 13, 17--29.
Bryan, K.: A numerical method for the study of the circulation of the world ocean,
1969, Jour. Comp. Phys., 4, 347--376.
Cox, M.D.: A primitive equation, 3-dimentional model of the ocean, 1984, GFDL Ocean
Group Tech. Rep. No. 1.

Planned Learning Activities and Teaching Methods

Lectures will be held conventionaly. The students prepare a presentation in order to
understand the role of the terms inertia, horizontal friction, or bottom friction in
the wind driven ocean model . Open discussion will take place in the class.

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 MTE MIDTERM EXAM
2 ASG ASSIGNMENT
3 FIN FINAL EXAM
4 FCG FINAL COURSE GRADE MTE * 0.20 + ASG * 0.40 + FIN * 0.40
5 RST RESIT
6 FCGR FINAL COURSE GRADE (RESIT) MTE * 0.20 + ASG * 0.40 + RST * 0.40


*** Resit Exam is Not Administered in Institutions Where Resit is not Applicable.

Further Notes About Assessment Methods

None

Assessment Criteria

To be announced.

Language of Instruction

English

Course Policies and Rules

To be announced.

Contact Details for the Lecturer(s)

Yrd. Doç. Dr. Murat Gündüz
Institute of Marine Sciences and Technology
murat.gunduz@deu.edu.tr

Office Hours

will be announce at the first lecture

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Lectures 13 3 39
Preparations before/after weekly lectures 13 3 39
Preparation for midterm exam 1 10 10
Preparation for final exam 1 20 20
Preparing assignments 1 60 60
Preparing presentations 1 10 10
Reading 10 2 20
Midterm 1 3 3
Final 1 3 3
TOTAL WORKLOAD (hours) 204

Contribution of Learning Outcomes to Programme Outcomes

PO/LOPO.1PO.2PO.3PO.4PO.5PO.6PO.7PO.8PO.9PO.10PO.11PO.12
LO.1542425444435
LO.2512124211315
LO.3512124211315
LO.4523124323315
LO.5544424434435

CONTACT INFORMATION
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Phone: +90(232) 412 12 12 - Fax: +90 (232) 464 81 35

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