Deformacja warunków anemometrycznych w Szczecinie

On the basis of hourly results of automatic measurements carried out at three immission stations in the years 2005-2009 in the system of air quality monitoring, the differentiation of wind speed and direction in the area of the Szczecin agglomeration was described. It was shown that, in comparison with the open area, the largest deformation of the anemometric conditions that occur when SW winds blow, is characteristic of the densely built-up area in the centre of the town and a smaller deformation of these conditions is characteristic of a multi-storey built-up region. In the central part of Szczecin, the wind speed is more than twice as low as that in the unbuilt-up area, in the outskirts of the town, and the frequency of stillness periods amounts to 16% during a year and increases up to about 30% in night hours in spring and summer.