Niedosyt fizjologiczny w Arktyce Norweskiej wokresie 1971-2000

W artykule przedstawiono rozkład przestrzenny zmian niedosytu fizjologicznego w Arktyce Norweskiej w okresie 1971-2000. W badaniach zmienności niedosytu fizjologicznego wykorzystano dane ze stacji: Ny-Alesund, Svalbard Airport, Hornsund, Hopen, Bjornoya i Jan Mayen. Wpływ cyrkulacji atmosferycznej na przebieg niedosytu fizjologicznego przeanalizowano wykorzystując katalog typów oraz wskaźniki cyrkulacji Niedźwiedzia (2001, 2002) dla Spitsbergenu.

The paper presents the results of the study of the physiological deficit (D) in the Norwegian Arctic in the period 1971-2000. The values of physiological deficit are indices of evaporation from the lungs and upper respiratory tract of man. The analysis of the physiological deficit in the Norwegian Arctic showed a high value of evaporation from the lungs an upper respiratory tract of man over the whole study area (Tab. 1, Fig. 1-3). During the year the occurrence of 'dry' feeling was noted from 89% of the days at Bjornoya to 98% of the days at Hopen. 'Comfortable' feeling occurred only in summer and sporadically in autumn (Tab. 2). The negative trends of the mean annual and seasonal physiological deficit values are mostly statistically significant (Tab. 3). This means that during the period studied the water evaporation from the upper respiratory track of man decreased significantly in this part of the Arctic (Fig. 4). The highest value of water evaporation from the upper respiratory track was found in the winter season with air advection from the north-eastern sector, independently from the baric system type. The most favourable sense of humidity according to the analysed coefficient physiological deficit was noted in summer with air advection from the southern sector, in case of cyclonic as well as anticyclonic situation (Fig. 5).