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Recent trend analysis of mean air temperature in Greece based on homogenized data

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Abstract

Numerous studies analyze the temperature variations in the Mediterranean area due to the anticipated impact of climate change in this part of the world. A number of studies examined the temperature climate in Greece, but few are based on a large number of synoptic stations covering all regions and climatic zones and even fewer are based on homogenized data set series, despite the fact that climatological studies must use high-quality homogeneous data series. The present work reviews previous studies dealing with climatic changes in Greece and addresses changes of mean air temperature, based on a large set of homogenized data from 52 synoptic stations. A statistically significant negative trend during 1960–1976 and a positive one during 1977–2004 were revealed. During 1960–1976, the lowest negative annual temperature trend is observed in Crete. During 1977–2004, the northern region of Greece was characterized by prominent annual warming, whereas the north and central Aegean Sea and the semi-mountainous area were characterized by the lowest warming. All stations are characterized by high seasonal trends in summer; the most extreme trends are observed in the northern and eastern regions and in the Attica area. Positive temperature trends occur from May to October, while negative trends dominate from November to February. The most pronounced warming is recorded in June and July, and the most strongly decreasing trend occurs in November. Annual temperature trends in northern Greece follow the hemispheric pattern, and the overall summer warming in Greece is greater than the hemisphere’s.

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  1. Hellenic National Meteorological Service, GR-167 77, Hellinikon, Greece

    A. Mamara & M. Anadranistakis

  2. Laboratory of Atmospheric Physics, University of Patras, University Campus, GR-265 00, Patras, Greece

    A. Mamara & A. Α. Argiriou

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Mamara, A., Argiriou, A.Α. & Anadranistakis, M. Recent trend analysis of mean air temperature in Greece based on homogenized data. Theor Appl Climatol 126, 543–573 (2016). https://doi.org/10.1007/s00704-015-1592-x

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