This modern climatology textbook explains those climates formed near the ground in terms of the cycling of energy and mass through systems. This well established climatology text explains the climates formed near the ground in terms of the cycling of energy and mass through systems . . . In this second edition, Professor Oke provides a fuller description of the atmospheric layers and gives more emphasis to the whole planetary boundary layer. There are nearly 50 new figures and new material on radiation geometry, the nature of thermals and convective cloud, leaf-air exchange, evapotranspiration from crops and forests, effects of topography on air flow, and the energy balance of cities.