Analysis of Monthly, Seasonal and Annual Air Temperature Variability and Trends in Taiz City - Republic of Yemen

DOI: 10.4236/jep.2010.14046   PDF   HTML     5,496 Downloads   11,648 Views   Citations


Climate change is one of the most important issues of today’s World. Climate scientists have concluded that the earth’s surface air temperature warmed by 0.6 ± 0.2℃ during the 20th century, accompanied by changes in the hydrologic cycle. Of all the climate elements, temperature plays a major role in detecting climate change brought about by urbanization and industrialization. This study focuses on the variability and trends of the mean annual, seasonal and monthly surface air temperature in Taiz city, Republic of Yemen, during the period 1979-2006. The results of the analysis of the whole period reveal a statistically significant increasing trend in practically all the months and seasons. A tendency has also been observed towards warmer years, with significantly warmer summer and spring periods and slightly warmer autumn and winter, an increase of 1.79℃ and 1.18℃ has been observed in the mean summer and mean winter temperature, respectively. Positive trends of about 1.5℃ in the annual mean temperature were found for the whole period. The air temperature time series are analyzed, so that the variability and trends can be described.

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M. Buhairi, "Analysis of Monthly, Seasonal and Annual Air Temperature Variability and Trends in Taiz City - Republic of Yemen," Journal of Environmental Protection, Vol. 1 No. 4, 2010, pp. 401-409. doi: 10.4236/jep.2010.14046.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] V. P. R. Silva, “On Climate Variability in North-East of Brazil,” Journal of Arid Environments, Vol. 58, No. 4, 2004, pp. 575-596.
[2] P. D. Jones, E. B. Horton, C. K. Folland, M. Hulme, D. E. Parker and T. A. Basnett, “The Use of Indices to Identify Changes in Climatic Extremes,” Climatic Change, Vol. 42, No. 1, 1999, pp. 131-149.
[3] D. E. Parker and E. B. Horton, “Global and Regional Climate in 1998,” Weather, Vol. 54, 1999, pp. 173-184.
[4] Inter Governmental Panel on Climte Change (IPCC), “Climate Change 2001: Synthesis Report, Contribution of Working Groups I and III to the Third Assessement of the (IPCC),” Cambridge University Press, Cambridge, 2001.
[5] P. D. Jones and A. Moberg, “Hemispheric and Large- Scale Surface Air Temperature Variations: An Extensive Revision and Update to 2001,” Journal Climate, Vol. 16, 2003, pp. 206-223.
[6] K. Y. Vinnikov and N. C. Grody, “Global Warming Trend of Mean Tropospheric Temperature Observed by Satellites,” Science, Vol. 302, 2003, pp. 269-272.
[7] W. Soon, S. Baliunas, E. S. Posmentier and P. Okeke, “Variations of Solar Coronal Hole Area and Terrestrial Lower Tropospheric Air Temperature from 1979 to Mid-1998: Astronomical Forcings of Change in Earth’S Climate,” New Astron, Vol. 4, No. 8, 2000, pp. 563-579.
[8] T. Landscheidt, “Solar Wind near Earth: Indicator of Variations in Global Temperature,” Proceedings of the 1st Solar and Space Weather Euroconference on the Solar Cycle and Terrestrial Climate, Tenerife, 2000, pp. 497-500.
[9] IPCC, “Climate Change 2001: Impacts, Adaptation and Vulnerability,” In: J. McCarthy, O. Canziani, N. Leary, D. Dokken and K. White, Eds., Contribution of Working Group II to the Third Assessment Report of the (IPCC), World Meteorological Organisation and United Nations Environment Programme, Cambridge University Press, Cambridge, 2001.
[10] P. D. Jones, T. M. L. Wigley and P. B. Wright, “Global Temperature Variations between 1861 and 1984,” Nature, Vol. 322, 1986, pp. 430-434.
[11] P. D. Jones, “Hemispheric Surface Air Temperature Variations: Recent Trends and an Update to 1987,” Journal of Climate Vol. 1, 1988, pp. 654-660.
[12] WMO, “WMO Statement on the Status of the Global Climate in 1996,” WMO, No. 858, World Meteorological Organization, Geneva, 1997.
[13] G. P. Brasseur and E. Roeckner, “Impact of Improved Air quality on the Future Evolution of Climate,” Geophysical Research Letters Vol. 32, No. L23704, 2005, p. 4
[14] N. Scafetta and B. J. West, “Estimated Solar Contribution to the Global Surface Warming Using the ACRIM TSI Satellite Composite,” Geophysical Research Letters, Vol. 32, 2005, p. L18713.
[15] R. A. Pielke, “Land Use and Climate Change,” Science, Vol. 310, No. 5754, 2005, pp. 1625-1626.
[16] I. P. Savelieva, L. N. Semiletov, Vasilevskaya and S. P. Pugach, “A Climate Shift in Seasonal Values of Meteorological and Hydro Logical Parameters for Northeastern Asia,” Progress in Oceanography, Vol. 47, No. 2, 2000, pp. 279-297.
[17] Climate Change in Russia, IGCE Rusian Agency on Hydrometeorology and Environmental Monitoring Publishing, Moscow, 2003.
[18] G. Gruza and E. Rankova, “Detection of Changes in Climate State, Climate Variability and Climate Extremity,” Institute of Global Climate and Ecology, Moscow, No. 4, 2004, pp. 90-93.
[19] M. Lal, H. Harasawa, D. Murdiyarso, W. N. Adger, S. Adhikary, M. Ando, Y. Anokhin, R. V. Cruz, et al., “Asia Climate Change (2001): Impacts, Adaptation, and Vulnerability Contribution of Working Group II to the Third Assessment Report of the IPCC, J. J. Mc- and K. S. White, Eds., Cambridge University Press, Cambridge, 2001(a).
[20] R. C. Balling Jr. and S. W. Brazel, “The Impact of Rapid Urbanization on Pan Evaporation in Phoenix, Arizona,” Journal of Climatology, Vol. 7, No. 6, 1987, pp. 593-597.
[21] A. C. Comrie, and B. Broyles, “Variability and Spatial Modeling of Fine-Scale Precipitation Data for the Sonoran Desert of South-West Arizona,” Journal of Arid Environments, Vol. 50, No. 4, 2002, pp. 573-592.
[22] C. K. Folland, C. Miller, D. Bader, M. Crowe, P. Jones, N Plummer, M. Richman, D. E. Parker, J. Rogers and P. Scholefield, “Work Shop in Indices and Indicators for Climate Extremes,” Geophysical Research Letters, Vol. 32, 1997, p. L18713.
[23] D. R. Easterling, H. F. Diaz, A. V. Douglas, W. D. Hogg, K. E. Kunkel, J. C. Rogers and J. F. Wilkinson, “Long- Term Observations for Monitoring Extremes in the Americas,” Climatic Change, Vol. 42, 1999, pp. 285-308.
[24] T. R. Karl and D. R. Easterling, “Climate Extremes: Selected review and Future Research Directions,” Climatic Change, Vol. 42, No. 1, 1999, pp. 309-325.
[25] A. M. Jose, R. V. Francisco and N. A. Cruz, “A Study on Impact of Climate Variability Change on Water Resources in the Philippines,” Chemosphere, Vol. 33, No. 9, 1996, pp. 1687-1704.
[26] N. W. Arnell, “The Effect of Climate Change on Hydrological Regimes in Europe: A Continental Perspective,” Global Environmental Change, Vol. 9, No. 1, 1999, pp. 5-23.
[27] A. A. Velichkov, N. Catto, A. N. Drenova, V. A. Klimanov and K. V. Kremenetski, “Climate Change in East Europe and Siberia at the Late Glacial-Holocene Transition,” Quaternary International, Vol. 91, No. 1, 2002, pp. 75-99.
[28] E. C. Kipkorir, “Analysis of Rainfall Climate on the Njemps Flats, Baringo District, Kenya,” Journal of Arid Environments, Vol. 50, No. 3, 2002, pp. 445-458.
[29] S. Al-Fahed, O. Al-Hawaj and W. Chakroun, “The Recent Air Temperature Rise in Kuwait,” Renewable Energy, Vol. 12, No. 1, 1997, pp. 83-90.
[30] N. A. Elagib and A. S. Abdu, “Climate Variability and Aridity in Bahrain,” Journal of Arid Environmental, Vol. 36, No. 3, 1997, pp. 405-419.
[31] A. A. Abahussain, A. S. Abdu, W. K. Al-Zubari, N. A. El-Deen and M. Abdul-Raheem, “Desertification in the Arab Region: Analysis of Current Status and Trends,” Journal of Arid Environments, Vol. 51, No. 4, 2002, pp. 521-545.
[32] M. S. Mahmoud and Z. Ahmed, “A Sudden Change in Rainfall Characteristics in Amman, Jordan during the Mid 1950s,” American Journal of Environmental Sciences, Vol. 2, No. 3, 2006, pp. 84-91.
[33] M. S. Mahmoud, “Observed Abrupt Changes in Minimum and Maximum Temperatures in Jordan in the 20th Century,” American Journal of Environmental Sciences, Vol. 2, No. 3, 2006, pp. 114-120.
[34] C. C. Chang, “The Potential Impact of Climate Change on Taiwan’s Agriculture,” Agricultural Economics Vol. 27, No. 3, 2002, pp. 51-64.
[35] P. S. Yu, T. C. Yang and C. K. Wu, “Impact of Climate Change on Water Resources in Southern Taiwan,” Journal of Hydrology, Vol. 260, 2002, pp. 161-175.
[36] S. Cohen, A. Ianetz, and G. Stanhill, “Evaporative Climate Change at Bet Dagan, Israel, 1964-1998,” Agricultural and Forest Meteorology, Vol. 111, No. 2, 2002, pp. 83-91.
[37] A. C. Moonen, L. Ercoli, M. Mariotti and A. Masoni, “Climate Change in Italy Indicated by Agrometeorological Indices over 122 Years,” Agricultural and Forest Meteorology, Vol. 111, No. 1, 2002, pp. 13-27.
[38] H. B. Mann, “Nonparametric Tests against Trend,” Econometrica, Vol. 13, No. 3, 1945, pp. 245-259.
[39] M. G. Kendall, “Rank Correlation Measures,” Charles Griffin, London, 1975.
[40] D. P. Lettenmaier, E. F. Wood and J. R. Wallis, “Hydroclimatological Trends in the Continental United States 1948-1988,” Journal Climate, Vol. 7, 1994, pp. 586-607.
[41] H. B. Burn and M. A. H. Elnur, “Detection of Hydrologic Trends and Variability,” Journal of Hydrology, Vol. 255, 2002, pp. 107-122.
[42] R. M. Hirsch, J. R. Slack and R. A. Smith, “Techniques of Trend Analysis for Monthly Water Quality Data,” Water Resources Research, Vol. 18, No. 1, 1982, pp. 107- 121.

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