Changes in temperature extremes over Italy in the last 44 years

Toreti, Andrea; Desiato, F.

doi:10.1002/joc.1576

Cited by 85 publications

(69 citation statements)

References 34 publications

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“…These increasing trends of hot extremes over the last 20 yr are particularly strong over the Central and Eastern Mediterranean and also in the Black Sea region. This intensification of warming trends is consistent with earlier studies of temperature extremes for Italy that indicate a change point between the end of the 1970s and beginning of the 1980s (Bartolini et al, 2008;Toreti and Desiato, 2008). Potential causes of the enhanced trends are discussed in Sects.…”

Section: Trends In the Indices Of Temperature Extremessupporting

confidence: 90%

“…Moreover, the changes are not always steady or monotonic. Thus, other studies have focused on particular subregions of the Mediterranean such as Spain (Brunet et al, 2007;Rodríguez-Puebla et al, 2010), Italy (Baldi et al, 2006;Bartolini et al, 2008;Toreti and Desiato, 2008), Eastern Mediterranean (Founda et al, 2004;Kostopoulou and Jones, 2005;Kuglitsch et al, 2010), and the Levant and northern parts of Egypt and Libya (Domroes and El-Tantawi, 2005;Zhang et al, 2005;Sensoy et al, 2007;El Kenawy et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Trends in Mediterranean gridded temperature extremes and large-scale circulation influences

Efthymiadis

Goodess

Jones

2011

Nat. Hazards Earth Syst. Sci.

110

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Abstract. Two recently-available daily gridded datasets are used to investigate trends in Mediterranean temperature extremes since the mid-20th century. The underlying trends are found to be generally consistent with global trends of temperature and their extremes: cold extremes decrease and warm/hot extremes increase. This consistency is better manifested in the western part of the Mediterranean where changes are most pronounced since the mid-1970s. In the eastern part, a cooling is observed, with a near reversal in the last two decades. This inter-basin discrepancy is clearer in winter, while in summer changes are more uniform and the west-east difference is restricted to the rate of increase of warm/hot extremes, which is higher in central and eastern parts of the Mediterranean over recent decades. Linear regression and correlation analysis reveals some influence of major large-scale atmospheric circulation patterns on the occurrence of these extremes -both in terms of trend and interannual variability. These relationships are not, however, able to account for the most striking features of the observations -in particular the intensification of the increasing trend in warm/hot extremes, which is most evident over the last 15-20 yr in the Central and Eastern Mediterranean.

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Section: Trends In the Indices Of Temperature Extremessupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Trends in Mediterranean gridded temperature extremes and large-scale circulation influences

Efthymiadis

Goodess

Jones

2011

Nat. Hazards Earth Syst. Sci.

110

View full text Add to dashboard Cite

show abstract

“…While analysing temperature extreme indices in northeast Spain, El Kenawy et al (2011) also observed more prevalent changes in hot extremes than in cold extremes. Toreti and Desiato (2008) analysed changes in temperature extremes over Italy and showed a cooling trend until the end of the 1970s followed by a warming trend over the last 25 yr. The most significant results they obtained were related to an increased number of summer days and tropical nights.…”

Section: Introductionmentioning

confidence: 99%

Recent trends in daily temperature extremes over southern Montenegro (1951–2010)

Burić

Luković

Ducic

et al. 2014

Nat. Hazards Earth Syst. Sci.

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Abstract. Montenegro so far has been poorly investigated in terms of climate extremes. The aim of this paper was to analyse the extreme ETCCDI (Expert Team on Climate Change Detection and Indices) temperature indices in the Mediterranean region of Montenegro for the period of 1951-2010. Four stations in the coastal area of Montenegro have been analysed: Herceg Novi, Ulcinj, Budva and Bar. Two periods (before 1980 and after 1980) were separately investigated in this study due to a well-known climate shift that occurred in the late 1970s. Seven indices of temperature extremes have been chosen. The trend was analysed using a MannKendall non-parametric test, while the slope was estimated using Sen's slope estimator. A negative trend has been calculated for cold nights and cold days at almost all stations. The most significant positive trends were obtained for warm conditions. The two separately investigated periods have shown contrasting temperature trends.

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“…Generally, most studies have focused on the North Hemisphere, such as North America (Kunkel, 2003;Vincent and Mekis, 2006), Europe (Klein Tank and Können, 2003;Toreti and Desiato, 2008), Asia (Yang et al, 2008;Pal and Al-Tabbaa, 2009;Rahimzadeh et al, 2009;Zhai et al, 2010;Gemmer et al, 2011), possibly due to huge economic losses and social effects arising from climate extremes as well as the data availability. The results of many studies indicate that the frequency and intensity of extreme low temperature events decrease significantly; inversely, distinct increases are found in extreme high temperature events but usually those trends are weaker (Nandintsetseg et al, 2007;Rusticucci and Renom, 2008;Rahimzadeh et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Trends in temperature and precipitation extremes over Circum-Bohai-Sea region, China

Jiang

Wang

2012

Chin. Geogr. Sci.

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Trends in temperature and precipitation extremes from 1961 to 2008 have been investigated over Circum-Bohai-Sea region, China using daily temperature and precipitation data of 63 meteorological stations. The results show that at most stations, there is a significant increase in the annual frequency of warm days and warm nights, as well as a significant decrease in the annual frequency of cold days, cold nights, frost days, and annual diurnal temperature range (DTR). Their regional averaged changes are 2.06 d/10yr, 3.95 d/10yr, -1.88 d/10yr, -4.27 d/10yr, -4.21 d/10yr and -0.20℃/10yr, respectively. Seasonal changes display similar patterns to the annual results, but there is a large seasonal difference. A significant warming trend is detected at both annual and seasonal scales, which is more contributed by changes of indices defined by daily minimum temperature than those defined by daily maximum temperature. For precipitation indices, the regional annual extreme precipitation displays a weak decrease in terms of magnitude and frequency, i.e. extreme precipitation days (RD95p), intensity (RINTEN), proportion (RPROP) and maximum consecutive wet days (CWD), but a slight increase in the maximum consecutive dry days (CDD), which are consistent with changes of annual total precipitation (PRCPTOT). Seasonally, PRCPTOT and RD95p both exhibit an increase in spring and a decrease in other seasons with the largest decrease in summer, but generally not significant. In summary, this study shows a pronounced warming tendency at the less rainy period over Circum-Bohai-Sea region, which may affect regional economic development and ecological protection to some extent.

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Changes in temperature extremes over Italy in the last 44 years

Cited by 85 publications

References 34 publications

Trends in Mediterranean gridded temperature extremes and large-scale circulation influences

Trends in Mediterranean gridded temperature extremes and large-scale circulation influences

Recent trends in daily temperature extremes over southern Montenegro (1951–2010)

Trends in temperature and precipitation extremes over Circum-Bohai-Sea region, China

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