Using rainfall-runoff modeling to interpret lake level data |
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| Authors: | Lars Bengtsson Joakim Malm |
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| Institution: | (1) Department of Water Resources Engineering, Lund University, Box 118, 221 00 Lund, Sweden |
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| Abstract: | Using water balance computations, the behavior of different kinds of lakes is discussed. Simple analytical expressions relating water level to hydrological conditions and lake bathymetry are given. The importance of knowing the river basin area when analyzing lake levels is stressed. A conceptual rainfall-runoff model including lake routing is used to simulate runoff and lake levels and to compute quasi-steady state conditions and long-term transient situations. It is suggested that models can be used to construct curves relating lake levels to precipitation and lake evaporation. By comparing with paleo-lake levels, the annual precipitation related to these levels can be found, provided information is available about the seasonal distribution of the precipitation. |
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| Keywords: | water balance simulated runoff precipitation evaporation |
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