Due to human activities the temperature conditions in the most populated urban areas differ significantly from those in the natural environment. I chose to study urban areas because ongoing modifications influence the life of people living there. Most people living in urban areas spend most of their time in the urban roof level of the urban boundary layer between the surface and the average level of roofs therefore the conditions in this layer influence their health. Apart from feeling comfortable the forming heat excess affects energy demands which are in connection with cooling demand in warmer and the heating demand in colder periods. Moreover, it determines biodiversity and the distribution of pollutants and diseases in urban areas.

Lecture in Hungarian.