The optional courses currently available are:

Fall term

12.812 General Circulation of the Earth's Atmosphere
12.830 Topics in Waves and Instability
12.842 Climate Physics and Chemistry (Revised Content)

Spring term

12.802 Wave Motions in the Ocean and Atmosphere
12.811 Tropical Meteorology
12.820 Turbulence in Geophysical Systems
12.822 Nonlinear Waves and Vortices
12.831 Dynamics and Transport in the Stratosphere
12.840 Past and Present Climate
12.841 Climate Dynamics

(Not all of these courses are offered every year.) Other courses (including courses from outside this department) may be taken in place of one or more of these, subject to approval of the advisor.