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Theoretical and Applied Climatology

, Volume 126, Issue 3–4, pp 643–657 | Cite as

Spatiotemporal analysis of droughts using self-calibrating Palmer’s Drought Severity Index in the central region of South Africa

  • Desalegn C. Edossa
  • Yali E. Woyessa
  • Worku A. Welderufael
Original Paper

Abstract

The loss of life and property from drought events has forced society to focus on the development of reliable early warning systems which may enable farmers and other stakeholders to correctly and timely adapt to the expected impacts of climatic hazard. However, a scientific approach to a reliable early warning system for a region requires, among others, characterisation of drought events in the region in terms of duration, magnitude, intensity and frequency using standard drought indices. Therefore, the objective of this study was to identify and characterise drought events in the Modder River basin, central region of South Africa, using a self-calibrated Palmer’s Drought Severity Index (sc-PDSI). Attempts were also made to establish a relationship between meteorological and hydrological drought events in the region. During the period of analysis, the total number of drought episodes identified in the study area ranged between eight and sixteen. It was found that the most severe drought episodes occurred during the period 1992–1995 followed by the period 1982–1987. Results of analysis of seasonal drought events in one of the quaternary catchments (C52A) revealed that peak drought events during the three summer months (November, December and January) occurred in the area in 1993. However, in terms of event magnitude and intensity, the worst drought events were recorded during the period December 1982–July 1987, followed by the event that ensued during December 1989–September 1995. Results of analysis of decadal variation of drought events showed that the number of extreme and moderate drought events recorded in the catchment showed statistically significant increasing trends during the five decades at 5 % significance level. Moreover, spectral analysis of sc-PDSI time series in the region identified periodicities in the time series ranging from 6 years (C52E) to 16 years (C52K). In terms of the spatial extent of extreme drought events, the maximum areal coverage (91 %) was recorded in November 1998, followed by December 1998 and December–January 1999 (43 %). Analysis of the relative frequency of droughts of varying categories revealed that extreme drought events were most prevalent in the C52E (2.72 %) quaternary catchment, followed by C52C (2.21 %). The study also found an average lag time of 10 months between the onsets of meteorological and hydrological drought events in the region.

Keywords

Standardise Precipitation Index Drought Event Drought Index Meteorological Drought Hydrological Drought 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors would like to acknowledge the financial support received from the Water Research Commission of South Africa.

References

  1. Alley WM (1984) Palmer Drought Severity Index: limitations and assumptions. J Clim Appl Meteorol 23:1100–1109CrossRefGoogle Scholar
  2. Backeberg GR, Viljoen M (2003) Drought management in South Africa. Paper presented at a workshop of the ICID Working Group on Irrigation under Drought and Water Scarcity, Tehran, I.R. of Iran, 13–14 July 2003Google Scholar
  3. Bonaccorso B, Bordi I, Cancelliere A, Rossi G, Sutera A (2003) Spatial variability of drought: an analysis of the SPI in Sicily. Water Resour Manag 17:273–296CrossRefGoogle Scholar
  4. Burke EJ, Brown SJ (2008) Evaluating uncertainties in the projection of future drought. J Hydrometeorol 9:292–299CrossRefGoogle Scholar
  5. Burke EJ, Brown SJ, Christidis N (2006) Modelling the recent evolution of global drought and projections for the twenty-first century with the Hadley centre climate model. J Hydrometeorol 7:1113–1125. doi: 10.1175/JHM544.1 CrossRefGoogle Scholar
  6. Cannarozzo M, Noto LV, Viola F (2006) Spatial distribution of rainfall trends in Sicily (1921–2000). Phys Chem Earth 31:1201–1211CrossRefGoogle Scholar
  7. Ceglar A, Črepinšek Z and Kajfež-Bogataj L (2008) Analysis of meteorological drought in Slovenia with two drought indices. Proceedings of BALWOIS 2008, 27–31 May, 2008, Ohrid, Republic of Macedonia 2008Google Scholar
  8. Dai A (2011) Characteristics and trends in various forms of the Palmer Drought Severity Index during 1900–2008. J Geophys Res 116Google Scholar
  9. Dai A, Trenberth KE, Karl TR (1998) Global variations in droughts and wet spells: 1900–1995. Geophys. Res Lett 25:3367–3370CrossRefGoogle Scholar
  10. Dai A, Trenberth KE, Qian TT (2004) A global dataset of Palmer Drought Severity Index for 1870–2002: relationship with soil moisture and effects of surface warming. J Hydrometeorol 5:1117–1130CrossRefGoogle Scholar
  11. Du Pisani LG, Fouch HJ, Venter JC (1998) Assessing rangeland drought in South Africa. Agri Sys 57(3):367–380CrossRefGoogle Scholar
  12. Dube LT, Jury MR (2002) Structure and precursors of the 1992/93 drought in KwaZulu-Natal, South Africa, from NCEP reanalysis data. Water SA 29(2):201–208Google Scholar
  13. Durand W (2010) Drought adaptation measures and risk tolerance of commercial, small-scale and subsistence maize farmers in the Free State and North-West Provinces of South Africa. Available from http://www.docstoc.com/docs/93179035/Drought-adaptation-measures-and-risk-tolerance-of-commercial. Accessed 18 June 2012
  14. Edossa DC, Babel MS, Gupta AD (2010) Drought analysis in the Awash River basin, Ethiopia. Water Resour Manag 24:1441–1460CrossRefGoogle Scholar
  15. Heim Jr RR (2000) Drought indices: a review. In: Wilhite DA (ed) Drought: a global assessment. Routledge, London, pp. 159–167Google Scholar
  16. Heim RR (2002) A review of twentieth-century drought indices used in the United States. Bull Am Meteorol Soc 83:1149–1165CrossRefGoogle Scholar
  17. IPCC (2013) Summary for policy makers. In: Stocker TF, Qin D, Plattner G-K, Tignor M, Allen SK, Boschung J, Nauels A, Xia Y, Bex V, Midgley BM (eds) Climate change 2013: the physical science basis. Cambridge University Press, Cambridge, UKGoogle Scholar
  18. Jury MR, Levey K (1993) The Eastern Cape drought. Water SA 19(2):133–137Google Scholar
  19. Keyantash J, Dracup JA (2002) The quantification of drought: an evaluation of drought indices. Bull Am Meteorol Soc 83:1167–1180CrossRefGoogle Scholar
  20. Kim TW, Valdes JB, Aparicio J (2002) Frequency and spatial characteristics of droughts in the Conchos river basin, Mexico. Water Int 27(3):420–430CrossRefGoogle Scholar
  21. Lloyd-Hughes B, Saunders MA (2002) A drought climatology for Europe. Int J Climatol 22:1571–1592CrossRefGoogle Scholar
  22. Lynch SD (2004) The development of a raster database of annual, monthly and daily rainfall for southern Africa. Report to the Water Research Commission. Pretoria, Water Research CommissionGoogle Scholar
  23. McKee TB, Doesken NJ and Kliest J (1993) The relationship of drought frequency and duration to time scales. In: Proceedings of the 8th conference on applied climatology, 17–22 January, Anaheim, CA. American Meteorological Society, Boston, MA. 179–184Google Scholar
  24. Mika J, Horva’th Sz Makra L, Dunkel Z (2005) The Palmer Drought Severity Index (PDSI) as an indicator of soil moisture. Phys. and Chem. Ear 30:223–230CrossRefGoogle Scholar
  25. Palmer WC (1965) Meteorological droughts. U.S. Department of Commerce Weather Bureau Research Paper 45:58Google Scholar
  26. Raziei T, Bordi I, Pereira LS (2008) A precipitation-based regionalization for western Iran and regional drought variability. Hydrol Earth Syst Sci 12:1309–1321CrossRefGoogle Scholar
  27. Raziei T, Saghafian B, Paulo AA, Pereira LS, Bordi I (2009) Spatial patterns and temporal variability of drought in western Iran. Water Res. Manage 29:439–455CrossRefGoogle Scholar
  28. Rouault M, Richard Y (2003) Intensity and spatial extension of drought in South Africa at different time scales. Water SA 29(4):489–500Google Scholar
  29. Rouault M, Richard Y (2005) Intensity and spatial extent of droughts in southern Africa. Geophys Res Lett 32:15CrossRefGoogle Scholar
  30. Schulze RE (2003) Development of a database of gridded daily temperatures for Southern Africa. University of Natal, Pietermaritzburg, School of Bioresources Engineering and Environmental Hydrology. ACRUcons Report, 41:82Google Scholar
  31. Schulze RE, Maharaj M, Warbuton ML, Gers CJ, Horan MJC, Kunz RP, Clark DJ (2008) South African Atlas of Climatology and Agrohydrology. Water Research CommissionGoogle Scholar
  32. Seymour C and Desmet P (2009) Coping with drought—do science and policy agree? SA J Sc 105Google Scholar
  33. Sharma S (1996) Applied multivariate techniques. John Wiley & Sons 512Google Scholar
  34. Thompson MW (1999) South African national land cover database project, data users’ manual: final report (phases 1, 2, and 3). Client report ENV/P/C 98136. Pretoria: CSIRGoogle Scholar
  35. Thornthwaite CW (1948) An approach toward a rational classification of climate. Geogr Rev 38:55–94CrossRefGoogle Scholar
  36. Van der Schrier G, Efthymiadis D, Briffa KR, Jones PD (2007) European Alpine moisture variability for 1800–2003. Int J Climatol 27:415–427CrossRefGoogle Scholar
  37. Van der Schrier G, Briffa KR, Jones PD, Osborn TJ (2006a) Summer moisture variability across Europe. J Clim 19:2818–2834CrossRefGoogle Scholar
  38. Van der Schrier G, Briffa KR, Osborn TJ, Cook ER (2006b) Summer moisture availability across north America. J Geophys Res 111Google Scholar
  39. Vasiliades L and Loukas A (2009) Hydrological response to meteorological drought using the Palmer drought indices in Thessaly, Greece. Proceedings of conference on Water Resources Management: New Approaches and Technologies, 14–16 June 2007, Chania, GreeceGoogle Scholar
  40. Vasiliades L, Loukas A and Liberis N (2011) A water-balance derived drought index for pinios river basin, Greece. Water Resour Manag 25:1087–1101Google Scholar
  41. Vetter S (2009) Drought, change and resilience in South Africa’s arid and semi-arid rangelands. SA J Sc 105Google Scholar
  42. Vicente-Serrano SM, Begueria S, Lopez-Moreno JI (2010) A multi-scalar drought index sensitive to global warming: the standardized precipitation evapotranspiration index. J Clim 23:1696–1718CrossRefGoogle Scholar
  43. Vicente-Serrano SM (2014) The climate data guide: Standardized Precipitation Evapotranspiration Index (SPEI). Available from https://climatedataguide.ucar.edu/climate-data/standardized-precipitation-evapotranspiration-index-spei. Accessed 19 Nov 2014
  44. Wells N, Goddard S, Hayes MJ (2004) A self-calibrating Palmer Drought Severity Index. J Clim 17:2335–2351CrossRefGoogle Scholar
  45. Woyessa YE, Welderufael WA, Kinyua JDM, Kundhlande G and Tsumake OP (2011) Land-water linkages: agent-based modelling of land use and its impact on water resources. Water Research Commission Report No 1753/1/10Google Scholar

Copyright information

© Springer-Verlag Wien 2015

Authors and Affiliations

  1. 1.Department of Civil EngineeringCentral University of Technology, Free State (CUT)BloemfonteinSouth Africa

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