This module studies the physical processes occurring in the atmosphere and ocean, with emphasis on the links between the two. Radiation from the Sun and its effect on the Earth. Structure and circulation of the atmosphere. Ocean currents and the thermohaline circulation. Hydrostatic equation and pressure forces. Stability, air masses and fronts. Coriolis force and geostrophy. The effect of the wind on the ocean. Hydrological cycle. If you have not taken 1A25 Forces of Nature, a little background reading will help on concepts such as pressure, density, buoyancy and Coriolis force. Taught in the second half of semester.