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(Article of periodic en Anglais - 2013)

Document title

The occurrence of atmospheric thaw in Poland over the last 50 years

Authors(s) and Affiliation(s)

CZARNECKA M. (1) ; NIDZGORSKA-LENCEWICZ J. (1) ;
(1) West Pomeranian Univ. of Technology, Dept. of Meteorology and Climatology, Szczecin, POLOGNE

Abstract

The study is concerned with the temporal and spatial characterisation of atmospheric thaw variability in Poland. The phenomenon was described on the basis of mean daily values of air temperature for the winter months October-March over the period 1960/61-2009/10 obtained from 34 meteorological stations. It has been shown that atmospheric thaws occur on average as soon as 10 days after the first instance of a decrease in temperature below 0°C lasting at least 3 days. Atmospheric thaws are a constant element of the climate in Poland and occur with a frequency of 30-45% of the calendar winter (December-February) and 30% to almost 50% of the period of the thermic winter. Thaws are most common in the western part of Poland, particularly in the north-west. The spatial distribution of thaw is strongly dependent on longitude and less on height above sea level. Multiyear variability of thaw days is determined by atmospheric circulation. The role of circulation expressed by NAO index in the explanation of the variability of thaw occurrence was statistically insignificant

Source

Article of periodic

published at : Geographia polonica / ISSN 0016-7282 / CODEN GGPLAE

Editor : Państwowe Wydawnictwo Naukowe, Warszawa - POLOGNE (1964)

Millesime : 2013, vol. 86, no4 [pp. 327-340]

Bibliographic references : 42 ref.

Collation : 8 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 12059

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.7163/GPol.2013.27

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28424452 : Permanent link - XML version
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