Dynamics II course 2023
Gerrit Lohmann, Monica Ionita
Summer 2023, University of Bremen
Lecture/Reading: Monday, 14-16; Prof. Dr. Gerrit Lohmann, Dr. Monica Ionita (start 14:15) Room: NW1 N3310
Tutorial: Monday, 16-17; Fernanda Matos, Ahmadreza Masoum (start 16:00)
Description
The focus of the course is to identify the underlying dynamics of the
atmosphere-ocean system. The fundamental concepts of atmosphere-ocean flow, energetics,
vorticity, and wave motion are described. These phenomena are described
using dynamical equations, climate data, as well as basic physical and
mathematical concepts. Exercises complement the lessons.
Key words
Fluid dynamics, ocean circulation, wind-driven and thermohaline circulation; atmosphere dynamics, dynamical system theory, non-dimensional parameters, bifurcations and instabilities; Gravity, Rossby, and Kelvin waves; Conceptual models, Analytical and Programming techniques; Time series analysis
Learning outcome
Advanced dynamics of the ocean and atmosphere, applications in the fields of climate dynamics and fluid mechanics. Programming skills and usage of the climate data operators. Theoretical concepts in physics of climate, temporal and spatial scales of climate dynamics.
Formalities
Assignment to study programmes: Compulsory for MSc Environmental Physics, Optional compulsory for MSc Physik
Workload /credit points: 3 CP, 90 h
• lectures: 20 h (2 h x 10 weeks)
• repeating the lectures/learning/reading: 20 h (2 h x 10)
• example classes: 10 h
• example classes homework: 30 h (3 h x 10)
• additional preparation for exam: 10 h
Course and examination performance
There are two parts: Course achievements and examination achievements (Studienleistungen und Prüfungsleistungen)
Course achievements:
50% of the points of the exercise sheets are required. Furthermore, we require active participation with at least one time showing a solution.
Working in study groups is encouraged, but each student is responsible for his/her own solution. If the solution is typewritten (e.g. with LaTex, Rmarkdown, or word), we allow up to 3 persons to be listed on a solution sheet. Send in your solutions in form of a PDF to our email addresses (one PDF per group!).
Examination achievements:
You have to pass the written exam Aug 15, 10-12. Room N3130
The exam is based on the exercises and the general content of the lecture. The procedure follows the rules of pep.
Time table
1) April 17 (MI)
Content: Atmosphere and Ocean Dynamics, Scaling of the dynamical equations, Geostrophy
Exercise 1 distributed
No tutorium
2) April 24 (CS)
Content in script: Programming in bash, climate data operators
Exercise
2 distributed and start of the work
Tutorium by CS
3) May 8 (MI)
Content: Angular momentum and Hadley Cell, Wind-driven ocean circulation
16:00 Tutorium (FM) about solutions of Exercise 1;
Exercise 3 distributed
4) May 15 (MI)
Content: Climate variability and dynamics
16:00 Tutorium (CS) about solutions of Exercise 2;
Exercise 4 distributed
5) May 22 (GL)
also: Rayleigh-Bénard convection, Lorenz system, nonlinear dynamics, bifurcations, multiple equilibria
16:00 Tutorium (AM) about solutions of Exercise 3;
Exercise 5 distributed
6) June 5 (GL)
Content: Rayleigh-Bénard convection, Lorenz system, nonlinear dynamics, bifurcations, multiple equilibria
16:00 Tutorium (FM) about solutions of Exercise 4;
Exercise 6 distributed
7) June 12 (GL)
Content: Deep ocean circulation, Conceptual models
Box model and climate scenarios
16:00 Tutorium (FM) about solutions of Exercise 5;
Exercise 7 distributed
8) June 19 (GL)
Content: Shallow water equations and Waves
16:00 Tutorium (FM) about solutions of Exercise 6;
Exercise 8 distributed
10) July 3 (AWI-IUP Blockseminar day)
no lecture, no tutorium
Test exam: 2 h at home. The pdf will be electronically distributed.
11) July 10 (GL)
14:15 Inverted lecture, questions about the course and test exam
15:15 Tutorium (AM) for the solutions of Exercise 8 and Exercise 9
Exam written on Aug 15, 10-12. N3130
Literature:
Alles gut gemacht