Atmospheric circulation conditions during winter warm spells in Central Europe

2019
journal article
article
12
dc.abstract.enThe objective of the paper was to characterise the temporal and spatial variability of winter warm spells in Central Europe in the years 1966/1967-2015/2016 and to determine the circulation conditions of their occurrence. The applied data were obtained from the Polish Institute of Meteorology and Water Management, Deutscher Wetterdienst and the National Centre for Environmental Prediction/National Centre for Atmospheric Research. A warm spell was defined as a sequence of at least three warm days, i.e. when the maximum air temperature is higher than the 95th percentile of the probability density function designated from observation. The research has proven that over the study period the air temperature increased in the winter season in Central Europe and this translated into an increase in the number of warm days. An average of 3-5 warm spells was recorded per 10 years. The most numerous warm spells occurred during three winter seasons, i.e. 1989/1990, 2006/2007 and 2015/2016. The occurrence of warm spells was related to positive anomalies of geopotential heights over the study area in the cross section of the entire troposphere. Maximum anomalies appeared at 250 hPa geopotential height, and they developed on average 9 days before the commencement of warm spells over the study area.pl
dc.affiliationWydział Geografii i Geologii : Instytut Geografii i Gospodarki Przestrzennejpl
dc.contributor.authorTomczyk, Arkadiusz M.pl
dc.contributor.authorSulikowska, Agnieszka - 190382 pl
dc.contributor.authorBednorz, Ewapl
dc.contributor.authorPółrolniczak, Marekpl
dc.date.accession2019-08-21pl
dc.date.accessioned2019-08-26T08:04:04Z
dc.date.available2019-08-26T08:04:04Z
dc.date.issued2019pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.additionalBibliogr. s. 1427-1428pl
dc.description.number3pl
dc.description.physical1413-1428pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume96pl
dc.identifier.doi10.1007/s11069-019-03621-4pl
dc.identifier.eissn1573-0840pl
dc.identifier.issn0921-030Xpl
dc.identifier.projectROD UJ / OPpl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/81249
dc.identifier.weblinkhttps://link.springer.com/article/10.1007/s11069-019-03621-4pl
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl*
dc.share.typeinne
dc.subject.enwinter warm spellspl
dc.subject.encirculation conditionspl
dc.subject.engeopotential anomaliespl
dc.subject.enCentral Europepl
dc.subtypeArticlepl
dc.titleAtmospheric circulation conditions during winter warm spells in Central Europepl
dc.title.journalNatural Hazardspl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
The objective of the paper was to characterise the temporal and spatial variability of winter warm spells in Central Europe in the years 1966/1967-2015/2016 and to determine the circulation conditions of their occurrence. The applied data were obtained from the Polish Institute of Meteorology and Water Management, Deutscher Wetterdienst and the National Centre for Environmental Prediction/National Centre for Atmospheric Research. A warm spell was defined as a sequence of at least three warm days, i.e. when the maximum air temperature is higher than the 95th percentile of the probability density function designated from observation. The research has proven that over the study period the air temperature increased in the winter season in Central Europe and this translated into an increase in the number of warm days. An average of 3-5 warm spells was recorded per 10 years. The most numerous warm spells occurred during three winter seasons, i.e. 1989/1990, 2006/2007 and 2015/2016. The occurrence of warm spells was related to positive anomalies of geopotential heights over the study area in the cross section of the entire troposphere. Maximum anomalies appeared at 250 hPa geopotential height, and they developed on average 9 days before the commencement of warm spells over the study area.
dc.affiliationpl
Wydział Geografii i Geologii : Instytut Geografii i Gospodarki Przestrzennej
dc.contributor.authorpl
Tomczyk, Arkadiusz M.
dc.contributor.authorpl
Sulikowska, Agnieszka - 190382
dc.contributor.authorpl
Bednorz, Ewa
dc.contributor.authorpl
Półrolniczak, Marek
dc.date.accessionpl
2019-08-21
dc.date.accessioned
2019-08-26T08:04:04Z
dc.date.available
2019-08-26T08:04:04Z
dc.date.issuedpl
2019
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.additionalpl
Bibliogr. s. 1427-1428
dc.description.numberpl
3
dc.description.physicalpl
1413-1428
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
96
dc.identifier.doipl
10.1007/s11069-019-03621-4
dc.identifier.eissnpl
1573-0840
dc.identifier.issnpl
0921-030X
dc.identifier.projectpl
ROD UJ / OP
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/81249
dc.identifier.weblinkpl
https://link.springer.com/article/10.1007/s11069-019-03621-4
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri*
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
inne
dc.subject.enpl
winter warm spells
dc.subject.enpl
circulation conditions
dc.subject.enpl
geopotential anomalies
dc.subject.enpl
Central Europe
dc.subtypepl
Article
dc.titlepl
Atmospheric circulation conditions during winter warm spells in Central Europe
dc.title.journalpl
Natural Hazards
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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