Struktura typów pogody w rejonie Bellsundu (W Spitsbergen) w sezonach letnich

W pracy przedstawiono strukturę stanów pogody według klasyfikacji J. Ferdynusa opracowaną dla Calypsobyen w rejonie Bellsundu. Dane pomiarowe pochodzą z sezonów letnich czterech Wypraw UMCS na Spitsbergen w latach 2001, 2002, 2005 i 2006. Długość serii pomiarowych w poszczególnych latach była związana z terminami rozpoczęcia i zakończenia wypraw. Ponieważ pomiary wykonywane były w różnych terminach (między pierwszą dekadą lipca a pierwszą dekadą września) do analizy wykorzystano dane z okresu wspólnego tj. od 15 lipca do 24 sierpnia. Łącznie przeanalizowano dane z 164 dni (po 41 dni z każdego roku).

Region of Wedel Jarlsberg Land (western coast of Spitsbergen) has been the subject of a complex study carried out by the participants of Geographical Expeditions by the Maria Curie-Skłodowska University in Lublin for more than 20 years. The research into the meteorological conditions was initiated in 1986. The station was located on Calypsostranda, a flat sea terrace, at the height of about 23 m a.s.l., at a distance of 200 m. from Bellsund Fjord and 2 km from the Scott Glacier. The substratum was made of dry lichen-moss tundra. This work is trying to define the structure of weather states described by J. Ferdynus in the region of Calypsobyen. For this analysis there have been chosen four meteorological elements: air temperature, cloudiness, precipitation and wind. The material used in this paper was taken from summer seasons from the years 2001, 2002, 2005, 2006. We used meteorological data from the 15th of July to 24th of August from each year – together 164 days. Those seasons were classified into groups, subgroups, types of weather and their frequency. Bellsund region is characterized by relatively homogeneous frequencies of occurring weather groups. In analyzed period there have been noticed only 2 weather groups – T7 and T8 and 5 subgroups – 72, 73, 81, 82, 83. In summer seasons 2001, 2002, 2005, 2006 mostly often noticed weather types were 8301 (21.3%) and 7311 (9.8%).