The Generation of Missing River Flow Data PDF

Keywords

time-series model, river flow, Iraq

Abstract

A time series model is presented for use in generating missing river flow data. A 14-year record average monthly flows of the river Khabur at Zakho (Iraq) is used as a case-study. The time series model of monthly river flows consists of a deterministic component and stochastic component. The deterministic component is presented by a periodic model, while the stochastic component is fitted to a third-order-autoregressive AR(3) model using the Box-Jenkins approach of time series analysis. The model explains more than 87% of the total variance of the original series. The model is then used in generating a sequence of missing data.