The coastal boundary layer and air pollution - a high temporal resolution analysis in the East Mediterranean coast

Leenes Uzan, Pinhas Alpert

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)9-18
Number of pages10
JournalOpen Atmospheric Science Journal
Volume6
Issue number1
DOIs
StatePublished - 2012

Keywords

  • Air pollution
  • Coastal boundary layer
  • Lap3000
  • Sea breeze front

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