Verification of Climate Change Using Rainfall and Temperature Data as Indicators in the Arid Zone of the Sudan 1981 to 2010

• Authors: Orabi Ahmed M. Elbasher , Abdalla Khyar Abdalla , Ahmed Eltayb Abdalla , Hisham Mousa Mohammed
• Languages of publication: EN

Abstracts

EN

Climate change is one of the most serious environmental and socio-economic problems of our time especially in arid areas. Sudan with the new boarders, most of its land classified as arid and semiarid regions, therefore it is very important to investigate the climate change in these areas. This research aimed to investigate the climate change reality in the arid zone in Sudan using rainfall and temperature data only. Five focal points (Kassala, Wadmedni, Eldouim, Elobied, Elfasher) were selected to represent the whole zone. The climate data of monthly and annual rainfall, minimum and maximum air temperature were obtained from Sudan Meteorological Authority (SMA) during the period from 1980 to 2010. Other climatic factors were calculated and estimated from temperature and rainfall data, such as: Potential Evapotranspiration, Cumulative Rainfall Departure, Effective Rainfall, rainfall coefficient of variance, Aridity Index and Standardized Precipitation Index. The relationship between rainfall and temperature were obtained. The period of this study (1981 – 2010), was divided into three decades and analyzed the different between each sub-period on rainfall and temperature using Duncan Multiple Range (DMR) at P ≥ 0.05. The trend of annual mean air temperature had been increased with statistically significant evidences in Kassala, Wadmedni, Eldouim and Elfasher stations; where annual rainfall trend had been increased with statistically significant evidences in Elobied station. Regarding other climatic factors: Potential Evapotranspiration trend showed significant increase in Kassala, Wadmedni and Elfasher stations; Cumulative Rainfall Departure trend showed significant increase in Wadmedni, Elobied and Elfasher stations; where Effective Rainfall, rainfall coefficient of variance, Aridity Index and Standardized Precipitation Index trends showed significant increase in Elobied station only. There were negative significant correlation between rainfall and temperature in Kassala and Elobied stations. There were no significant different between the three sub-period in annual rainfall in all stations except in Elobied station, where in mean air temperature showed significant different between the three sub-period in Kassala, Eldouim and Elfasher.

Keywords

EN

Climate Change; Rainfall; Temperature and Arid Zone

Discipline

• CLIMATOLOGY_&_WATER_MANAGEMENT: CLIMATOLOGY & WATER_MANAGEMENT

• Publisher: Scientific Publishing House „DARWIN”
• Journal: World News of Natural Sciences
• Year: 2023
• Volume: 47
• Pages: 61-83

Contributors

author

Orabi Ahmed M. Elbasher

• Faculty of Agricultural Sciences, University of Gezira, Wad Medani, Sudan

author

Abdalla Khyar Abdalla

• Institute of Invironmental Studies (IES), University of Khartoum, Khartoum, Sudan

author

Ahmed Eltayb Abdalla

• Faculty of Agricultural Sciences, University of Gezira, Wad Medani, Sudan

author

Hisham Mousa Mohammed

• Faculty of Agricultural Sciences, University of Gezira, Wad Medani, Sudan

References

• [1] Adam, H .S, Land conservation in the Arid Zone: Research Centre for Land and Water, Agric. Research Corporation, Sudan. (In Arabic) (2000).
• [2] Zakieldeeen S. A, Adaptation to climate change a vulnerability assessment for Sudan, International Institute For Environmental and Development (iied) gate keeper 142 (2009).
• [3] SECS and HCENR.. Indicators for environmental hazard map for Sudan. Sudanese environment conservation society (SECS) and higher council for environment and natural resources (HCENR), Khartoum (2005).
• [4] SFNC, Sudan’s First National communication. Higher Council for Environment and Natural Resources (HCENR), Khartoum (2002).
• [5] Hoshmand, A. R. Statistical Methods for Environmental and Agricultural Sciences. CRC. Press, New York. (1997) pp 439.
• [6] Adam, H. S. Agroclimatology crop water requirements and water management, University of Gezira Press 2end edition (2014).
• [7] Bredenkamp, D. B.; Botha L. J.; Van Tonder G. J. and Van Rensburg H. J. (1995). Manual on Quantitative Estimation of Groundwater Recharge and Aquifer Storativity. WRC Report No TT 73/95 (1995).
• [8] Coughlan, M. J, Defining drought: a meteorological viewpoint. Science for Drought. In: Proc. National Drought Forum. Brisbane, Australia. (2003) p 24-27.
• [9] McKee, T. B.; Doesken, N. J. and Kleist, J. The relationship of drought frequency and duration to time scales. In: R.E. Hallgren (ed). 8th Conference on Applied Climatology, American Meteorological Society, Anaheim California. (1993) p 179-186.
• [10] Hayes, M. J.; Svoboda, M. D.; White, D. A. and Vanyarkho, O. V. Monitoring the 1996 drought using the Standardized Precipitation Index. Bulletin of the Ameri- can Meteorological Society. (1999) 80(3): 429–438
• [11] Elhag M. M.. Causes and Impact of Desertification in the Butana Area of Sudan. Thesis submitted in accordance with the requirements for the degree of Doctor of Philosophy in Agrometeorology. Department of Soil, Crop and Climate Sciences. Faculty of Natural and Agricultural Sciences University of the Free State Bloemfontein, South Africa (2006).
• [12] Funk, C., Eilerts, G., Davenport, F., Rowland J. and Michaelsen, J., A. Climate trend analysis of Sudan - August 2010: U.S. Geological Survey Fact Sheet 2010–3074, 4 p (2010).
• [13] H. A. Mohamed. Rainfall in the Sudan: trend and agricultural implication. Sudan J. of Agric. Research. (1998). 1: 45-48.
• [14] ] Bashar, M. K. Study of Potential Evapotranspiration and Consumptive use of Water for Different Crops over Bangladesh. An unpublished B.Sc. Engineering project report, Rajshahi (1987).
• [15] Barnett, J. Climate change, insecurity and injustice. Fairness in Adaptation to Climate Change, W.N. Adger, J. Paavola, S. Huq, and M.J. Mace, Eds., MIT Press, Cambridge Massachusetts, (2006). pp. 115-129.
• [16] Le Houérou, H. N.; Bingham, R. L. and Skerbek, W. Relationship between the variability of primary production and the variability of annual precipitation in world arid lands. J. Arid Environ. (1988) 15: 1-18
• [17] Mohamed, I. F. Assessment of the impacts of climate variability and extreme climatic events in Sudan during 1940-2000, (2005).
• [18] IPCC. (2007). IPCC fourth assessment report: The AR4 synthesis report: Glossary. Retrieved 13 May 2011.
• [19] Elfaki, E.A. Rainfall water model for improved rangeland productivity in Butana, Sudan. Lab Lambert Academic Published G m b H and Co KG, Saarbrucken Germany. (2012).
• [20] N. A Elagib (2013). Meteorological Drought and Crop Yield in Sub-Saharan Sudan. International Journal of Water Resources and Arid Environments 2(3): pp. 164-171

• Document Type: article