The aim of this paper is to present the variability of air humidity conditions in
Kraków by analysing long-term course and frequency of particular values of the air saturation deficit.
Air temperature values from the period of 1901-2000 were used to calculate saturation deficit
values. The basic statistical characteristic, the analysis of variability tendencies in the examined
period and the probability of characteristic days (d//>10.0 hPa, dav>12.5 hPa), and extreme values
occurrence in particular synoptic situations were worked out. The analysis showed that the air in the
city is getting dryer. Statistically significant increasing tendency of summer months means (up to
3.0 hPa/100 years in August) and annual mean (1.4 hPa/100 years) values of the parameter, as well
as growing occurrence of the frequency of days with characteristic air saturation deficit values,
particularly after 1970, are the evidence. Statistically significant correlation with atmospheric circulation
indices variability is noticeable mainly in winter, when the variability of air humidity is not
clearly visible. It proves that local and anthropogenic factors have an essential impact on forming
the humidity conditions in Kraków.
keywords in Polish:
wilgotność powietrza, niedosyt wilgotności powietrza, zmienność wieloletnia, Kraków
keywords in English:
air humidity, air saturation deficit, long-term variability, Kraków
affiliation:
Wydział Biologii i Nauk o Ziemi : Instytut Geografii i Gospodarki Przestrzennej
Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa