Lecture/Reading: Monday, 14-16; Prof. Dr. Gerrit Lohmann, Dr. Monica Ionita
Tutorial: Monday, 16-17; Smit Doshi, Dr. Qiyun Ma
The focus of the course is to identify the underlying dynamics for the atmosphere-ocean system. This is done through theory, numerical models, and statistical data analysis. It has been recognized that the atmospheric and oceanic flow binds together the interactions between the biosphere, hydrosphere, lithosphere and atmosphere that control the planetary environment. The fundamental concepts of atmosphere-ocean flow, energetics, vorticity, wave motion are described. This includes atmospheric wave motion, extratropical synoptic scale systems, the oceanic wind driven and thermohaline circulation. These phenomena are described using the dynamical equations, observational and proxy data, as well basic physical and mathematical concepts. Exercises complement the lessons.
In den letzten Jahren wurde erkannt, dass Wechselwirkungen zwischen Klimakomponenten wie der Atmosphäre und des Ozean für die Klimaforschung essenziell sind. Der Schwerpunkt des Kurses liegt auf den theoretischen Grundlagen der Dynamik im Atmosphäre-Ozean-Eissystem. Die grundlegenden Konzepte von Strömungen, Energie, großskalige Wirbel und Wellenbewegung werden beschrieben. Dies umfasst atmosphärische Wellenbewegungen, die ozeanische windinduzierte Strömung und die thermohaline Zirkulation. Anhand von Beispielen werden die grundlegenden Methoden erlernt.
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
Advanced dynamics of the ocean and atmosphere, applications in the fields of climate dynamics and fluid mechanics. Programming skills (R studio) and usage of the climate data operators. Theoretical concepts in physics of climate, temporal and spatial scales of climate dynamics
Assignment to study programmes: Compulsory for MSc Environmental Physics, Optional compulsory for MSc Physik
Workload /credit points: 3 CP, 90 h
• lecture and preparation: 24 h (2 h x 12 weeks)
• repeating the lectures/learning/reading: 24 h (2 h x 12 weeks)
• example classes: 10 h (1 h x 10 weeks)
• example classes homework: 30 h (3 h x 10 weeks)
• additional preparation for exam: 2 h
There are two parts: Course achievements and examination achievements (Studienleistungen und Prüfungsleistungen)
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!).
You have to pass the written exam Sept. 26, 10-12.
The exam is based on the exercises and the general content of the lecture. The procedure follows the rules of pep.
Content: Rayleigh-Bénard convection, Lorenz system, nonlinear dynamics, bifurcations, multiple equilibria
Exercise 1 distributed
Content: Atmosphere and Ocean Dynamics, Scaling of the dynamical equations, Geostrophy
Exercise 2 distributed
Content: Angular momentum and Hadley Cell, Wind-driven ocean circulation
16:00 Tutorium about solutions of exercises 1; Exercise 3 distributed
Content: Rayleigh-Bénard convection, Lorenz system, nonlinear dynamics, bifurcations, multiple equilibria
Deep ocean circulation, Conceptual models
16:00 Tutorium about solutions of exercises 2; Exercise 4 distributed
Content: Deep ocean circulation, Conceptual models
Box model and climate scenarios
16:00 Tutorium about solutions of exercises 3; Exercise 5 distributed
Content: Climate variability, dynamics, and applications
16:00 Tutorium about solutions of exercises 4 & 5; Exercise 7 distributed
Content: Shallow water equations and Waves
16:00 Tutorium about solutions of exercises 6; Exercise 8 distributed
8:56 train from Bremen
9:45 start in the Glaskasten
10:00-11:00 GL about AWI and climate research, Glaskasten
11:15-12:30 lab tour in Building D
12:45-13:45 lunch break in the Mensa Hochschule
14:00-15:00 MI about tipping points, Glaskasten
15:15-16:00 tutorium of Dynamics II related to exercises 7, Exercise 9 distributed, Glaskasten
16:28 Train to Bremen
16:00 Tutorium about solutions of exercises 8
Test exam: 2 h at home. The pdf will be electronically distributed.
Inverted lecture, questions about the course and text exam
Tutorium Programming in exercise 6 (bash, climate data operators) (CS)
Tutorium for the solutions of exercises 9
Alles gut gemacht