Comparison of Stochasic Models for Monthly Streamflow Sequences
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Date
1994-06
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Addis Ababa University
Abstract
In this research , statistical work in stochastic modelling of hydrologic time series
is discussed. The theme is the comparison of stationarity and non-stationarity approaches
for stochastic simulation of monthly streamflow sequences. The paper first introduces
various concepts related to stochastic modelling; the history of stochastic simulation and
applications of stochastic modelling in hydrology; and the step-by-step modelling
procedures. Then the paper describes how synthetic streamflow sequences can be generated
using these procedures. As a particular case, synthetic streamflow sequences were generated
for two streams in Ethiopia using both stationarity and non-stationarity approaches. At last,
based on these synthetic flows , an attempt was made to compare the performance of the
two approaches with some comments and recommendations
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Keywords
Monthly Streamflow Sequences