Surface ozone measurements at Taliarte, Gran Canaria (Canary Islands, Spain)

Abstract

From December 1990 tropospheric ozone concentrations have been measured at Taliarte station (Gran Canaria, Canary Islands). Taliarte's measurements are of great interest because of its proximity to Izana BAPMoN observatory (Tenerife, Canary Islands) and its relative distance to high-pollution regions. A comparative study with other North-Atlantic stations has been carried out. In order to compare possible analogies and differences, a comparative study has been carried out. Studies involve seasonal cycle, diurnal oscillation and long-range transport. Ozone concentrations at Taliarte show high sensitivity to transport from higher latitudes. For diurnal variations, two different patterns have been found: ''trade winds'' and ''marine breeze'' situations.