ESS200A
Prof. Jin-Yi Yu
Mixed Layer Processes
q The depth of the mixed layer  is determined by (1) the rate of buoyancy generation and (2) the rate kinetic energy supply.
q The atmosphere can affect the mixed layer through three processes: heating, wind forcing, and freshening (P-E).
q The global-average depth of the mixed layer is about 70 m.
q The heat capacity of the mixed layer is about 30 times the heat capacity of the atmosphere.
(from Global Physical Climatology)