Abstract
The East African lakes have exhibited dramaticfluctuations on both historical and paleo-climatictime scales. Levels of these lakes, and otherhistorical indicators in Africa, suggested thatenvironmental conditions in the nineteenth centurywere much more extreme than anything evident in themodern record. In this study, a water balance modelis used to estimate the rainfall associated with theseconditions, based on the Lake Victoria record. Theresults suggest that the conditions were not unlikeanomalous periods found during the twentieth century,but they may have persisted for somewhat longerperiods of time. The paper also demonstrates ageneric tool that can be applied to interpretinghistorical and paleo-lake levels in quantitative termsof rainfall.
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Ba, M. B. and Nicholson, S. E.: 1998, ‘Analysis of Convective Activity and its Relationship to the Rainfall over the Rift Valley Lakes of East Africa during 1983–1990 Using the METEOSAT Infrared Channel’, J. Clim. Appl. Meteorol. 10, 1250–1264.
Beadle, L. C.: 1974, The Inland Waters of Tropical Africa, Longman, London, p. 365.
Bishop, W. W.: 1969, ‘Pleistocene Stratigraphy in Uganda’, Geol. Survey Uganda, Memoir No. X, Entebbe.
Flohn, H. and Burkhardt T.: 1985, ‘Nile Runoff at Aswan and Lake Victoria: A Case of a Discontinuous Climate Time Series’, Z. Gletscherk. Glazialgeol. 21, 125–130.
Hastenrath, S. L. and Kutzbach, J. E.: 1983, ‘Paleoclimatic Estimates from Water and Energy Budgets of East African Lakes’, Quat. Res. 19, 141–153.
Howell, P. P., Lock, M., and Cobb, S.: 1988, The Jonglei Canal: Impact and Opportunity, Cambridge University Press.
Johnson, D. H.: 1992, ‘Reconstructing a History of Local Floods in the Upper Nile Region of the Sudan’, Int. J. Afr. Hist. Stud. 23, 607–649.
Lamb, H. H.: 1966, ‘Climate of the 1960s’, Geogr. J. 132, 183–212.
Lehman, J. T., Mugidde, R., and Lehman, D. A.: 1998, ‘Lake Victoria Plankton Ecology: Mixing Depth and Climate-Driven Control of Lake Condition’, in Lehman, J. T. (ed.), Environmental Change and Response in East African Lakes, Kluwer Academic Publishers, Dordrecht, pp. 99–116.
Nicholson, S. E.: 1978, ‘Climatic Variations in the Sahel and Other African Regions during the Past Five Centuries’, J. Arid Environ. 1, 3–24.
Nicholson, S. E.: 1980, ‘Saharan Climates in Historic Times’, in Williams, M. A. J. and Faure, H. (eds.), The Sahara and the Nile, Balkema, Rotterdam, pp. 173–200.
Nicholson, S. E.: 1981, ‘The Historical Climatology of Africa’, in Wigley, T. M. L., Ingram, M. J., and Farmer, G. (eds.), Climate and History, Cambridge Press, Cambridge, U.K., pp. 249–270.
Nicholson, S. E.: 1995, ‘Environmental Change Within the Historical Period’, in Goudie, A. S., Adams, W. M., and Orme, A. (eds.), The Physical Geography of Africa, Oxford University Press, Oxford, U.K., pp. 60–75.
Nicholson, S. E.: 1996, ‘A Review of Climate Dynamics and Climate Variability in Eastern Africa’, in Johnson, T. C. and Odada, E. (eds.), The Limnology, Climatology and Paleoclimatology of the East African Lakes, Gordon and Breach, Amsterdam, pp. 25–56.
Nicholson, S. E.: 1998a, ‘Historical Fluctuations of Lake Victoria and Other Lakes in the Northern Rift Valley of East Africa’, in Lehman, J. T. (ed.), Environmental Change and Response in East African Lakes, Kluwer Academic Publishers, Dordrecht, pp. 7–35.
Nicholson, S. E.: 1998b, ‘Fluctuations of Rift Valley Lakes Malawi and Chilwa during Historical Times: A Synthesis of Geological, Archeological and Historical Information’, in Lehman, J. T. (ed.), Environmental Change and Response in East African Lakes, Kluwer Academic Publishers, Dordrecht, pp. 207–231.
Nicholson, S. E.: 1999, ‘Historical and Modern Fluctuations of Lakes Tanganyika and Rukwa and Their Relationship to Rainfall Variability’, Clim. Change 41, 53–71.
Nicholson, S. E.: 2000, ‘The Nature of Rainfall Variability over Africa on Time Scales of Decades to Millenia’, Glob. Plan. Change, in press.
Nicholson, S. E., Yin, X., and Ba, M. B.: 2000, ‘On the Feasibility of Using a Lake Water Balance Model to Infer Rainfall: An Example from Lake Victoria’, Hydro. Sci. J. 45, 75–96.
Ochumba, P. B. O.: 1996, ‘Measurement of Water Currents, Temperature, Dissolved Oxygen and Winds on the Kenyan Lake Victoria’, in Johnson, T. C. and Odada, E. (eds.), The Limnology, Climatology and Paleoclimatology of the East African Lakes, Gordon and Breach, Amsterdam, pp. 155–168.
Owen, R. B., Crossler, R., Johnson, T. C., Tweddle, D., Kornfield, I., Davison, S., Eccles, D. H., and Engstrom, D. E.: 1990, ‘Major Low Levels of Lake Malawi and Their Implications for Speciation Rates in Cichlid Fishes’, Proc. Roy. Soc. Lond. B 240, 519–553.
Quinn, W. E.: 1992, ‘A Study of Southern Oscillation-Related Climatic Activity for A.D. 622–1900 Incorporating Nile River Flood Data’, in Diaz, H. F. and Markgraf, V. (eds.), El Niño: Historical and Paleoclimatic Aspects of the Southern Oscillation, Cambridge University Press, New York, pp. 119–150.
Ravenstein, E. G.: 1901, ‘Lake Level of the Victoria Nyanza’, Geogr. J. 18, 403–406.
Shaw, P.: 1985, ‘The Desiccation of Lake Ngami: An Historical Perspective’, Geogr. J. 151, 318–326.
Shaw, P., Crossley, R., and Davison-Hirschmann, S.: 1984, ‘A Major Fluctuation in the Level of Lake Chilwa, Malawi, during the Iron Age’, Paleoecol. Africa 16, 391–395.
Stager, J. C., Cumming, B., and Meeker, L.: 1997, ‘A High-Resolution 11,400-Year Diatom Record from Lake Victoria, East Africa’, Quat. Res. 47, 81–89.
Toussoun, O.: 1925, ‘Mémoire sur l'histoire du Nil’, Mémoire de l'Institut d'Egypte 9.
Verschuren, D.: 1999, ‘Sedimentation Controls on the Preservation and Time Resolution of Climate-Proxy Records from Shallow Fluctuating Lakes’, Quat. Sci. Rev. 18, 821–837.
Yin, X. and Nicholson, S. E.: 1998, ‘The Water Balance of Lake Victoria’, Hydrol. Sci. J. 43, 789–811.
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Nicholson, S.E., Yin, X. Rainfall Conditions in Equatorial East Africa during the Nineteenth Century as Inferred from the Record of Lake Victoria. Climatic Change 48, 387–398 (2001). https://doi.org/10.1023/A:1010736008362
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DOI: https://doi.org/10.1023/A:1010736008362