Abstract
Spatial and temporal variability in daily maximum and mean average daily temperature, monthly maximum and mean average monthly temperature for nine coastal stations during the period 1956–2009 (54 years), and annual maximum and mean average temperature for coastal and inland stations for the period 1945–2009 (65 years) across Libya are analysed. During the period 1945–2009, significant increases in maximum temperature (0.017 °C/year) and mean average temperature (0.021 °C/year) are identified at most stations. Significantly, warming in annual maximum temperature (0.038 °C/year) and mean average annual temperatures (0.049 °C/year) are observed at almost all study stations during the last 32 years (1978–2009). The results show that Libya has witnessed a significant warming since the middle of the twentieth century, which will have a considerable impact on societies and the ecology of the North Africa region, if increases continue at current rates.
Similar content being viewed by others
References
Aesawy AM, Hasanean HM (1998) Annual and seasonal climatic analysis of surface air temperature variations at six southern Mediterranean stations. Theor Appl Climatol 61:55–68
Ageena I, Macdonald N, Morse AP (2012) Variability of minimum temperature across Libya (1945–2009). Int J Climatol 33:641–653
Alexander LV, Zhang X, Peterson TC, Caesar J, Gleason B, Klein Tank AMG, Haylock MD, Collins B, Trewin F, Rahimzadeh A, Tagipour P, Ambenje K, Revadekar G (2006) Global observed changes in daily climate extremes of temperature and precipitation. J Geophys Res Atmos 111:1–22
Al-Haram F (1995) Topography and geomorphology. In: Geography of Libya (ID) Al-Hadi Abo-Lohmah. Al-Dar Al-Jamahiriya LL-Nashir 101–120
Ben-Mahmoud KR (1993) The Libyan soil; composition, classification, properties, and agricultural potential (in Arabic), National Authority for Scientific Research, Benghazi, Libya, p 47
Brunet M, Jones PD, Sigro J, Saladie O, Aguilar E, Moberg A, Della-Marta PM, Lister A, Walther D, Lopez D (2007) Spatial and temporal temperature variability and change over Spain during 1850–2003. J Geophys Res 112, D12117
Campra P, Garcia M, Canton Y, Orueta AP (2008) Surface temperature cooling trends and negative radiative forcing due to land use change toward greenhouse farming in south eastern Spain. J Geophys Res 113, D18109
Domonkos P, Tar K (2002) Long-term changes in observed temperature and precipitation series 1901–1998 from Hungary and their relations to larger scale changes. Theor Appl Climatol 75:131–147
El Kenawy A, Lopez-Moreno J, Vicente-Serrano S, Mekled M (2009) Temperature trends in Libya over the second half of the 20th century. Theor Appl Climatol 98:1–8
El-Tantawi M (2005) Climate change in Libya and desertification of Jfarah Plain, (PhD Research). Johannes Gutenberg-University, Mainz
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 79:185–208
Hansen J, Sato M, Ruedy R, Lo K, Lea DW, Medina-Elizade M (2006) Global temperature change. Proc Natl Acad Sci U S A 103:14288–14293
Hasanean H (2001) Fluctuations of surface air temperature in the eastern Mediterranean. Theor Appl Climatol 68:75–87
Hasanean H, Abdel Basset H (2006) Variability of summer temperature over Egypt. Int J Climatol 26:1619–1634
IPCC (2007) Observation: surface atmospheric climate change. In: Adler R, Alexander L, Alexanderson H, Allan R, Baldwin M, Beniston M, Bromwich D, Camilloni I, Cassou C, Cayan DR, Chang E, Christy J, Dai A, Deser C, Dotzek N, Fasullo J, Fogt R, Folland C, Forster P, Free M, Frei C, Gleason B, Grieser J, Groisman P, Gulev S, Hurrell J, Ishii M, Josey S, Kållberg P, Kennedy J, Kiladis G, Kripalani R, Kunkel K, Lam CY, Lanzante J, Lawrimore J, Levinson D, Liepert B, Marshall G, Mears C, Mote P, Nakamura H, Nicholls H, Norris J, Rosenlof K, Semazzi FH, Shea D, Shepherd JM, Shepherd T, Sherwood S, Sigmund P, Simmonds I, Simmons A, Thorncroft C, Thorne P, Uppala S, Vose R, Wang B, Warren S, Washington R, Wheeler M, Wielicki B, Wong T, Wuertz D (eds) Climate change 2007—the physical science basis. Contribution of Working Group 1 to the fourth assessment report of the Intergovernmental Panel on Climate Change. Cambridge University Press, New York
Jones PD, New M, Parker DES, Martin S, Rigor IG (1999) Surface air temperature and its changes over the past 150 years. Rev Geophys 37:173–199
Juan J, Antonio P (1996) Temperature variations in Spain since 1901: a preliminary analyses. Int J Climatol 16:808–815
Kutiel H, Maheras P (1998) Variations in the temperature regime across the Mediterranean during the last century and their relationship with circulation indices. Theor Appl Climatol 61:39–53
Mitchell JM, Dzerdzeevskii B, Flohn H, Hofmery WL (1966) Climatic change. WMO Technical Note 79. WMO No. 195. TP-100. World Meteorological Organization (WMO), Geneva, 79
Rebetez M, Reinhard M (2008) Monthly air trends in Switzerland 1901–2000 and 1975–2004. Theor Appl Climatol 91:27–34
Rose S (2007) Decadal rainfall and runoff trends in the southeastern United States. Proceedings of the 2007 Georgia Water Resources Conference, April 27–29, 2007, at the University of Georgia
Salmi T, Maatta A, Anttila P, Ruoho-Airola T, Amnell T (2002) Detecting trends of annual values of atmospheric pollutants by the Mann–Kendall test and Sen's slope estimates—the excel template application Makesens. Helsinki, ISBN 951-697-563-1
Sneyers R (1990) On the statistical analysis of series of observations. Technical Note, No. 143. World Meteorological Organization (WMO), Geneva, 192
Soltani S, Sabohi R, Yaghmaei L (2012) Rainfall and rainy days trend in Iran. Clim Chang 110:187–213
Wibig J, Glowicki B (2002) Trends of minimum and maximum temperature in Poland. Clim Res 20:123–133
Xoplaki E, Gonzalez-Rouco FJ, Gyalistras D, Luterbacher J, Wanner H (2003) Mediterranean summer air temperature variability and its connection to the large-scale atmospheric circulation and SSTs. Clim Dyn 20:723–739
Acknowledgments
This research was funded by the Libyan government as a part of a PhD thesis undertaken at the University of Liverpool. The authors are grateful to the LNMC for providing them with the Libyan meteorological station data. Thanks are also extended to Mrs Sandra Mather and Suzanne Yee, Graphics Unit, School of Environmental Sciences for illustrations. We would like to thank the anonymous reviewers for their insightful and helpful comments.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ageena, I., Macdonald, N. & Morse, A.P. Variability of maximum and mean average temperature across Libya (1945–2009). Theor Appl Climatol 117, 549–563 (2014). https://doi.org/10.1007/s00704-013-1012-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00704-013-1012-z