Air temperature trends related to changes in atmospheric circulation in the wider area of Greece

Citation:

Nastos, P.T., Philandras, C.M., Founda, D. & Zerefos, C.S. Air temperature trends related to changes in atmospheric circulation in the wider area of Greece. International Journal of Remote Sensing 32, 737 - 750 (2011). Copy at http://www.tinyurl.com/zzmdtt6

Abstract:

Surface air temperature trends in the wider region of Greece during the period 1951-2007, related to atmospheric circulation, are examined in this work. A network of 31 meteorological stations in the Hellenic area and the Asia Minor coasts and National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis datasets were used for this purpose. The NCEP/NCAR reanalysis datasets were created by assimilating climate observations from different sources including ships, satellites, ground stations, radiosonde observations and radar. The general purpose of conducting the reanalyses was to produce multiyear global state-of-the-art gridded representations of atmospheric states, generated by a constant model and a constant data assimilation system. The findings of the analysis show that the mean annual surface air temperature in the wider region of Greece exhibits a pronounced cooling trend from the beginning of the 1950s up to the mid-1970s. It then remained at low levels until the beginning of the 1990s, and then increased up to 2000, when a turning-point is clear although the temperature remained at high levels. The well-known atmospheric circulation indices of the wider region of Europe, namely the North Atlantic Oscillation Index (NAOI), the Mediterranean Oscillation Index (MOI) and the North Sea Caspian Pattern Index (NCPI), were used to investigate the relationship between surface air temperature and atmospheric circulation in this region of the Eastern Mediterranean. The surface air temperature is not correlated to the NAOI, while it is statistically significantly (95% confidence level (CL)) correlated to the MOI, but only during wintertime. On the contrary, good correlations, which are statistically significant (95% CL), appear between the NCPI and the surface air temperature during all seasons, but particularly in winter. © 2011 Taylor & Francis.

Notes:

Cited By :12Export Date: 2 November 2015CODEN: IJSEDCorrespondence Address: Nastos, P. T.; Laboratory of Climatology and Atmospheric Environment, Faculty of Geology and Geoenvironment, University of AthensGreece; email: nastos@geol.uoa.grReferences: Alexandersson, H., A homogeneity test applied to precipitation data (1986) Journal of Climatology, 6, pp. 661-675;Bartzokas, A., Metaxas, D.A., Climatic fluctuation of temperature and air circulation in the Mediterranean environment and quality of life. Climate and global change (1991) Proceedings of the European School of Climatology and Natural Hazards Course, pp. 279-297. , In, Arles/Rhone, France; Conte, M., Giuffrida, S., Tedesco, S., The Mediterranean oscillation: Impact on precipitation and hydrology in Italy (1989) Proceedings of the Conference on Climate and Water, 1, pp. 121-137. , In, (Helsinki: Academy of Finland); Corte-Real, J., Zhang, X., Wang, X., Large-scale circulation regimes and surface climatic anomalies over the Mediterranean (1995) International Journal of Climatology, 15, pp. 1135-1150; Cracknell, A.P., Varotsos, C.A., The IPCC Fourth Assessment Report and the fiftieth anniversary of Sputnik (2007) Environmental Science and Pollution Research, 14, pp. 384-387; Dunkeloh, A., Jacobeit, J., Circulation dynamics of Mediterranean precipitation variability 1948-1998 (2003) International Journal of Climatology, 23, pp. 1843-1866; Feidas, H., Makrogiannis, T., Bora-Senta, E., Trend analysis of air temperature time series in Greece and their relationship with circulation using surface and satellite data: 1955-2001 (2004) Theoretical and Applied Climatology, 79, pp. 185-208; Flocas, H.A., Tolika, K., Anagnostopoulou, C., Patrikas, I., Maheras, P., Vafiadis, M., Evaluation of maximum and minimum temperature of NCEPNCAR reanalysis data over Greece (2005) Theoretical and Applied Climatology, 80, pp. 49-65; Founda, D., Giannakopoulos, C., The exceptionally hot summer of 2007 in Athens, Greece: A typical summer in the future climate? (2009) Global and Planetary Change, 67, pp. 227-236; Hurrell, J.W., Decadal trends in the North Atlantic Oscillation: Regional temperatures and precipitation (1995) Science, 269, pp. 676-679; Summary for policymakers (2007) Climate Change 2007: The Physical Science Basis, , IPCC, In, S. Solomon, D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor and H.L. Miller (Eds). Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (Cambridge: Cambridge University Press); Kalnay, E., Kanamitsu, M., Kistler, R., Collins, W., Deaven, D., Gandin, L., Iredell, M., Joseph, D., The NCEP/NCAR 40-year Reanalysis Project (1996) Bulletin of the American Meteorological Society, 77, pp. 437-471; Karl, T.R., Knight, R.W., Christy, J.R., Global and hemispheric temperature trends: Uncertainties related to inadequate spatial sampling (1994) Journal of Climate, 7, pp. 1144-1163; Kistler, R., Kalnay, E., Collins, W., Saha, S., White, G., Woollen, J., Chelliah, M., Fiorino, M., The NCEP-NCAR 50-year reanalysis: Monthly means CD-ROM and documentation (2001) Bulletin of the American Meteorological Society, 82, pp. 247-267; Kutiel, H., Benaroch, Y., North Sea-Caspian Pattern (NCP)-an upper level atmospheric teleconnection affecting the eastern Mediterranean: Identification and definition (2002) Theoretical and Applied Climatology, 71, pp. 17-28; Kutiel, H., Maheras, P., Turkes, M., Paz, S., North Sea-Caspian Pattern (NCP)-an upper level atmospheric teleconnection affecting the eastern Mediterranean: Implications on the regional climate (2002) Theoretical and Applied Climatology, 72, pp. 173-192; Lionello, P., Planton, S., Rodo, X., Preface: Trends and climate change in the Mediterranean region (2008) Global and Planetary Change, 63, pp. 87-89; Lolis, C.J., Bartzokas, A., Metaxas, D.A., Spatial covariability of the climatic parameters in the Greek area (1999) International Journal of Climatology, 19, pp. 185-196; Luterbacher, J., Dietrich, D., Xoplaki, E., Grosjean, M., Wanner, H., European seasonal and annual temperature variability, trends, and extremes since 1500 (2004) Science, 303, pp. 1499-1503; Maheras, P., Kutiel, H., Spatial and temporal variations in the temperature regime in the Mediterranean and their relationship with circulation during the last century (1999) International Journal of Climatology, 19, pp. 745-764; Maheras, P., Xoplaki, E., Davies, T., Martin-Vide, J., Bariendos, M., Elkoforado, M.J., Warm and cold monthly anomalies across the Mediterranean basin and their relationship with circulation: 1860-1990 (1999) International Journal of Climatology, 19, pp. 1697-1715; Metaxas, D.A., Bartzokas, A., Vitsas, A., Temperature fluctuations in the Mediterranean area during the last 120 years (1991) International Journal of Climatology, 11, pp. 897-908; Mitchell, J.M., Dzerdzeevskü, B., Flohn, H., Hofmeyr, W.L., Lamb, H.H., Rao, K.N., Wallén, C.C., (1966) Climatic Change, , WMO Technical Note 79, WMO No. 195, TP-100 (Geneva: World Meteorological Organization); Nastos, P.T., Matzarakis, A., Variability of tropical days over Greece within the second half of the twentieth century (2008) Theoretical and Applied Climatology, 93, pp. 75-89; Palutikof, J.P., Conte, M., Casimiro Mendes, J., Goodess, C.M., Espirito Santo, F., Climate and climate change (1996) Mediterranean Desertification and Land Use, pp. 43-86. , In, C.J. Brandt and J.B. Thornes (Eds), (London: John Wiley and Sons); Philandras, C.M., Nastos, P.T., Repapis, C.C., Air temperature variability and trends over Greece (2008) Global NEST Journal, 10, pp. 273-285; Piervitali, E., Colasino, M., Conte, M., Signals of climatic change in the Central-Western Mediterranean basin (1997) Theoretical and Applied Climatology, 58, pp. 211-219; Proedrou, M., Theoharatos, G., Cartalis, C., Variations and trends in annual and seasonal air temperature in Greece determined from ground and satellite measurements (1997) Theoretical and Applied Climatology, 57, pp. 65-78; Repapis, C.C., Philandras, C.M., A note on the air temperature trends of the last 100 years, as evidenced in the Eastern Mediterranean time series (1988) Theoretical and Applied Climatology, 39, pp. 93-107; Saaroni, H., Ziv, B., Edelson, J., Alpert, P., Long term variations in summer temperature over the eastern Mediterranean (2003) Geophysics Research Letters, 30, p. 1946. , doi:101029/2003GL017742; Sahsamanoglou, H.S., Makrogiannis, T.J., Temperature trends over the Mediterranean region, 1950-1988 (1992) Theoretical and Applied Climatology, 45, pp. 183-192; Santer, B.D., Wehner, M.F., Wingley, T.M.L., Sausen, R., Meehl, G.A., Taylor, K.E., Ammann, C., Brüggemann, W., Response to comment on 'Contributions of anthropogenic and natural forcing to recent tropopause height changes' (2004) Science, 303, pp. 1771c; Trenberth, K.E., Christy, J.R., Hurrell, J.W., Monitoring global monthly mean surface temperatures (1992) Journal of Climate, 5, pp. 1405-1423; Tzanis, C., Varotsos, C.A., Tropospheric aerosol forcing of climate: A case study for the greater area of Greece (2008) International Journal of Remote Sensing, 29, pp. 2507-2517; Xoplaki, E., Luterbacher, J., Burkard, R., Patrikas, I., Maheras, P., Connection between the large-scale 500 hPa geopotential height fields and precipitation over Greece during wintertime (2000) Climate Research, 14, pp. 129-146

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