Experimental Study of the Turbulent Structure of the Surface Marine Atmospheric Boundary Layer over the Aegean Pelagos Under Etesian Winds

Abstract

In order to study the physical processes of the turbulent transportation of mass and energy of the surface Marine Atmospheric Boundary Layer (MABL), field measurements were carried out, during August and September, 2011, on the island of Skyros, Aegean Pelagos. Α meteorological must (11 m) was installed close to the shoreline, instrumented at three levels (2, 6 and 10 m) with slow response sensors (1 Hz) measuring wind speed and direction, temperature and humidity as well as with fast response sensors (sonic anemometer, fast hydrometer, 20 Hz ) measuring the three components of the wind, virtual temperature and water vapor, at 10 m height. The measurements were conducted mainly during the etesian winds season of this summer. Results related with the vertical transport of momentum, heat and humidity, the evolution of the mean vertical structure and the stability of the surface MABL during the experimental period as well as the study of local mesoscale structures, will be presented and discussed.