TEMPERATURE INVERSIONS IN TRANSYLVANIA
This paper is based on meteorological stations data and statistical methods. Daily maximum and minimum temperatures (from the period 2004-2013) were studied from 22 meteorological stations of Transylvania (s.s.). Factor analysis reveals that temperature inversions are present mainly in winter. Two d...
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| Format: | Article |
| Language: | English |
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Cluj University Press
2015-03-01
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| Series: | Aerul şi Apa: Componente ale Mediului |
| Subjects: | |
| Online Access: | http://aerapa.conference.ubbcluj.ro/2015/PDF/51_RUSZ_388_395.pdf |
| _version_ | 1797425956726505472 |
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| author | RUSZ OTTILIA |
| author_facet | RUSZ OTTILIA |
| author_sort | RUSZ OTTILIA |
| collection | DOAJ |
| description | This paper is based on meteorological stations data and statistical methods. Daily maximum and minimum temperatures (from the period 2004-2013) were studied from 22 meteorological stations of Transylvania (s.s.). Factor analysis reveals that temperature inversions are present mainly in winter. Two dominant factors were found, the first is the presence of the depressionar areas, and the second the neighbouring with high relief forms. It is remarkable that Târnăveni (523 m altitude) have approximately the same factor loading for these two factors (that can explain why there are frequently higher minimum temperatures compared to nearest station, Târgu Mureş - 308 m). Additional, daily maximum and minimum temperature from the period 1978-2013 were studied as regard Joseni (750 m) and Bucin (1282 m). Half of the cases, minimum temperature in Joseni is lower than in Bucin. There is no significant trend (at 0.05 levels) regarding yearly number of temperature inversion (taking into account maximum and minimum temperatures). Both in case of maximum and minimum temperature of these two stations, in most cases temperature inversions are related to “anticyclone located east of the Carpathian Basin” and “anticyclone located over the Carpathian Basin” (based on Péczely’s circulation types). To be mentioned that all minimum temperatures under -25 ºC registered at Joseni in that period, were due to temperature inversions. On 3 February 1996, in Bucin minimum temperature was -6.4 ºC, while in Joseni have been recorded −27.6 ºC. |
| first_indexed | 2024-03-09T08:23:27Z |
| format | Article |
| id | doaj.art-32d401dccfd54f2bb8d35b4f57d1fef0 |
| institution | Directory Open Access Journal |
| issn | 2067-743X |
| language | English |
| last_indexed | 2024-03-09T08:23:27Z |
| publishDate | 2015-03-01 |
| publisher | Cluj University Press |
| record_format | Article |
| series | Aerul şi Apa: Componente ale Mediului |
| spelling | doaj.art-32d401dccfd54f2bb8d35b4f57d1fef02023-12-02T21:36:44ZengCluj University PressAerul şi Apa: Componente ale Mediului2067-743X2015-03-01201538839510.17378/AWC2015_51TEMPERATURE INVERSIONS IN TRANSYLVANIARUSZ OTTILIA 0NMA, Regional Meteorological Centre of South Transylvania, Târgu Mureş Meteorological Station, Romania This paper is based on meteorological stations data and statistical methods. Daily maximum and minimum temperatures (from the period 2004-2013) were studied from 22 meteorological stations of Transylvania (s.s.). Factor analysis reveals that temperature inversions are present mainly in winter. Two dominant factors were found, the first is the presence of the depressionar areas, and the second the neighbouring with high relief forms. It is remarkable that Târnăveni (523 m altitude) have approximately the same factor loading for these two factors (that can explain why there are frequently higher minimum temperatures compared to nearest station, Târgu Mureş - 308 m). Additional, daily maximum and minimum temperature from the period 1978-2013 were studied as regard Joseni (750 m) and Bucin (1282 m). Half of the cases, minimum temperature in Joseni is lower than in Bucin. There is no significant trend (at 0.05 levels) regarding yearly number of temperature inversion (taking into account maximum and minimum temperatures). Both in case of maximum and minimum temperature of these two stations, in most cases temperature inversions are related to “anticyclone located east of the Carpathian Basin” and “anticyclone located over the Carpathian Basin” (based on Péczely’s circulation types). To be mentioned that all minimum temperatures under -25 ºC registered at Joseni in that period, were due to temperature inversions. On 3 February 1996, in Bucin minimum temperature was -6.4 ºC, while in Joseni have been recorded −27.6 ºC.http://aerapa.conference.ubbcluj.ro/2015/PDF/51_RUSZ_388_395.pdftemperature inversionsTransylvaniafactor analysistrend |
| spellingShingle | RUSZ OTTILIA TEMPERATURE INVERSIONS IN TRANSYLVANIA Aerul şi Apa: Componente ale Mediului temperature inversions Transylvania factor analysis trend |
| title | TEMPERATURE INVERSIONS IN TRANSYLVANIA |
| title_full | TEMPERATURE INVERSIONS IN TRANSYLVANIA |
| title_fullStr | TEMPERATURE INVERSIONS IN TRANSYLVANIA |
| title_full_unstemmed | TEMPERATURE INVERSIONS IN TRANSYLVANIA |
| title_short | TEMPERATURE INVERSIONS IN TRANSYLVANIA |
| title_sort | temperature inversions in transylvania |
| topic | temperature inversions Transylvania factor analysis trend |
| url | http://aerapa.conference.ubbcluj.ro/2015/PDF/51_RUSZ_388_395.pdf |
| work_keys_str_mv | AT ruszottilia temperatureinversionsintransylvania |