The
study aimed at analyzing the trends and variability of temperature extremes over the northeastern highlands in Tanzania, specifically over Arusha and
Kilimanjaro regions. Quality controlled mean monthly, daily maximum and minimum
temperature data for the period 1961 to 2020, obtained from Tanzania Meteorological Authority, were
used in the study. Rclimdex and the National Climate Monitoring Products (NMCP)
software, developed by the World Meteorological Organization (WMO), were
used for computation of the indices at a monthly, seasonal and annual time scale.
The computed indices were also subjected to trend analysis to determine their
direction and magnitude of change. Extraction and assessment of the top five
highest and lowest maximum and minimum temperatures
References
[1]
Field, C.B., Barros, V., Stocker, T.F., Qin, D., Dokken, D.J., Ebi, K.L., Mastrandrea, M.D., Mach, K.J., Plattner, G.-K., Allen, S.K., Tignor, M. and Midgley, P.M. (Eds.) (2012) Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change. Intergovernmental Panel on Climate Change (IPCC), New York.
[2]
Barros, V.R., Field, C.B., Dokken, D.J. and Mastrandrea, M.D. (2014) AR5 Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part B: Regional Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Intergovernmental Panel on Climate Change (IPCC), Cambridge and New York.
[3]
Intergovernmental Panel on Climate Change (IPCC) (2018) IPCC Special Report on the Impacts of Global Warming of 1.5?C. Intergovernmental Panel on Climate Change, Geneva. https://report.ipcc.ch/sr15/pdf/sr15_spm_final.pdf%0A http://www.ipcc.ch/report/sr15/
[4]
Shukla, P.R., Skea, J., Calvo Buendia, E., Masson-Delmotte, V., Pörtner, H.-O., Roberts, D.C., Zhai, P., Slade, R., Connors, S., van Diemen, R., Ferrat, M., Aughey, E., Luz, S., Neogi, S., Pathak, M., Petzold, J., Portugal Pereira, J., Vyas, P., Huntley, E., Kissick, K., Belkacemi, M. and Malley, J. (Eds.) (2019) Climate Change and Land: An IPCC Special Report on Climate Change, Desertification, Land Degradation, Sustainable Land Management, Food Security, and Greenhouse Gas Fluxes in Terrestrial Ecosystems. Intergovernmental Panel on Climate Change, New York. [In Press]
[5]
World Meteorological Organization (WMO) (2019) WMO Satement on the State of the Global Climate in 2018. NO.1233, World Meteorological Organization, Geneva. https://library.wmo.int/doc_num.php?explnum_id=5789
[6]
World Meteorological Organization (WMO) (2020) WMO Statement on the State of the Global Climate in 2019, 40, No. 1248, World Meteorological Organization, Geneva.
[7]
Chang’a, L.B., Kijazi, A.L., Luhunga, P.M., Ng’ongolo, H.K. and Mtongori, H. (2017) Spatial and Temporal Analysis of Rainfall and Temperature Extreme Indices in Tanzania. Atmospheric and Climate Sciences, 7, 525-539. https://doi.org/10.4236/acs.2017.74038
[8]
Handmer, J., Honda, Y., Kundzewicz, Z.W., Arnell, N., Benito, G., Hatfield, J., et al. (2012) Changes in Impacts of Climate Extremes: Human Systems and Ecosystems. In: Field, C.B., Barros, V., Stocker, T.F., Qin, D., Dokken, D.J., Ebi, K.L., Mastrandrea, M.D., et al., Eds., Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation, Cambridge University Press, Cambridge, and New York, 231-290.
[9]
Seneviratne, S.I., Nicholls, N., Easterling, D., Goodess, C.M., Kanae, S., Kossin, J., Luo, Y., et al. (2012) Changes in Impacts of Climate Extremes and Their Impacts on the Natural Physical Environment. In: Field, C.B., Barros, V., Stocker, T.F., Qin, D., Dokken, D.J., Ebi, K.L., Mastrandrea, M.D., et al., Eds., Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation, Cambridge University Press, Cambridge, and New York, 109-230. https://doi.org/10.1017/CBO9781139177245.006
[10]
At?lgan, A., Tanr?verd?, C., Yucel, A., Oz, H. and Deg?rmenc?, H. (2017) Analysis of Long-Term Temperature Data Using Mann-Kendall Trend Test and Linear Regression Methods: The Case of the Southeastern Anatolia Region. Scientific Papers-Se- ries A: Agronomy, 60, 455-462.
[11]
Oguge, N., Omolo, E. and Lumosi, C. (2011) Climate Change and Natural Resource Use in Eastern Africa: Impacts, Adaptation and Mitigation. Proceedings of the 3rd Scientific Conference of the Ecological Society for Eastern Africa, Nairobi, 19-21 May 2010.
[12]
Food and Agriculture Organization of the United Nations (FAO) (2014) Adapting to Climate Change through Land and Water Management in Eastern Africa. Food and Agriculture Organization of the United Nations, World Bank.
[13]
Muhire, I., Ahmed, F., Abutaleb, K. and Kabera, G. (2015) Impacts of Projected Changes and Variability in Climatic Data on Major Food Crops Yields in Rwanda. International Journal of Plant Production, 9, 347-372. https://doi.org/10.22069/ijpp.2015.2221
[14]
National Soil Service (NSS) (2006) Rainfed Agriculture Crop Suitability for Tanzania. National Soil Service, Tanga, Tanzania.
[15]
Lal, P.N., Mitchell, T., Aldunce, P., Auld, H., Mechler, R., Miyan, A., et al. (2012) National Systems for Managing the Risks from Climate Extremes and Disasters. In: Field, C.B., Barros, V., Stocker, T.F., Qin, D., Dokken, D.J., Ebi, K.L., Mastrandrea, M.D., et al., Eds., Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation, Cambridge University Press, Cambridge, and New York, 339-392.
[16]
Sun, X., Ren, G., Xu, W., Li, Q. and Ren, Y. (2017) Global Land-Surface Air Temperature Change Based on the New CMA GLSAT Data Set. Science Bulletin, 62, 236- 238. https://doi.org/10.1016/j.scib.2017.01.017
[17]
World Meteorological Organization (WMO) (2007) Guide to the Global Observing System. No.488, World Meteorological Organization, Geneva.
[18]
Cattani, E., Merino, A., Guijarro, J.A. and Levizzani, V. (2018) East Africa Rainfall Trends and Variability 1983-2015 Using Three Long-Term Satellite Products. Remote Sensing, 10, Article No, 931. https://doi.org/10.3390/rs10060931
[19]
Driouech, F., Stafi, H., Khouakhi, A., Moutia, S., Badi, W., ElRhaz, K., et al. (2021) Recent Observed Country-Wide Climate Trends in Morocco. International Journal of Climatology, 41, E855-E874. https://doi.org/10.1002/joc.6734
[20]
Frich, P., Alexander, L.V., Della-Marta, P., Gleason, B., Haylock, M., Klein Tank, A.M.G. and Peterson, T. (2002) Observed Coherent Changes in Climatic Extremes during the 2nd Half of the 20th Century. Climate Research, 19, 193-212. https://doi.org/10.3354/cr019193
[21]
New, M., Hewitson, B., Stephenson, D.B., Tsiga, A., Kruger, A., Manhique, A., Gomez, B., Coelho, C.A.S., Masisi, D.N., Kululanga, E., Mbambalala, E., Adesina, F., Saleh, H., Kanyanga, J., Adosi, J. and Leb, R.L. (2006) Evidence of Trends in Daily Climate Extremes over Southern and West Africa. Journal of Geophysical Research: Atmospheres, 111, Article ID: D14102. https://doi.org/10.1029/2005JD006289
[22]
Sen, P.K. (1968) Estimates of the Regression Coefficient Based on Kendall’s Tau. Journal of the American Statistical Association, 63, 1379-1389. https://doi.org/10.1080/01621459.1968.10480934
[23]
Zhang, X., Alexander, L.V., Hegerl, G.C., Klein-Tank, A., Peterson, T.C., Trewin, B. and Zwiers, F.W. (2011) Indices for Monitoring Changes in Extremes Based on Daily Temperature and Precipitation Data. WIREs Climate Change, 2, 851-870. https://doi.org/10.1002/wcc.147
[24]
Vincent, L.A., Peterson, T.C., Barros, V.R., Marino, M.B., Rusticucci, M., Carrasco, G., et al. (2005) Observed Trends in Indices of Daily Temperature Extremes in South America 1960-2000. Journal of Climate, 18, 5011-5023. https://doi.org/10.1175/JCLI3589.1
[25]
Zhang, X., Aguilar, E., Sensoy, S., Melkonyan, H., Tagiyeva, U., Ahmed, N., Kutaladze, N., Rahimzadeh, F., Taghipour, A., Hantosh, T.H., Albert, P. and Semawi, M. (2005) Trends in Middle East Climate Extreme Indices from 1950 to 2003. Journal of Geophysical Research: Atmospheres, 110, Article No. D22104. https://doi.org/10.1029/2005JD006181
[26]
Zhang, X., Vincent, L.A., Hogg, W.D. and Niitsoo, A. (2000) Temperature and Precipitation Trends in Canada during the 20th Century. Atmosphere-Ocean, 38, 395- 429. https://doi.org/10.1080/07055900.2000.9649654
Luhunga, P., Mutayoba, E. and Ng’ongolo, H. (2014) Homogeneity of Monthly Mean Air Temperature of the United Republic of Tanzania with HOMER. Atmospheric and Climate Sciences, 4, 70-77. https://doi.org/10.4236/acs.2014.41010
Onyutha, C. and Willems, P. (2015) Spatial and Temporal Variability of Rainfall in Nile Basin. Hydrology and Earth System Sciences, 19, 2227-2246. https://doi.org/10.5194/hess-19-2227-2015
[31]
Boko, M., Niang, I., Nyong, A., Vogel, C., Githeko, A., Medany, M., Osman-Elasha, B., Tabo, R. and Yanda, P. (2007) Africa. In: Parry, M.L., Canziani, O.F., Palutikof, J.P., van der Linden, P.J. and Hanson, C.E., Eds., Climate Change 2007: Impacts, Adaptation and Vulnerability. Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, 433-467.
