Assessment of regional estimation error by canonical residual kriging

Various regional flood frequency analysis procedures are used in hydrology to estimate hydrological variables at ungauged or partially gauged sites. Relatively few studies have been conducted to evaluate the accuracy of these procedures and estimate the error induced in regional flood frequency esti...

Full description

Saved in:
Bibliographic Details
Published in:Hydrological processes 2011-04, Vol.25 (9), p.1418-1430
Main Authors: Kamali Nezhad, M., Ouarda, T. B. M. J., Chokmani, K., Barbet, M., Bruneau, P., El. Adlouni, S.
Format: Article
Language:English
Subjects:
Assessments
error assessment
Errors
Estimates
estimation error
Floods
Freshwater
Hydrology
local flood frequency analysis
Mathematical models
quantile
Quantiles
Regional
regional model
residual kriging
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Various regional flood frequency analysis procedures are used in hydrology to estimate hydrological variables at ungauged or partially gauged sites. Relatively few studies have been conducted to evaluate the accuracy of these procedures and estimate the error induced in regional flood frequency estimation models. The objective of this paper is to assess the overall error induced in the residual kriging (RK) regional flood frequency estimation model. The two main error sources in specific flood quantile estimation using RK are the error induced in the quantiles local estimation procedure and the error resulting from the regional quantile estimation process. Therefore, for an overall error assessment, the corresponding errors associated with these two steps must be quantified. Results show that the main source of error in RK is the error induced into the regional quantile estimation method. Results also indicate that the accuracy of the regional estimates increases with decreasing return periods. Copyright © 2010 John Wiley & Sons, Ltd.
ISSN:0885-6087
1099-1085
1099-1085
DOI:10.1002/hyp.7908