| Strong wind and moderate wind cases conducted as part of the Precision Atmospheric Marine Boundary Layer Experiment were analyzed in order to study marine atmospheric boundary layer (MABL) adjustment around two major coastal points. In the moderate wind case, MABL adjustments were observed upstream of both points, while in the strong wind case, adjustment was only observed upstream of one of the points. A rapid thinning and acceleration of the MABL were observed downstream of both points in both cases, consistent with expansion fan dynamics. It was found that flow often transitions from subcritical to supercritical around the points, leading to upstream blocking and downstream expansion fan adjustments. Lee thinning and acceleration were observed in the strong wind case; however, these adjustments are influenced by both flow around and over the coastal points. Three distinct layers were often observed in the lees of coastal points. |
