A Carolina coastal low-level jet during GALE IOP 2

A persistent, diurnally varying low-level jet (LLJ) was observed along the Carolina coastal plain during the early part of GALE IOP 2 between 0000 UTC January 24 and 0600 UTC January 25. A 1D PBL model (Zhang and Anthes, 1982) is utilized to examine the various dynamic forcing mechanisms controlling the formation and evolution of the LLJ. The experiments suggest that a specific geostrophic wind velocity profile in the lower troposphere was necessary to produce a number of the observed Carolina LLJ characteristics.