Sensitivity analysis of distributed rainfall-runoff models

Freddy Soria, So Kazama, Masaki Sawamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Two Monte Carlo based methods were applied in a mountainous watershed. The methods covered were the Generalized Likelihood Uncertainty Estimation Technique (GLUE) and the variance based Sobol technique. The former assess the likelihood of a model to describe a system recognizing that model and data are subject to uncertainty; the latter statistically evaluates the uncertainty in the estimation of model parameter values. Both are commonly used in model predictive uncertainty. This paper analyzed their applicability to distributed rainfall-runoff schemes. The methods were found to be complimentary: GLUE technique contributed the criteria for rejection/acceptance of behavioral models, and Sobol indices described the relative variance contribution of model parameters on total discharge. Bayesian updating within GLUE, and the spatial distribution of sensitivity indices were not covered, and can be the key to extend the analysis into fully distributed schemes.

Original languageEnglish
Title of host publicationAdvances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS
PublisherSpringer-Verlag Berlin Heidelberg
Pages24-28
Number of pages5
ISBN (Print)9783540894643
Publication statusPublished - 2009 Jan 1
Event16th Congress of Asia and Pacific Division of International Association of Hydraulic Engineering and Research, APD 2008 and the 3rd IAHR International Symposium on Hydraulic Structures, ISHS 2008 - Nanjing, China
Duration: 2008 Oct 202008 Oct 23

Publication series

NameAdvances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS

Other

Other16th Congress of Asia and Pacific Division of International Association of Hydraulic Engineering and Research, APD 2008 and the 3rd IAHR International Symposium on Hydraulic Structures, ISHS 2008
CountryChina
CityNanjing
Period08/10/2008/10/23

Keywords

  • Generalized likelihood uncertainty estimation
  • Monte Carlo experiments
  • Variance based methods

ASJC Scopus subject areas

  • Civil and Structural Engineering

Fingerprint Dive into the research topics of 'Sensitivity analysis of distributed rainfall-runoff models'. Together they form a unique fingerprint.

Cite this