Abstract
The problem of moment preservation associated with the use of the Mejia and Rousselle model in a staged disaggregation scheme is addressed in this paper. General parameter estimation equations are derived. Different from the original parameter estimation equations, the equations proposed herein employ two corrected historical moments which are shown to be conditional on the stage and the annual input generation model. With parameters estimated from the proposed equations, the modeling can exactly preserve the historical moments of interest and maintain the linear relationship between the input and output of each disaggregation process.
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Lin, GF., Lee, FC. Multistage disaggregation processes in stochastic hydrology. Water Resour Manage 6, 101–115 (1992). https://doi.org/10.1007/BF00872206
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DOI: https://doi.org/10.1007/BF00872206