Dynamics of the atmosphere

Lectures: 2 sessions / week, 1.5 hours / session

12.800, 18.03

This course begins with a study of the role of dynamics in the general physics of the atmosphere, the consideration of the differences between modeling and approximation, and the observed large-scale phenomenology of the atmosphere. Only then are the basic equations derived in rigorous manner. The equations are then applied to important problems and methodologies in meteorology and climate, with discussions of the history of the topics where appropriate. Problems include the Hadley circulation and its role in the general circulation, atmospheric waves including gravity and Rossby waves and their interaction with the mean flow, with specific applications to the stratospheric quasi-biennial oscillation, tides, the super-rotation of Venus' atmosphere, the generation of atmospheric turbulence, and stationary waves among other problems. The quasi-geostrophic approximation is derived, and the resulting equations are used to examine the hydrodynamic stability of the circulation with applications ranging from convective adjustment to climate.

The course notes have 13 chapters, and at the end of each (except the first introductory chapter) are exercises that constitute the homework for the course. Solutions to the exercises are due within two weeks of the completion of each chapter in class. This homework is graded though the grades are weighted according to their difficulty. In addition, there is a take home final exam.

The final grade is determined by the grade on the take home exam, though if the homework grades are better than the grade on the final exam, the final grade will be improved.

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