Warm spells in Northern Europe in relation to atmospheric circulation

Tomczyk, Arkadiusz M.; Piotrowski, Piotr; Bednorz, Ewa

doi:10.1007/s00704-015-1727-0

Cited by 20 publications

(17 citation statements)

References 53 publications

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“…The increase in Tmax shown in the article was analogous to the results obtained for Central Europe, which were 0.52°C/10 years , and for Northern Europe, which were 0.38°C/10 years (Tomczyk, Piotrowski, Bednorz 2016). Similarly, in the research study of Twardosz and Kossowska-Cezak (2015) it was shown that the summer of 1974 in Arkhangelsk stood out against the period and was considered an extremely hot summer.…”

Section: Discussionsupporting

confidence: 79%

Atmospheric circulation during heat waves in Eastern Europe

Tomczyk

2017

Geografie

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This article aims to describe heat waves in Eastern Europe and to determine the synoptic situations which cause them. In this article, a hot day is defined as the one with a maximum temperature above the 95th percentile of all the values in the analysed period, and a heat wave is considered as a sequence of at least 5 such days. In the analysed period and within the investigated area, from 24 (Kaliningrad) to 55 (Kharkiv) heat waves were observed. The longest heat wave was recorded in Moscow in 2010, lasting as many as 45 days. In the analysed period, an increase in frequency and length of heat waves was observed within the analysed area. The occurrence of heat waves was connected with a high pressure system located over the eastern part of the continent, during which positive anomalies of sea level pressure and the 500 hPa geopotential height as well as positive T850 anomalies were recorded.

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Section: Discussionsupporting

confidence: 79%

Atmospheric circulation during heat waves in Eastern Europe

Tomczyk

2017

Geografie

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“…The recorded changes are similar to the ones mentioned in previous research studies conducted in the Iberian Peninsula, where the mean gain in warm days between 1950 and 2006 oscillated around 1.6% ± 0.3% days per decade [2] and was higher than the average increase in the global scale, which was 0.71% ± 0.35% days per decade [46]. The indicated changes are concordant with the ones occurring in Central [10], Northern [47] and Southern Europe [48]. Similar trends were shown by other authors carrying out their studies within particular countries, e.g., Czech Republic [49], Portugal [3], Serbia [8] and Ukraine [7].…”

Section: Discussion and Summarysupporting

confidence: 75%

Circulation Conditions’ Effect on the Occurrence of Heat Waves in Western and Southwestern Europe

2017

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This article aims to describe the occurrence of heat waves in Western and Southwestern Europe in the period 1976-2015 and determining pressure patterns that cause a persistence of hot days. A hot day was defined as a day on which the daily maximum air temperature was higher than the 95th annual percentile; and a heat wave was recognised as a sequence of at least five days of the abovementioned category. In the discussed multiannual period, this threshold ranged from 23.5 • C in Brest to 38.9 • C in Seville. Within the analysed area, there were from 14 (Bilbao) to 54 (Montélimar) heat waves observed. The longest heat wave took place in 2003 in Nice and lasted 49 days (14 July-31 August). The occurrence of heat waves within the analysed area was related to the ridge of high pressure located over the area of the study, providing strong solar radiation flux due to cloudlessness or a small cloud cover. Positive SLP, z500 hPa and T850 anomalies occurred over the majority of the research area.

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“…in 1994, 2003, 2006, 2010, 2014 and 2015. As has already been shown in previous studies, their occurrence was associated with much larger anomalies of atmospheric pressure field and air temperature than on average during heat waves (Tomczyk 2016;Tomczyk, Piotrowski, Bednorz 2016;Tomczyk, Półrolniczak, Bednorz 2017;Tomczyk 2017).…”

Section: Discussion and Summarysupporting

confidence: 74%

The occurrence of heat waves in Europe and their circulation conditions

2019

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The objective of the paper was to characterize the occurrence of heat waves in Europe between 1976 and 2015 and to determine circulation conditions causing their occurrence. The heat waves were recognized as a sequence of at least 5 consecutive hot days. The hot day was defined as a day on which daily maximum air temperature was higher than 95th percentile of all the values in the analyzed period. The conducted research showed an increase in the number of heat waves and their duration in the analyzed period. The longest heat wave occurred in 2010, in Moscow, which lasted 45 days. The most intense changes were observed in the eastern and south-eastern regions. The occurrence of heat waves was mainly connected with positive anomalies of atmospheric pressure at sea level, geopotential height of 500 hPa, and temperature on isobaric surface 850 hPa.

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Warm spells in Northern Europe in relation to atmospheric circulation

Cited by 20 publications

References 53 publications

Atmospheric circulation during heat waves in Eastern Europe

Atmospheric circulation during heat waves in Eastern Europe

Circulation Conditions’ Effect on the Occurrence of Heat Waves in Western and Southwestern Europe

The occurrence of heat waves in Europe and their circulation conditions

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