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Title: Atmospheric recirculation on the east coast of Gran Canaria island
Authors: Pérez, N.
Rodríguez Rodríguez, Germán Alejandro 
Pacheco Castelao, José Miguel 
UNESCO Clasification: 250106 Dinámica atmosférica
250902 Contaminación atmosférica
Keywords: Low atmosphere coastal circulation
Atmospheric recirculation
Ventilation and stagnation
Pollutant transport modelling
Issue Date: 2014
Journal: WIT Transactions on Ecology and the Environment 
Conference: 22nd International Conference on Modelling, Monitoring and Management of Air Pollution, AIR 2014 
Abstract: A preliminary statistical study on the meteorological conditions governing the air quality, in terms of atmospheric recirculation, ventilation, and stagnation, on the east coast of Gran Canaria Island, a generally well-ventilated area, is presented. The study is based on the use of an objective methodology using single-station long-term time series of surface wind velocity. It is shown that, although during long periods, dominant wind conditions lead to substantial renovation of air masses at the study area, there exists a statistically significant probability of extreme events of recirculation which facilitate conditions for air pollutant accumulation, with eventual severe impacts on air quality. The frequency of occurrence of high recirculation factors presents a clear annual pattern reaching its maximum in winter.
ISBN: 9781845647827
ISSN: 1743-3541
DOI: 10.2495/AIR140021
Source: WIT Transactions on Ecology and the Environment [ISSN 1743-3541],v. 183, p. 15-25
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