The Coastal Boundary Layer and Air Pollution - A High Temporal Resolution Analysis in the East Mediterranean Coast

Leenes Uzan*, 1, Pinhas Alpert2
1 Association of Towns for Environmental Protection (Sharon-Carmel) P.O.B 3041, Hadera, Israel
2 Department of Geophysics and Planetary Sciences, Tel Aviv University, Tel Aviv, 69978, Israel

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© 2012 Uzan and Alpert.;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Association of Towns for Environmental Protection (Sharon-Carmel) P.O.B 3041, Hadera, Israel; Tel: 972-4 6123407; Fax: 972-4-6333448; E-mail:


The East Mediterranean (EM) coast is characterized by warm sea temperatures and a nearly linear coastline. Both parameters influence the sea breeze front and the atmospheric conditions most relevant to air pollution dispersion. Here, the high resolution boundary-layer diurnal variation is highlighted leading to a distinct pattern of spatial-temporal air pollution dispersion, for over 25 years, from Israel's largest coal-fired power plant. Over 4,000 air pollution events were segregated by semi-objective synoptic systems and 7 years of boundary layer profiles carried out by acoustic radar. Results clarify why the highest air pollution events occur during summer at 12:00- 15:00 h through the average coincident drop of the boundary layer height down to 450 m above the ground. Here, the interaction between the synoptics and the sea-breezes is shown to play a significant role in the specific air pollution pattern.

Keywords: Coastal Boundary Layer, Lap3000, Sea Breeze Front, Air Pollution.