Boundary layer physics and turbulence—Theoretical aspects

Theoretical descriptions of the atmospheric boundary layer have not changed substantially during the past four years. The Monin‐Obukhov theory remains the most complete description of the surface layer. Rather idealized models of the deeper convective boundary layer are also reasonably accurate. The stable boundary layer is still poorly understood, and the controversy persists in several attempts to relate boundary layer motions to deeper tropospheric flow.