The atmospheric boundary layer is home to a number of horizontally elongated quasi-two-dimensional phenomena including cloud streets, roll vortices, thermal waves, and surface layer streaks. These phenomena, their dynamics, and their interactions are explored via a review of the literature. Making a clear distinction between the various quasi-two-dimensional phenomena allows improved synthesis of previous results and a better understanding of the interrelationships between phenomena.

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Department of Meteorology, The Pennsylvania State University, University Park, Pennsylvania

Atmospheric Environment Section, Illinois State Water Survey, Champaign, Illinois, and Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois

South Dakota School of Mines and Technology, Rapid City, South Dakota

Applied Physics Laboratory, University of Washington, Seattle, Washington

An amplified discussion of this topic is available online (DOI: 110.1175/BAMS-83-7-Young). For current information see