Synoptic conditions of snow occurrence in Budapest

Daily circulation patterns responsible for snow occurrence in Budapest were analysed. Three types of circulation patterns were distinguished, using a Principal Component Analysis and clustering technique, for days with snowfalls and snow cover persistence. Low pressure systems located over the Itali...

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Main Author: Ewa Bednorz
Format: Article
Language:English
Published: Borntraeger 2008-02-01
Series:Meteorologische Zeitschrift
Online Access:http://dx.doi.org/10.1127/0941-2948/2008/0262
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author Ewa Bednorz
author_facet Ewa Bednorz
author_sort Ewa Bednorz
collection DOAJ
description Daily circulation patterns responsible for snow occurrence in Budapest were analysed. Three types of circulation patterns were distinguished, using a Principal Component Analysis and clustering technique, for days with snowfalls and snow cover persistence. Low pressure systems located over the Italian Peninsula (southwest of Budapest) are characteristic for days with snowfalls. Such lows coming from the west generate warm fronts and are a source of humidity necessary for the snowfalls. At the same time, higher pressure extends north or east of the Carpathian Basin and brings polar continental air masses and consequently low temperature. Snow persistence also requires temperature below zero. This condition is fulfilled at the airflow direction from the east (or south east) which brings frosty air from the interior of the continent. A winter high pressure system extending over the Carpathian Basin also generates low temperature, mainly due to the nocturnal radiation conditioned by a clear sky.
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spelling doaj.art-890a9caf93464451a6b4a7442205ad1e2024-02-02T14:46:20ZengBorntraegerMeteorologische Zeitschrift0941-29482008-02-01171394510.1127/0941-2948/2008/026256568Synoptic conditions of snow occurrence in BudapestEwa BednorzDaily circulation patterns responsible for snow occurrence in Budapest were analysed. Three types of circulation patterns were distinguished, using a Principal Component Analysis and clustering technique, for days with snowfalls and snow cover persistence. Low pressure systems located over the Italian Peninsula (southwest of Budapest) are characteristic for days with snowfalls. Such lows coming from the west generate warm fronts and are a source of humidity necessary for the snowfalls. At the same time, higher pressure extends north or east of the Carpathian Basin and brings polar continental air masses and consequently low temperature. Snow persistence also requires temperature below zero. This condition is fulfilled at the airflow direction from the east (or south east) which brings frosty air from the interior of the continent. A winter high pressure system extending over the Carpathian Basin also generates low temperature, mainly due to the nocturnal radiation conditioned by a clear sky.http://dx.doi.org/10.1127/0941-2948/2008/0262
spellingShingle Ewa Bednorz
Synoptic conditions of snow occurrence in Budapest
Meteorologische Zeitschrift
title Synoptic conditions of snow occurrence in Budapest
title_full Synoptic conditions of snow occurrence in Budapest
title_fullStr Synoptic conditions of snow occurrence in Budapest
title_full_unstemmed Synoptic conditions of snow occurrence in Budapest
title_short Synoptic conditions of snow occurrence in Budapest
title_sort synoptic conditions of snow occurrence in budapest
url http://dx.doi.org/10.1127/0941-2948/2008/0262
work_keys_str_mv AT ewabednorz synopticconditionsofsnowoccurrenceinbudapest