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The influence of atmospheric circulation on the occurrence of dry and wet periods in Central Poland in 1954–2018
Abstract
This work presents the influence of atmospheric circulation on the occurrence of dry and wet periods in the central Polish region of Kujawy. The material on which the authors relied encompassed monthly totals of precipitation obtained from 10 weather stations in the period 1954–2018. Both dry and wet periods have been identified on the basis of monthly values of the Standardised Precipitation Index (SPI). Additionally, the calendar of circulation types over Central Poland was used to determine the atmospheric circulation indices: western (W), southern (S) and cyclonicity (C). The analyses have indicated that the region concerned experiences low precipitation totals in comparison with the rest of Poland. According to the circulation indices W, S and C, for Central Poland, the air mass advection from the West prevails over that from the East. Moreover, a slightly more frequent inflow of air from the South than from the North has been observed. The frequency of anticyclonic situations is higher than that of the cyclonic types in this part of Europe. Drought spells occurred in the study area at a clear dominance of anticyclonic circulation, with the inflow of air mostly from the North and with increased westerly circulation. On the other hand, the occurrence of wet periods was mainly influenced by cyclonic circulation during the advection of the masses from the South and West. Dry and wet periods accounted for 28% and 27% of the study period, respectively.
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Authors (4)
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Andrzej Araźny
- Uniwersytet Mikołaja Kopernika, Wydział Nauk o Ziemi i Gospodarki Przestrzennej
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Arkadiusz Bartczak
- Polska Akademia Nauk, Instytut Geografii i Przestrzennego Zagospodarowania
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Rafał Maszewski
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s00704-021-03780-0
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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THEORETICAL AND APPLIED CLIMATOLOGY
no. 146,
pages 1079 - 1095,
ISSN: 0177-798X - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Araźny A., Bartczak A., Maszewski R., Krzemiński M.: The influence of atmospheric circulation on the occurrence of dry and wet periods in Central Poland in 1954–2018// THEORETICAL AND APPLIED CLIMATOLOGY -Vol. 146, (2021), s.1079-1095
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s00704-021-03780-0
- Verified by:
- Gdańsk University of Technology
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