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

Efthymiadis, D, Goodess, CM and Jones, PD (2011) Trends in Mediterranean gridded temperature extremes and large-scale circulation influences. Natural Hazards and Earth System Science, 11 (8). pp. 2199-2214. ISSN 1684-9981

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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.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Related URLs:
Depositing User: Deborah Clemitshaw
Date Deposited: 23 Aug 2011 13:58
Last Modified: 09 Oct 2017 15:53
URI: https://ueaeprints.uea.ac.uk/id/eprint/34540
DOI: 10.5194/nhess-11-2199-2011

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