Influence of atmospheric circulation on meteorological and biothermal conditions in the Mrocza community area

Abstract

The study contains an analysis of the influence of atmospheric circulation on the daily course of basic meteorological parameters and on the development of biothermal conditions within the Mrocza community. For the analysis, the hourly data of meteorological elements: temperature and relative humidity, wind speed, solar radiation from Mrocza and lower synoptic maps were used. The winter, spring, summer and autumn conditions werecharacterized by data from four months of 2013: January, April, July and October respectively. Characteristics of the perceptible climate conditions were estimated on the basis of the universal thermal climate index. The analysis revealed significant differences in daily climatic and bioclimatic conditions with the inflow of the same air masses in different periods of the year. It was found that the most favorable biothermal conditions not charging the human body occur in the transitional seasons, i.e. spring and autumn during the advection of polar maritime air masses. The least favorable is arctic air especially in the winter season, when it is responsible for the occurrence of moderate and strong cold stress, as well as the tropical air coming summer and causing the appearance of moderate and strong heat stress.