A large variety of geophysical phenomena can be considered examples of gravity currents, normally thought of as the horizontal or quasihorizontal penetration of a light fluid by a plume of denser fluid. In Gravity Currents in the Environment and the Laboratory, Simpson discusses both the basic physics and real-world applications of gravity currents and related phenomena such as hydraulic jumps, undular bores, and the spread of buoyant plumes.

This book is a considerable expansion of an earlier edition published a decade ago and represents the accumulated wisdom of a career devoted to observation and laboratory simulation of small-scale environmental fluid mechanical phenomena. The result can be recommended enthusiastically both to experts in the field and readers who have more general interests in meteorology, oceanography, or other areas of fluid mechanics.