Discrete dynamic-stochastic model of long-term river runoff variations

被引：0
|
作者：
A. V. Frolov
机构：
[1] Russian Academy of Sciences,Water Problems Institute
来源：
Water Resources | 2011年 / 38卷
关键词：
long-term runoff variations; dynamic-stochastic models; Markov processes; stochastic equation of water balance for a watershed;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A model of long-term river runoff variations is proposed. The model is based on a difference stochastic equation of water balance on a watershed. Precipitation and evaporation on the watershed are simulated by stochastic, dependent, non-Gaussian Markov processes. Long-term river runoff variations are described by a component of three-dimensional non-Gaussian Markov process. It is shown that the autocorrelation and skewness coefficients for river runoff can be negative. The proposed model can be used to assess the effect of climate-induced variations in precipitation and evaporation regimes in a watershed on long-term river runoff variations.
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页码：583 / 592
页数：9
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