Research Article
Jul 1981
Identification of Streamflow Stochastic Models
Publication: Journal of the Hydraulics Division
Volume 107, Issue 7
Abstract
The identification of streamflow stochastic models is explored. The identification of the type of stochastic model is made, based on a conceptual physical representation of natural watershed. The identification of the form of the model is made, based on the recently developed R-functions and S-functions. ARMA is the autoregressive moving average. For a ARMA(p,q) precipitation input, the ground-water storage is an ARMA(p+1, q) process, and the streamflow is an ARMA(p+1, q+1) process. In general, such ground-water and streamflow processes belong to the class of restricted ARMA processes in the sense that their parameter space is a subspace of that corresponding to the general ARMA models. The form or order of the ground-water and streamflow ARMA processes for given historical time series can be uniquely identified by using the R-functions and S-functions. An example is given as a application of such techniques.
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Information
Published In
Journal of the Hydraulics Division
Volume 107 • Issue 7 • July 1981
Pages: 853 - 866
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Jul 1981
Published online: Feb 3, 2021
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Authors
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Jose D. Salas, M.ASCE
Assoc. Prof., Dept. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo. 80523
Ricardo A. Smith
Grad. Student, Dept. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo. 80523
Jayantha T. B. Obeysekera
Grad. Student, Dept. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo. 80523
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.