Mediterranean cyclones, the atmospheric moisture content and precipitation in Poland

Degirmendžić, Jan; Kożuchowski, Krzysztof

doi:10.7163/gpol.0075

Cited by 10 publications

(6 citation statements)

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“…For shorter interval, 1973-2005, increasing trend of precipitable water was especially higher during spring in central Europe and over the British Isles and during summer in the north and east of Europe. However, Degirmendžić and Kożuchowski (2017) studied the relationship between the Mediterranean cyclones, precipitable water and precipitation in Poland for the period 1958-2008 and found that the number of cyclones from the Mediterranean Sea basin, which have an impact on precipitation in Poland, decreased. Also, the mean precipitable water content in the atmosphere over Poland has decreased.…”

Section: Changes In Extreme Precipitation For Aggregated Data From Almentioning

confidence: 99%

“…Zolina et al 2010;Zolina 2012;van den Besselaar et al 2013, Fleig et al 2015 as well as regional or national scales (e.g. Lorenc and Olecka 2006;Bartholy and Pongrácz 2007;Kysely 2009;Ustrnul and Czekierda 2009;Łupikasza 2010;Łupikasza et al 2011;Hattermann et al 2012;Karagiannidis et al 2012;Arnone et al 2013;Piccarreta et al 2013;Niedźwiedź et al 2015;Scherrer et al 2016;Martinkova and Hanel 2016;Degirmendžić and Kożuchowski 2017).…”

Section: Introductionmentioning

confidence: 99%

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Observed changes in extreme precipitation in Poland: 1991–2015 versus 1961–1990

Pińskwar

Choryński

Graczyk

et al. 2018

Theor Appl Climatol

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Several episodes of extreme precipitation excess and extreme precipitation deficit, with considerable economic and social impacts, have occurred in Europe and in Poland in the last decades. However, the changes of related indices exhibit complex variability. This paper analyses changes in indices related to observed abundance and deficit of precipitated water in Poland. Among studied indices are maximum seasonal 24-h precipitation for the winter half-year (Oct.-March) and the summer half-year (Apr.-Sept.), maximum 5-day precipitation, maximum monthly precipitation and number of days with intense or very intense precipitation (respectively, in excess of 10 mm or 20 mm per day). Also, the warm-seasonal maximum number of consecutive dry days (longest period with daily precipitation below 1 mm) was examined. Analysis of precipitation extremes showed that daily maximum precipitation for the summer half-year increased for many stations, and increases during the summer half-year are more numerous than those in the winter half-year. Also, analysis of 5-day and monthly precipitation sums show increases for many stations. Number of days with intense precipitation increases especially in the north-western part of Poland. The number of consecutive dry days is getting higher for many stations in the summer half-year. Comparison of these two periods: colder 1961-1990 and warmer 1991-2015, revealed that during last 25 years most of statistical indices, such as 25th and 75th percentiles, median, mean and maximum are higher. However, many changes discussed in this paper are weak and statistically insignificant. The findings reported in this paper challenge results based on earlier data that do not include 2007-2015.

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Section: Changes In Extreme Precipitation For Aggregated Data From Almentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Observed changes in extreme precipitation in Poland: 1991–2015 versus 1961–1990

Pińskwar

Choryński

Graczyk

et al. 2018

Theor Appl Climatol

View full text Add to dashboard Cite

show abstract

“…Cyclone systems transported moisture north from areas found over the Mediterranean Sea characterized by rapid evaporation. While Central Europe only received at most 80% of the moisture from the source area, the rest was lost along the way due to changes in the air mass and advection that led to atmospheric precipitation [36]. TCWV anomalies suggested a moisture surplus, but the orographic barrier of the Carpathian and Sudeten mountain chains triggered positive IWVF anomalies on the windward side (Figure 9a).…”

Section: Role Of Atmospheric Circulationmentioning

confidence: 99%

Atmospheric Moisture Content over Europe and the Northern Atlantic

2018

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Water vapor plays a major role in the process of radiation, cloud formation, energy exchange within a system, and remains a key component of the Earth's atmosphere. The purpose of this study is to examine the water vapor content of the troposphere over Europe and the Northern Atlantic. Both temporal and spatial differences were examined for total column water vapor (TCWV) and vertically integrated water vapor flux (IWVF) based on ERA-Interim reanalysis data. The statistical relationship between circulation patterns, as expressed by empirical orthogonal function (EOF) modes, and TCWV were examined, as were statistical relationships between distinguished advection types and TCWV and IWVF. The study confirmed the significance of atmospheric circulation in the formation of moisture content in the winter season (i.e., January) and its markedly lower impact in other seasons. The relationships noted in the study are characterized by statistically significant spatial differentiation. Spatial pattern analysis was used to identify six regions with different moisture content over the course of the year. The boundaries of the regions confirm the significant role of local factors impacting moisture content.

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“…With an area of 1,648,195 km 2 , Iran is a relatively large territory in South-west Asia, located between approximately 25°N and 40°N and 45°E and 64°E. The main humid sources of precipitation in Iran are the western (Mediterranean cyclones) and south-western (Red Sea trough) systems in the cold season and the south-eastern (Gang low pressure) system in the warm season (Degirmendžić, J. and Kożuchowski, K. 2017). The Zagros Mountains in the West and the Alborz Mountains in the North, as well, as other vast water bodies (i.e.…”

Section: Methodsmentioning

confidence: 99%

Anomalies of precipitation and drought in objectively derived climate regions of Iran

Ghaedi

2021

HunGeoBull

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By regionalizing precipitation in 113 synoptic stations in Iran, the characteristics of precipitations and the occurrence of droughts in each region were investigated over a period of 30 years, 1988–2017. Elevation, latitude and distance from moisture source have caused strong East–West and South–North gradients of precipitation across the territory of Iran so that the average annual precipitation increases from 55 mm in the eastern and central regions to 1,730 mm in the south-west coast of the Caspian Sea. Hierarchical cluster analysis identified six precipitation regions in Iran, including the arid, semi-arid, moderate, semi-humid, humid, and high humid regions. An investigation of the standardized precipitation index (SPI) showed that the trend in about 19 per cent of stations was significantly decreasing. It was non-significantly decreasing in 65 per cent, significantly increasing in less than 1 per cent, and non-significantly increasing in 15 per cent of the stations. While the occurrence of drought has increased in most parts of Iran, it has decreased in some stations only in the northern strip of the country. The line slope in more than 84 per cent of the stations represent negative values in SPI, which confirms an increase in the occurrence of droughts in Iran.

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Mediterranean cyclones, the atmospheric moisture content and precipitation in Poland

Cited by 10 publications

References 0 publications

Observed changes in extreme precipitation in Poland: 1991–2015 versus 1961–1990

Observed changes in extreme precipitation in Poland: 1991–2015 versus 1961–1990

Atmospheric Moisture Content over Europe and the Northern Atlantic

Anomalies of precipitation and drought in objectively derived climate regions of Iran

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