Analysis of long term trends of rainfall and temperature of Andit tid watershed, central highland of Ethiopia

Ayele DESALEGN; Tilahun GETACHEW; Getacher KASSA

doi:10.38142/ijesss.v2i3.93

Authors

Ayele DESALEGN Woldemariam
Tilahun GETACHEW
Getacher KASSA

DOI:

https://doi.org/10.38142/ijesss.v2i3.93

Keywords:

Climate change, Andiit tid, Mann–Kendall, Hamed, Rao

Abstract

The impacts of climate change and climate variability on human life led the scientific community to monitor the behavior of weather and climate variables. As a responsible body in the present study, trends and variations in climatic variables (i.e. rainfall, air temperature and soil temperature) were analyzed on monthly, seasonal (Belg, summer, spring and winter) and annual time scales for Andit tid watershed, central highland of Ethiopia. This was done using non-parametric statistical techniques, i.e. the Mann–Kendall (MK), over a period of 24 years. To detect the inhomogeneity of the data, autocorrelation has been taken into account using the Hamed and Rao method. The trend analysis revealed that monthly, seasonal and annual rainfall did show statistically insignificant decreasing trend at (P<0.05) level of significant. Annually, noticeable trend increase was found in maximum air temperature and noticeable decrease in minimum air temperature from the non-parametric statistical tests at a (P<0.05) level of significance. With this circumstance, the mean temperature showed insignificant increasing trend at (P<0.05). This type of analysis of several climatic variables at watershed level is helpful for the planning and management of water resources and the development of adaptation strategies in adverse climatic conditions.

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References

Arragaw, A., Woldeamlak, B. (2017). Local spatiotemporal variability and trends in rainfall and temperature in the central highlands of Ethiopia. Geogr. Ann. Phys. Geogr. https://doi.org/10.1080/04353676.2017.1289460.

Asfaw, A., Simane, B., Hassen, A., & Bantider, A. (2018). Variability and time series trend analysis of rainfall and temperature in north-central Ethiopia: A case study in Woleka sub-basin. Weather and Climate Extremes, 19(June 2017), 29–41. https://doi.org/10.1016/j.wace.2017.12.002

Bayazit M, O. no¨z B. (2008). To whiten or not to whiten in trend analysis? Hydrol Sci J, 52(4), 611–624.

Beg, N., Morlot, J. C., Davidson, O., Afrane-Okesse, Y., Tyani, L., Denton, F., Sokona, Y., Thomas, J. P., La Rovere, E. L., Parikh, J. K., Parikh, K., & Rahman, A. A. (2002). Linkages between climate change and sustainable development. Climate Policy, 2(2–3), 129–144. https://doi.org/10.3763/cpol.2002.0216

Birsan, M., Molnar, P., Burlando, P., Pfaundler, M. (2005). Streamflow trends in Switzerland. Journal of Hydrology, 314, 312–329.

Camberlin, P., & Philippon, N. (2002). The East African March-May rainy season: Associated atmospheric dynamics and predictability over the 1968-97 period. Journal of Climate, 15(9), 1002–1019. https://doi.org/10.1175/1520-0442(2002)015<1002:TEAMMR>2.0.CO;2

Daniel, M., Woldeamlak, B., Lal, R. (2014). Recent spatiotemporal temperature and rainfall variability and trends over the upper Blue Nile river basin, Ethiopia. Int. J. Climatol., 34(2278–2292).

De Luis, M., González-Hidalgo, J. C., & Longares, L. A. (2010). Is rainfall erosivity increasing in the Mediterranean iberian peninsula? Land Degradation and Development, 21(2). https://doi.org/10.1002/ldr.918

Desalegn, A., Tezera, A., & Tesfay, F. (2018). Developing GIS-Based Soil Erosion Map Using RUSLE of Andit Tid Watershed, Central Highlands of Ethiopia. Journal of Scientific Research and Reports, 19(1). https://doi.org/10.9734/jsrr/2018/40841

Eriksson, M., Jianchu, X., Shrestha, A. B., Vaidya, R. A., Nepal, S., & Sandström, K. (2009). The Changing Himalayas Impact of climate change on water resources and livelihoods in the greater Himalaya. May 2014.

Hamed KH, R. R. A. (1998). A modified Mann–Kendall trend test for autocorrelated data. Hydrol, 204(1–4), 182–196.

Hare, W. (2003). Assessment of Knowledge on Impacts of Climate Change, Contribution to the Specification of Art, 2 of the UNFCCC. WBGU.

Kendall, M. G. (1975). Rank Correlation Methods, 4th ed. Charles Griffin, London.

Mann, H. B. (1945). Non-parametric test against trend. Econometrica, 13, 245–259.

Negash, W., Goel, N.K., Jain, M. . (2013). Temporal and spatial variability of annual and seasonal rainfall over Ethiopia. Hydrol. Sci. J, 58(2), 354–373. https://doi.org/ 10.1080/02626667.2012.754543

NMA. (2007). Climate Change National Adaptation Programs of Action (NAPA) of Ethiopia, Addis Ababa, Ethiopia.

Oliver, J. E. (1980). Monthly precipitation distribution: A comparative index. Professional Geographer, 32(3). https://doi.org/10.1111/j.0033-0124.1980.00300.x

Orlove, B., E. Wiegandt, and B. L. (2008). The place of glaciers in cultural and natural landscapes: Environment, history, and culture as influences on perceptions of glacier dynamics. In Darkening peaks: Mountain glacier retreat in social and biological contexts. Berkeley: University of California Press, 3–19.

Sen, P. K. (1968). Estimates of the regression coefficient based on Kendall’s tau. J. Am. Stat. Assoc., 63, 1379–1389.

Tena Alamirew, Daniel Berhanu, Hans Hurni, and G. Z. (2018). ‘Longterm agro-climatic and hydro-sediment observatory report: The case of Maybar micro-watershed, Awash River Basin, North-eastern Ethiopia’. In WLRC Research Report II.

Tesfahunegn, G.B.; Mekonen, K.; Tekle, A. (2016). Farmers’ perception on causes, indicators and determinants of climate change in northern Ethiopia: Implication for developing adaptation strategies. Appl. Geogr., 73, 1–12.

Theil, H. (1950). A rank-invariant method of linear and polynomial analysis, part 3. Nederlandse Akademie van Wettenschappen. Proceedings, 1397–1412.

Wang, X. L., Swail, V. R., & Zwiers, F. W. (2006). Climatology and changes of extratropical cyclone activity: Comparison of ERA-40 with NCEP-NCAR reanalysis for 1958-2001. Journal of Climate, 19(13), 3145–3166. https://doi.org/10.1175/JCLI3781.1

Weldegerima, T. M., Zeleke, T. T., Birhanu, B. S., Zaitchik, B. F., & Fetene, Z. A. (2018). Analysis of Rainfall Trends and Its Relationship with SST Signals in the Lake Tana Basin, Ethiopia. Advances in Meteorology, 2018. https://doi.org/10.1155/2018/5869010

Wen, X.; Wu, X.; Gao, M. (2017). Spatiotemporal variability of temperature and precipitation in Gansu Province (Northwest China) during 1951–2015. Atmos. Res., 197, 132–149.

WorldBank. (2010). The World Bank Annual Report 2010 Year In Review. World Bank Annual Report.

Yue, S., Pilon, P., Phinney, B., Cavadias, G. (2002). The influence of autocorrelation on the ability to detect trend in hydrological series. Hydrol. Proc, 16, 1807–1829.

Yurekli K, Simsek H, Cemek B, K. S. (2007). Simulating climatic variables by using stochastic approach. Build Environ, 42, 3493–3499.