Circulation anomalies associated with winter temperature extremes in Athens during the period 19002004
We use the long series of temperature observed at the National Observatory of Athens, Greece, to examine the extremes of this element together with associated anomalies in the general circulation of the atmosphere. The 13 extreme-cold and 20 extreme-warm winters during the period 1900-2004 (equal to...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Borntraeger
2008-02-01
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| Series: | Meteorologische Zeitschrift |
| Online Access: | http://dx.doi.org/10.1127/0941-2948/2007/0260 |
| _version_ | 1797332557286604800 |
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| author | Dimitra Founda Harry van Loon |
| author_facet | Dimitra Founda Harry van Loon |
| author_sort | Dimitra Founda |
| collection | DOAJ |
| description | We use the long series of temperature observed at the National Observatory of Athens, Greece, to examine the extremes of this element together with associated anomalies in the general circulation of the atmosphere. The 13 extreme-cold and 20 extreme-warm winters during the period 1900-2004 (equal to or below minus one standard deviation, and equal to or above plus one standard deviation respectively) had opposite pressure anomalies, mainly over the North Atlantic and Eurasia. The temperature extremes at Athens were representative of most of the Mediterranean and the Balkans, and their associated pressure anomalies were robust. The extremes of the Index of the North Atlantic Oscillation (the pressure difference between Gibraltar and Iceland) were not a good indicator of the temperature extremes in the Mediterranean. Rather the extreme temperature anomalies over the Mediterranean region are to a large extent controlled by a bipolar pattern of SLP (see level pressure) anomalies with centers over the British Isles and the Arctic. |
| first_indexed | 2024-03-08T07:50:36Z |
| format | Article |
| id | doaj.art-32150a7d765f42afad6986e0f4a97851 |
| institution | Directory Open Access Journal |
| issn | 0941-2948 |
| language | English |
| last_indexed | 2024-03-08T07:50:36Z |
| publishDate | 2008-02-01 |
| publisher | Borntraeger |
| record_format | Article |
| series | Meteorologische Zeitschrift |
| spelling | doaj.art-32150a7d765f42afad6986e0f4a978512024-02-02T14:46:20ZengBorntraegerMeteorologische Zeitschrift0941-29482008-02-01171555910.1127/0941-2948/2007/026056573Circulation anomalies associated with winter temperature extremes in Athens during the period 19002004Dimitra FoundaHarry van LoonWe use the long series of temperature observed at the National Observatory of Athens, Greece, to examine the extremes of this element together with associated anomalies in the general circulation of the atmosphere. The 13 extreme-cold and 20 extreme-warm winters during the period 1900-2004 (equal to or below minus one standard deviation, and equal to or above plus one standard deviation respectively) had opposite pressure anomalies, mainly over the North Atlantic and Eurasia. The temperature extremes at Athens were representative of most of the Mediterranean and the Balkans, and their associated pressure anomalies were robust. The extremes of the Index of the North Atlantic Oscillation (the pressure difference between Gibraltar and Iceland) were not a good indicator of the temperature extremes in the Mediterranean. Rather the extreme temperature anomalies over the Mediterranean region are to a large extent controlled by a bipolar pattern of SLP (see level pressure) anomalies with centers over the British Isles and the Arctic.http://dx.doi.org/10.1127/0941-2948/2007/0260 |
| spellingShingle | Dimitra Founda Harry van Loon Circulation anomalies associated with winter temperature extremes in Athens during the period 19002004 Meteorologische Zeitschrift |
| title | Circulation anomalies associated with winter temperature extremes in Athens during the period 19002004 |
| title_full | Circulation anomalies associated with winter temperature extremes in Athens during the period 19002004 |
| title_fullStr | Circulation anomalies associated with winter temperature extremes in Athens during the period 19002004 |
| title_full_unstemmed | Circulation anomalies associated with winter temperature extremes in Athens during the period 19002004 |
| title_short | Circulation anomalies associated with winter temperature extremes in Athens during the period 19002004 |
| title_sort | circulation anomalies associated with winter temperature extremes in athens during the period 19002004 |
| url | http://dx.doi.org/10.1127/0941-2948/2007/0260 |
| work_keys_str_mv | AT dimitrafounda circulationanomaliesassociatedwithwintertemperatureextremesinathensduringtheperiod19002004 AT harryvanloon circulationanomaliesassociatedwithwintertemperatureextremesinathensduringtheperiod19002004 |