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Theoretical and Applied Climatology

, Volume 116, Issue 3–4, pp 435–446 | Cite as

The influence of the East Atlantic Oscillation to climate indices based on the daily minimum temperatures in Serbia

  • S. Knežević
  • I. Tošić
  • M. Unkašević
  • G. Pejanović
Original Paper

Abstract

In this study, the influence of the East Atlantic Oscillation (EAO) on the climate indices based on the daily minimum temperature at eight stations in Serbia was examined. The following climate indices were analyzed: frost days (FD), cold nights (TN10p), warm nights (TN90p), minimum value of daily minimum temperature (TNn), tropical nights (TR), and cold spell duration indice (CSDI). Analysis of correlation between the East Atlantic Index (EAI) and the geopotential at 500 hPa, as well as between the EAI and climate indices was realized for all seasons and months during the period 1950–2009. Two characteristic situations for the extreme positive and negative values of the EAI were analyzed. Seasonal and monthly trend analyses of climate indices were performed. Decreases of FD and TN10p and increases of TN90p and TR were observed. It was found that the negative correlation prevailed between the EAI and TN10p/FD, and positive one between the EAI and TN90p/TR for all seasons and months. The highest correlation was observed between the EAI and TN90p in February.

Keywords

Geopotential Height North Atlantic Oscillation Climate Index Teleconnection Pattern Daily Minimum Temperature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This study was supported by the Serbian Ministry of Science, Education and Technological Development, under grant no. 176013. The authors would like to thank the Hydrometeorological Service of Serbia which provided the data necessary for this study. The authors highly appreciate comments and suggestions of reviewers that led to a considerable improvement of the paper.

References

  1. Barnston AG, Livezey RE (1987) Classification, seasonality and persistence of low-frequency atmospheric circulation patterns. Mon Wea Rev 115:1083–1126CrossRefGoogle Scholar
  2. Bartholy J, Pongrácz R (2007) Regional analysis of extreme temperature and precipitation indices for the Carpathian Basin from 1946 to 2001. Glob Planet Change 57:83–95CrossRefGoogle Scholar
  3. Bednorz E (2004) Snow cover in eastern Europe in relation to temperature, precipitation and circulation. Int J Climatol 24:591–601CrossRefGoogle Scholar
  4. Esbensen SK (1984) A comparison of intermonthly and interannual teleconnections in the 700 mb geopotential height field during the Northern Hemisphere winter. Mon Wea Rev 112:2016–2032CrossRefGoogle Scholar
  5. Feidas H, Makrogiannis T, Bora-Senta E (2004) Trend analysis of air temperature time series in Greece and their relationship with circulation using surface and satellite data: 1955–2001. Theor Appl Climatol 79:185–208CrossRefGoogle Scholar
  6. Frich P, Alexander LV, Della-Marta P, Gleason B, Haylock M, Klein Tank AMG, Peterson T (2002) Observed coherent changes in climatic extremes during the second half of the twentieth century. Climat Res 19:193–212CrossRefGoogle Scholar
  7. Hsu H, Wallace JM (1985) Vertical structure of wintertime teleconnection patterns. J Atmos Sci 42:1693–1710CrossRefGoogle Scholar
  8. Jones PD, Jonsson T, Wheeler D (1997) Extension of the North Atlantic Oscillation using early instrumental pressure observations from Gibraltar and South-West Iceland. J Climatol 17:1433–1450CrossRefGoogle Scholar
  9. Josey SA, Marsh R (2005) Surface freshwater flux variability and recent freshening of the North Atlantic in the eastern subpolar gyre. J Geophys Res 110, C05008. doi: 10.1029/2004JC002521 Google Scholar
  10. Josey SA, Somot S, Tsimplis M (2011) Impacts of atmospheric modes of variability on Mediterranean Sea surface heat exchange. J Geophys Res 116, C02032. doi: 10.1029/2010JC006685 Google Scholar
  11. Kalnay E, Kanamitsu M, Kistler R, Collins W, Deaven D, Gandin L, Iredell M, Saha S, White G, Woollen J, Zhu Y, Chelliah M, Ebisuzaki W, Higgins W, Janowiak J, Mo KC, Ropelewski C, Leetmaa A, Reynolds R, Jenne R (1996) The NCEP/NCAR Reanalysis Project. Bull Amer Meteor Soc 77:437–471CrossRefGoogle Scholar
  12. Klein Tank AMG, Wijngaard JB, Können GP, Böhm R, Demarée G, Gocheva A, Mileta M, Pashiardis S, Hejkrlik L, Kern-Hansen C, Heino R, Bessemoulin P, Müller-Westermeier G, Tzanakou M, Szalai S, Pálsdóttir T, Fitzgerald D, Rubin S, Capaldo M, Maugeri M, Leitass A, Bukantis A, Aberfeld R, van Engelen AFV, Forland E, Mietus M, Coelho F, Mares C, Razuvaev V, Nieplova E, Cegnar T, López JA, Dahlström B, Moberg A, Kirchhofer W, Ceylan A, Pachaliuk O, Alexander LV, Petrovic P (2002) Daily dataset of 20th-century surface air temperature and precipitation series for the European Climate Assessment. Int J Climatol 22:1441–1453CrossRefGoogle Scholar
  13. Kostopoulou E, Jones P (2005) Assessment of climate extremes in the Eastern Mediterranean. Meteorol Atmos Phys 89:69–85CrossRefGoogle Scholar
  14. Moore GWK, Pickart RS, Renfrew IA (2011) Complexities in the climate of the subpolar North Atlantic: a case study from 2007. Quart J Roy Meteor Soc 137:757–767CrossRefGoogle Scholar
  15. Moore GWK, Renfrew IA (2012) Cold European winters: interplay between the NAO and the East Atlantic mode. Atmos Sci Let 13:1–8CrossRefGoogle Scholar
  16. Nesterov ES (2009) East Atlantic oscillation of the atmospheric circulation. Russ Meteorol Hydrol 34:794–800CrossRefGoogle Scholar
  17. Quadrelli R, Pavan V, Molteni F (2001) Wintertime variability of Mediterranean precipitation and its links with large-scale circulation anomalies. Clim Dyn 17:457–466CrossRefGoogle Scholar
  18. Rogers JC (1990) Patterns of low-frequency monthly sea level pressure variability (1899–1986) and associated wave cyclone frequencies. J Climate 3:1364–1379CrossRefGoogle Scholar
  19. Serreze MC, Carse F, Barry RG, Rogers JC (1997) Icelandic low cyclone activity: climatological features, linkages with the NAO, and relationships with recent changes in the Northern Hemisphere circulation. J Climate 10:453–464CrossRefGoogle Scholar
  20. Unkašević M, Tošić I (2009) Changes in the extreme daily winter and summer temperatures at Belgrade. Theor Appl Climatol 89:239–244Google Scholar
  21. Unkašević M, Tošić I (2011) A statistical analysis of the daily precipitation over Serbia: trends and indices. Theor Appl Climatol 106:69–78CrossRefGoogle Scholar
  22. Unkašević M, Tošić I (2013) Trends in temperature indices over Serbia: relationships to large-scale circulation patterns. Int J Climatol. doi: 10.1002/joc.3652 Google Scholar
  23. Wallace JM, Gutzler DS (1981) Teleconnections in the geopotential height field during the Northern Hemisphere winter. Mon Wea Rev 109:784–812CrossRefGoogle Scholar
  24. Wilks DS (2006) Statistical methods in the atmospheric sciences. 2nd ed. Academic Press, Amsterdam, Boston, p 649Google Scholar
  25. WMO (1966) Climatic change. Tech Note No 79 WMO Geneva, 79 ppGoogle Scholar
  26. Zhao H, Higuchi K, Waller J, Auld H, Mote T (2012) The impacts of the PNA and NAO on annual maximum snowpack over southern Canada during 1979–2009. Int J Climatol DOI:. doi: 10.1002/joc.3431 Google Scholar

Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  • S. Knežević
    • 1
  • I. Tošić
    • 1
  • M. Unkašević
    • 1
  • G. Pejanović
    • 2
  1. 1.University of Belgrade-Faculty of Physics, Institute of MeteorologyBelgradeSerbia
  2. 2.South East European Virtual Climate Change CenterRepublic Hydrometeorological Service of SerbiaBelgradeSerbia

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