Abstract
Oxygen isotope data from groundwater, streams and crater lakes in central Ethiopia provide a basis for modelling lake hydrological and isotopic budgets. The environmental parameters δ A(isotopic composition of vapor) and ε* (equilibrium fractionation factor) were determined by a semi-empirical approach using one lake as a terminal index lake. The models show that lake oxygen-isotope composition is more sensitive to rainfall-related parameters (humidity and δ A) than to the isotopic composition of inflow (δ in). The isotopic composition of the lacustrine sedimentary carbonates should therefore provide a record of past rainfall variation.
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References
Ali, A. (1999) River-Groundwater Interactions in the Sekelo-Akaki Basin. Unpublished M.Sc thesis, Addis Ababa University.
Almendinger, J.A. (1990). Groundwater control of closed-basin lake levels under steady state conditions. Journal of Hydrology 112, 293–318.
Ayenew, T. (1998) The Hydrogeological System of the Lake District Basin, Ethiopia. Ph.D. thesis, ITC, Enschede, The Netherlands.
Crowe, A.S. (1990). Numerical modelling of the groundwater contribution to the hydrological budget of lakes, in E.S. Simpson, E.S. and J.M. Sharp (eds.), Selected Papers on Hydrogeology IAH pub. 1, 283–294.
Crowe, A.S. and Schwartz, F.W. (1981) Simulation of lake watershed systems. I. Description and sensitivity of the model. Journal of Hydrology 52, 71–105.
Craig, H., and Gordon, L.I. (1965) Deuterium and oxygen-18 variations in the ocean and marine atmosphere, in E. Tongiorgi (ed.) Stable Isotopes in Oceanographic Studies and Paleo-temperatures, Spoleto 1965, Consiglio Nazionale della Richerche, Pisa, pp. 9–130.
Craig, H., Lupton, J.E., and Horowiff, R.M. (1977) Isotope Geochemistry and Hydrology of Geothermal Waters in the Ethiopian Rift Valley. Scripps Inst. of Oceanogr. Univ. of California report, 160 pp.
Darling, W.G. (1996) The Geochemistry of Fluid Processes in the Eastern Branch of the East African Rift System. Ph.D. thesis, British Geological Survey, 235 pp.
Dincer, T. (1968) The use of oxygen 18 and deuterium concentrations in the water balance of lakes. Water Resources Research 4, 1289–1306.
Gasparon, M., Innocenti, F., Manetti, P., Peccerillo, A., and Tsegaye, A (1993) Genesis of Pliocene to Recent mafic-felsic volcanism in the Debre Zeyt area, central Ethiopia: volcanological and geochemical constraints. Journal of African Earth Sciences 17, 145–165.
Gat, J.R., and Levy, Y. (1978) Isotope hydrology of inland sabkhas in the Bardawil area, Sinai. Limnology and Oceanography 23, 841–850.
Gemechu, D. (1977) Aspects of Climate and Water Budget in Ethiopia. Addis Ababa University Press. Addis Ababa.
Gonfiantini, R., Borsi, S., Ferrara, G., and Panichi, C. (1973) Isotopic composition of waters from the Danakil depression (Ethiopia). Earth and Planetary Science Letters 18, 13–21.
Gonfiantini, R. (1986) Environmental isotopes in lakes studies, in Fritz and Fontes (eds.), Handbook of Environmental Isotope Geochemistry, Elsevier.
IAEA, (1981) Stable isotope hydrology: deuterium and oxygen-18 in the water cycle, technical reports series no.201, Vienna, 203–221.
Kebede S., Lamb, H. F., Mohammed, U. and Telford, R. (in press) The relation between hydrology and hydrochemistry of Bishoftu crater lakes, Ethiopia. SINET: Ethiopian Journal of Science
Kebede, S. (1999) The Hydrology and Hydrochemistry of Bishoftu Crater Lakes. Hydrological and Isotope Modeling. Unpublished M.Sc thesis, Addis Ababa University, 125 pp.
Krabbenhoft, D.P., Bowser, C.J., Anderson, M.Y., and Valley, J.W. (1990) Estimating Groundwater Exchange with lakes, the stable isotope mass balance method. Water Resources Research 26, 2445–2453.
Krabbenhoft, D.P., Bowser, C.J., Kendall, C., and Gat, J. (1994) Use of oxygen-18 and deuterium to asses the hydrology of groundwater-lake systems. In Environmental chemistry of lakes and reservoirs, American Chemical Society, USA.
Lamb, H., Kebede, S., Leng, M., Ricketts, D., Telford, R. and Mohammed, U. (this volume) Origin and isotopic composition of aragonite laminae in an Ethiopian crater lake.
Lorenz, V. (1986) On the growth of maars and diatremes and its relevance to the formation of tuff rings. J. Volcanology 48, 265–274.
Pearson, F.J., and Coplen, T.B. (1978) Stable isotope studies of lakes, in A. Lerman (ed.), Lakes: Geology, Chemistry, Physics, Springer.
Penman, H.L. (1948) Natural evaporation from open water, bare soil, and grass. Royal Soc. London Proceed, Series A, 193, 120–145.
Prosser, M.V., Wood, R.B., and Baxter, R.M. (1968) The Bishoftu Crater Lakes: A bathymetric and chemical study. Archiv. Hydrobiol. 65, 309–324.
Ricketts, R.D. and Johnson, T.C. (1996) Climate change in the Turkana basin as deduced from a 4000 year long 180 record. Earth and Planetary Science Letters 142, 7–17.
Rozanski, K., Araguas-Araguas, L., and Gonfiantini, R. (1996) Isotope patterns of precipitation in East Africa, in T.C. Johnson and E.O. Odada (eds.), The Limnology, Climatology and Paleoclimatology of the East African Lakes, Gordon and Breach, Amsterdam, pp 79–93.
Turner, B.F., Gardner, L.R., Sharp, W.E., and Blood, E.R. (1994) The geochemistry of lake Bosumtiwi, a hydrologically closed basin in the humid zone of tropical Ghana. Limnology and Oceanography 41, 1415–1424.
Winter, T.C. (1978). Groundwater component of lake water and nutrient budgets. Verh. Mt. Ver. Limnol. 20, 438–444.
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Kebede, S., Lamb, H., Telford, R., Leng, M., Umer, M. (2002). Lake — Groundwater Relationships, Oxygen Isotope Balance and Climate Sensitivity of the Bishoftu Crater Lakes, Ethiopia. In: Odada, E.O., Olago, D.O. (eds) The East African Great Lakes: Limnology, Palaeolimnology and Biodiversity. Advances in Global Change Research, vol 12. Springer, Dordrecht. https://doi.org/10.1007/0-306-48201-0_9
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DOI: https://doi.org/10.1007/0-306-48201-0_9
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