Warunki meteorologiczne na Równinie Kaffiöyra (NW Spitsbergen) w okresie od 13 lipca do 9 września 1999 roku

The article presents results of meteorological observations carried out in the summer of 1997 on the Kaffiöyra Plain during 13rd Toruń Polar Expedition. The measurements were carried out four climatological time a day (01, 07, 13 and 19 LMT) from 21st July to 1st September 1997 i.e. 43 days. The values of meteorological elements are presented in tab. 2 and fig. 2. Apart from the 1997 summer data, there have also been presented for comparison mean values of basic meteorological elements from comparable period s (July 21 - August 31 ) of all the summer seasons when the Toruń Polar Expeditions operated on Spitsbergen (tab. 4). The summer season in 1997 was very wet, with domination of strong winds and average sunshine, thermic and humidity conditions. During the research period cyclonic situations dominated (52.4%), on 47.6%, of the days the weather conditions were formed by anticyclones.