Climatic Change

, Volume 76, Issue 1–2, pp 73–90

Seasonal Climate Forecasts – Potential Agricultural-Risk Management Tools?

Article

Abstract

The importance of anchoring seasonal climate forecasts to user needs is examined in this paper. Although it is generally accepted that seasonal climate forecasts have potential value, many constraints preclude the optimal use of these forecasts, including the way forecasts are produced, interpreted and applied in a variety of decision-making processes. In South Africa, a variety of agricultural users exists, ranging from the small-scale farmer to larger commercial farming entities. Useful seasonal are those produced and disseminated with the end user in mind. A retroactive test period during the 1990s, evaluates the perceived impact of incorporating seasonal rainfall forecasts into decisions made by commercial crop farmers in the central parts of South Africa. Although a small sample of commercial farmers was interviewed, the results show some benefits to commercial agriculture if seasonal climate forecast information is continuously and effectively applied over the long-term.

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References

  1. Archer, E. R. M.: 2003, ‘Identifying underserved end-user groups in the provision of climate information’, Bull. Amer. Meteorol. Soc. 84, 1525–1532.CrossRefGoogle Scholar
  2. Anaman, K. A., Thampapillai, D. J., Henderson-Sellers, A., Noar, P. F., and Sullivan P. J.: 1994, ‘Economic and social benefits of meteorological and hydrological services provided by the Australian Bureau of Meteorology’, WMO/TD – No 630, Geneva, 59–62.Google Scholar
  3. Cash, D. W.: 2001, ‘In order to aid in diffusing useful and practical information: Agricultural Extension and boundary organizations’, Science, Technology and Human Values 26(4), 431–453.CrossRefGoogle Scholar
  4. Changnon, S. A., Changnon, J. M., and Changnon, D.: 1995, ‘Uses and applications of climate forecasts for power utilities’, Bull. Amer. Meteor. Soc. 76, 711–720.CrossRefGoogle Scholar
  5. Directorate: Agricultural Statistics: 2002, Abstract of Agricultural Statistics, Pretoria, South Africa.Google Scholar
  6. Eakin, H.: 2000, ‘Smallholder maize production and climatic risk: A case study from Mexico’, Clim Change 45, 19–36.CrossRefGoogle Scholar
  7. Finan, T. J. and Nelson, D. R.: 2001, ‘Making rains, making roads, making do: Public and private adaptations to drought in Ceará, North East Brazil’, Clim. Res. 19, 97–108.CrossRefGoogle Scholar
  8. GCOS 9: 1994, ‘Report on the GCOS working group on socio-economic benefits’, WMO/TD No 643, 11 pp.Google Scholar
  9. Hammer, G. L., Holzworth, D. P., and Stone, R.: 1995, ‘The value of skill in seasonal climate forecasting to wheat crop management in a region of high climatic variability’, Aust. J. GRIC. Res. 47, 717–737.CrossRefGoogle Scholar
  10. Hartman, H. C., Pagano, T. C., Sorooshian, S., and Bales, R.: 2002, ‘Confidence builders – Evaluating seasonal climate forecasts from user perspectives’, Bull. Amer. Meteorol. Soc. 83, 683–698.CrossRefGoogle Scholar
  11. Hansen, J.: 2002, ‘Realising the potential benefits of climate prediction to agriculture: issues, approaches, challenges’, Agricultural Systems 74, 309–330.CrossRefGoogle Scholar
  12. Hulme, M. and Coauthors: 1992, ‘Seasonal rainfall forecasting for Africa. Part II – Application and impact assessment’, Int. J. Environ. Stud. 40, 103–121.CrossRefGoogle Scholar
  13. International Panel on Climate Change: 2001, ‘Climate Change 2001: Impacts, Adaptation, and Vulnerability’, IPCC WGI Third assessment report, www.ipcc.ch.Google Scholar
  14. Joubert, A., Landman, W. A., and Tennant, W. J.: 1998, ‘Review of seasonal rainfall forecasts for summer 1997/98’, ESKOM Report No. TRR/T98/04.Google Scholar
  15. Keen, C. S. and Tyson, P. D.: 1973, ‘Seasonality of South African rainfall: A note on its regional delimination using spectral analysis’, Archiv für Meteorologie, Geophysik und Bioklimatologie, Ser. B 21, 207–214.CrossRefGoogle Scholar
  16. Kininmonth, W. R.: 1994, ‘Economic benefits of long-range weather forecasting’, WMO/TD- No 630, Geneva, 226–229.Google Scholar
  17. Klopper, E.: 1999, ‘The use of seasonal forecasts in South Africa during the 1997/98 rainfall season’, Water SA 25, 311–316.Google Scholar
  18. Klopper, E. and Bartman, A.: 2003, ‘Forecasts and commercial agriculture: a survey of user needs in South Africa’, in O'Brien, K. and Vogel, C. (eds.), Coping with Climate Variability. The Use of Seasonal Climate Forecasts in Southern Africa, Ashgate Studies in Environmental Policy and Practice, Hampshire, England, pp. 170–182.Google Scholar
  19. Kruger, A. C.: 1999, ‘The influence of the decadal-scale variability of summer rainfall on the impact of El Niño and La Niña events in South Africa’, International Journal of Climatology 19, 59–68.CrossRefGoogle Scholar
  20. Landman, W. A. and Goddard, L.: 2002, ‘Statistical recalibration of GCM forecasts over southern Africa using model output statistics’, Journal of Climate 15, 2038–2055.CrossRefGoogle Scholar
  21. Landman, W. A. and Mason, S. J.: 1999, ‘Operational long-lead prediction of South African rainfall using canonical correlation analysis’, International Journal of Climatology 19, 1073–1090.CrossRefGoogle Scholar
  22. Landman, W. A., Mason, S. J., Tyson, P. D., and Tennant, W. J.: 2001, ‘Retro-active skill of multi-tiered forecasts of summer rainfall over southern Africa’, International Journal of Climatology 21, 1–19.CrossRefGoogle Scholar
  23. Landman, W. A. and Tennant, W. J.: 2000, ‘Statistical downscaling of monthly forecasts’, Int. J. Climatol. 20, 1521–1532.CrossRefGoogle Scholar
  24. Lemos, M. C., Finan, T., Fox, R. W., Nelson, D. R., and Tucker, J.: 2002, ‘The use of seasonal climate forecasting in policymaking: lessons from northeast Brazil’, Clim. Change 55, 479–507.CrossRefGoogle Scholar
  25. Letson, D., Llovet, I., Podesta, G., Royce, F., Brescia, V., Lema, D., and Parellada, G.: 2001, ‘User perspectives of climate forecasts: Crop producers in Pergamino, Argentina’, Climate Research 19, 57–67.CrossRefGoogle Scholar
  26. Lindesay, J. A.: 1988, ‘South African rainfall, the Southern Hemisphere semi-annual cycle’, J. Climatology 8, 17–30.CrossRefGoogle Scholar
  27. Lyakov, A. A.: 1994, ‘Analysis of economic benefits of short term, medium term and long term forecasts’, WMO/TD No 630, Geneva, 278–280.Google Scholar
  28. Main, J. P. L. and Hewitson, B. C.: 1995, ‘Regionalisation of daily precipitation in Botswana 1972–1989’, SA Geographical Journal 77, 51–55.Google Scholar
  29. Mjelde, J. W., Thompson, T. N., Nixon, C. J., and Lamb, P. J.: 1997, ‘Utilising a farm-level decision model to help prioritise future climate prediction needs’, Meteor. Appl. 4, 161–170.CrossRefGoogle Scholar
  30. Moser, S. and Dilling, L.: 2004, ‘Making climate hot: communicating the urgency and challenge of global climate change’, Environment 46, 32–46.Google Scholar
  31. Mulenga, H. M., Rouault, M., and Reason, C. J. C.: 2003, ‘Dry summers over northeastern South Africa and associated circulation anomalies’, Climate Res. 25, 29–41.CrossRefGoogle Scholar
  32. National Department of Agriculture: 1997, A profile of agriculture in South Africa, Government Printers, Pretoria, 32 pp.Google Scholar
  33. Nicholls, N.:1999, ‘Cognitive illusions, heuristics and climate prediction’, Bull. Amer. Meteor. Soc. 80, 1385–1397.CrossRefGoogle Scholar
  34. Niewoudt, L. and Groenewald, G. (eds.): 2003, The Challenge of Change, Agricultural, Land and the South African Economy, University of Natal Press, Scottsville, South Africa.Google Scholar
  35. O'Brien, K. and Vogel, C. (eds.): 2003, Coping with Climate Variability: The use of seasonal climate forecasts in southern Africa, Ashgate Studies in Environmental Policy and Practice, Hampshire, England.Google Scholar
  36. O'Loughlin, K.: 1998, ‘El Niño, fires and farmers: communicating with the public through partnerships’, WMO bulletin, 260–264.Google Scholar
  37. Pfaff, A., Broad, K., and Glantz, M. H.: 1999, ‘Who benefits from climate forecasts?’, Nature 397, 645–646.CrossRefGoogle Scholar
  38. Philander, S. G.: 1990, El Niño, La Niña, and the Southern Oscillation, Academic Press. London, 293 pp.Google Scholar
  39. Philander, S. G.: 1999, ‘A review of tropical ocean-atmosphere interactions’, Tellus 51 A-B, 71–90.Google Scholar
  40. Rouault, M., Florenchie, P., Fauchereau, N., and Reason, C. J. C.: 2003, ‘South East Tropical Atlantic Warm Events and Southern African Rainfall’, Geophys. Res. Lett. 30, 10.CrossRefGoogle Scholar
  41. Pulwarty, R. S. and Redmond, K. T.: 1997, ‘Climate and salmon restoration in the Columbia River basin: The role and usability of seasonal forecasts’, Bull. Amer. Meteor. Soc. 78, 381–397.CrossRefGoogle Scholar
  42. Reason, C. J. C. and Mulenga, H. M.: 1999, ‘Relationships between South African rainfall and SST anomalies in the south west Indian Ocean’, Int. J. Climatol. 22, 377–393.CrossRefGoogle Scholar
  43. Reason, C. J. C.: 2001, ‘Subtropical Indian Ocean SST dipole events and southern Africa rainfall’, Geophys. Res. Lett. 28, 2225–2227.CrossRefGoogle Scholar
  44. Reason, C. J. C.: 2002, ‘Sensitivity of the southern African circulation to dipole sea-surface temperature patterns in the south Indian Ocean’, Int. J. Climatol. 22, 377–393.CrossRefGoogle Scholar
  45. Richardson, D. S.: 2000, ‘Skill and relative economic value of the ECMWF ensemble prediction system’, Quart. J. Roy. Meteor. Soc. 126, 649–667.CrossRefGoogle Scholar
  46. Roncoli, C., Ingram, K., and Kirshen, P.: 2001, ‘Can farmers in Burkina Faso use rainfall forecasts?’, Pract. Anthro 22, 24–28.Google Scholar
  47. Schirmer, S.: 2000, ‘Policy visions and historical realities: land reform in the context of recent agricultural developments’, African Studies 59, 143–167.CrossRefGoogle Scholar
  48. Schulze, G. S.: 1989, Seisoensvariasies van reënval oor die somerreënstreke van Suid-Afrika, Unpublished MSc dissertation, Univ. of Pretoria, 205 pp.Google Scholar
  49. Sonka, S. T., Mjelde, J. W., Lamb, P. J., Hollinger, S. E., and Dixon, B. L.: 1987, ‘Valuing climate forecast information’, Journal of Climate and Applied Meteorology 26, 1080–1091.CrossRefGoogle Scholar
  50. Stern, P. C. and Easterling, W. E. (eds.): 1999, ‘Making Climate Forecasts Matter’, Panel on the Human Dimensions of Seasonal-to-Interannual Climate Variability, National Academy Press, Washington, D.C.: 175 pp.Google Scholar
  51. Taljaard, J. J.: 1986, ‘Change of rainfall distribution and circulation patterns over southern Africa in summer’, J. Climatol. 6, 579–592.CrossRefGoogle Scholar
  52. Tennant, W. J. and B. C. Hewitson, 2002, ‘Intra-seasonal rainfall characteristics and their importance to the seasonal prediction problem’, Int. J. Clim. 22, 1033–1048.CrossRefGoogle Scholar
  53. Thornton, P.: 2005, Ex ante Impact Assessment and Seasonal Climate Forecasts: Status and Issues, Paper presented at the International Workshop on Climate Prediction and Agriculture: Advances and Challenges, CLIMAG meeting, Geneva, 11–13 May, 2005.Google Scholar
  54. Tyson, P. D.: 1986, Climate Change and Variability in Southern Africa, Oxford University Press, Cape Town, 220 pp.Google Scholar
  55. Tyson, P. D. and Preston-Whyte, R. A.: 2000, The Weather and Climate of Southern Africa, Oxford University Press, Cape Town, 396 pp.Google Scholar
  56. Van Heerden, J., Terblanche, D. E., and Schulze, G. C.: 1988, ‘The Southern Oscillation and South African summer rainfall’, J. Cimatol. 8, 577–597.Google Scholar
  57. Vislocky, R. L., Fritsch J. M., and DiRienzo, S. N.: 1995, ‘Operational omission and misuse of numerical probability expressions’, Bull. Amer. Meteor. Soc. 76, 49–52.CrossRefGoogle Scholar
  58. Vogel, C. H.: 1994, Consequences of droughts in southern Africa (1960–1992), upublished PhD thesis, University of the Witwatersrand, Johannesburg.Google Scholar
  59. Vogel, C. H.: 2000, ‘Usable science: An assessment of long-term seasonal forecasts amongst farmers in rural areas of South Africa’, SA Geographical Journal 82, 107–116.Google Scholar
  60. Vink, N. and Kirsten, J.: 2003, ‘Agriculture in the National Economy’, in Niewoudt, L. and Groenewald, J. (eds.), The Challenge of Change, Natal University Press, Scottsville, South Africa, pp. 3–19.Google Scholar
  61. Yin, R. K.: 1992, ‘The case study method as toll for doing evaluation’, Current Sociology 40, 121–134.Google Scholar
  62. Zhang, Y., Wallace, J. M., and Battisti, D. S.: 1997, ‘ENSO-like interdecadel variability: 1900-93’, J. Climate 10, 1004–1020.CrossRefGoogle Scholar
  63. Ziervogel, G. and Calder, R.: 2003, ‘Climate variability and rural livelihoods: Assessing the impact of seasonal climate forecasts in Lesotho’, Area 35, 403–417.CrossRefGoogle Scholar
  64. Ziervogel, G. and Downing, T. E.: 2004, ‘Stakeholder networks: improving seasonal climate forecasts’, Climatic Change 65: 73–101.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  1. 1.University of PretoriaPretoriaSouth Africa
  2. 2.University of the WitwatersrandJohannesburgSouth Africa

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