Theoretical and Applied Climatology

, Volume 91, Issue 1–4, pp 51–58 | Cite as

Temperature trend over Italy from 1961 to 2004

  • A. Toreti
  • F. Desiato
Article

Summary

In order to evaluate the temperature trend over Italy, minimum and maximum daily temperatures reported by SYREP messages from 49 meteorological stations of the national air force weather service from 1961 to 2004 have been collected, controlled and used to calculate the annual series of mean temperature anomalies over Italy, with respect to the 30-years climatological period 1961–1990. Monthly temperature series were homogenized in order to eliminate the effects of non-climatic factors. Then, three trend models (linear, piecewise and sloped steps) were applied and the trends of mean temperature and average minimum and maximum temperature, together with their confidence intervals, were estimated. The results indicate a negative trend for the period 1961–1981, a more pronounced positive trend from 1981 to 2004, and an increase of the average daily temperature range for the whole period.

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References

  1. Alexandersson, H, Moberg, A 1997Homogenization of Swedish temperature dataInt J Climatol172554CrossRefGoogle Scholar
  2. Balling, RC,Jr, Vose, RS, Weber, G-R 1998Analysis of long-term European temperature records: 1751–1995Clim Res10193200CrossRefGoogle Scholar
  3. Brockwell, PJ, Davis, RA 2002Introduction to time series and forecastingSpringerNew York434Google Scholar
  4. Brunet, M, Sigró, J, Saladié, O, Aguilar, E, Jones, PD, Moberg, A, Walther, A, López, D 2005Long-term change in the mean and extreme state of surface air temperature over Spain (1850–2003)Geophys Res Abstracts704042Google Scholar
  5. Brunetti, M, Maugeri, M, Nanni, T 2000aVariations of temperature and precipitation in Italy from 1866 to 1995Theor Appl Climatol65165174CrossRefGoogle Scholar
  6. Brunetti, M, Buffoni, L, Maugeri, M, Nanni, T 2000bTrends of minimum and maximum daily temperatures in Italy from 1865 to 1996Theor Appl Climatol664960CrossRefGoogle Scholar
  7. Guilderson, TP, Schrag, DP 1998Abrupt shift in subsurface temperatures in the tropical Pacific associated with changes in El NiñoScience281240243CrossRefGoogle Scholar
  8. IPCC (2001) Climate Change 2001: The Scientific basis. Contribution of the Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change. In: Houghton JT, Ding Y, Griggs DJ, Noguer M, van der Linden PJ, Dai X, Maskell K, Johnson CA (eds) Cambridge, United Kingdom and New York, NY, USA: Cambridge University Press, 881 ppGoogle Scholar
  9. Jones PD, Parker DE, Osborn TJ, Briffa KR (2005) Global and hemispheric temperature anomalies land and marine instrumental records. In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., USAGoogle Scholar
  10. Klein Tank, AMG,  et al. 2002Daily dataset of 20th century surface air temperature and precipitation series for the European Climate AssessmentInt J Climatol2214411453CrossRefGoogle Scholar
  11. Maugeri, M, Nanni, T 1998Surface air temperature variations in Italy: recent trends and an update to 1993Theor Appl Climatol61191196CrossRefGoogle Scholar
  12. McKitrick, R 2002Inference about trends in temperature data after controlling for serial correlation and heteroskedastic varianceProc of the Russian Geographical Soc1641624Google Scholar
  13. Peterson, T, Easterling, D 1994Creation of homogeneous composite climatological reference seriesInt J Climatol14671679CrossRefGoogle Scholar
  14. Seidel, DJ, Lanzante, JR 2004An assessment of three alternatives to linear trends for characterizing global atmospheric temperature changesJ Geophys Res109D14108CrossRefGoogle Scholar
  15. Sen, PK 1968Estimates of the regression coefficient based on Kendall’s tauAmer Stat Assoc J6313791389CrossRefGoogle Scholar
  16. Sneyers R (1990) On the statistical analysis of series of observations. WMO Technical note no. 143, Geneve, 192 ppGoogle Scholar
  17. Tomé, AR, Miranda, PMA 2004Piecewise linear fitting and trend changing points of climate parametersGeophys Res Lett31L02207CrossRefGoogle Scholar
  18. Yue, S, Pilon, P, Phinney, B, Cavadias, G 2002The influence of autocorrelation on the ability to detect trend in hydrological seriesHydrol Processes1618071829CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • A. Toreti
    • 1
  • F. Desiato
    • 1
  1. 1.Agenzia per la Protezione dell’Ambiente e per i Servizi Tecnici (APAT)RomeItaly

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