HR: 0800h
AN: H51B-02    [Abstracts]
TI: Regional Flood Frequency Estimation at Ungauged Sites in the Balsas River Basin, Mexico
AU: Ouarda, T
EM: taha_ouarda@ete.inrs.ca
AF: INRS-ETE, University of Quebec, 490, de la Couronne, Quebec, QC G1K 9A9, Canada
AU: * BA, K
EM: khalidou@uaemex.mx
AF: Centro Interamericano de Recursos del Agua (CIRA), UAEM, Cerro de Coatepec SN, CU, FIUAEM, Toluca, MEX 50130, Mexico
AU: Diaz-Delgado, C
EM: cdiaz@uaemex.mx
AF: Centro Interamericano de Recursos del Agua (CIRA), UAEM, Cerro de Coatepec SN, CU, FIUAEM, Toluca, MEX 50130, Mexico
AU: Carsteanu, A
EM: alin@math.cinvestav.mx
AF: Center for Research and Advanced Studies (CINVESTAV), Mathematics Department, Av. IPN 2508, Col. San Pedro Zacatenco, Mexico City, DF 07360, Mexico
AU: Gingras, H
EM: hugo_gingras@ete.inrs.ca
AF: INRS-ETE, University of Quebec, 490, de la Couronne, Quebec, QC G1K 9A9, Canada
AU: Quentin, E
EM: equentin@uaemex.mx
AF: Centro Interamericano de Recursos del Agua (CIRA), UAEM, Cerro de Coatepec SN, CU, FIUAEM, Toluca, MEX 50130, Mexico
AU: Trujillo, E
EM: etf@uaemex.mx
AF: Centro Interamericano de Recursos del Agua (CIRA), UAEM, Cerro de Coatepec SN, CU, FIUAEM, Toluca, MEX 50130, Mexico
AU: Bobee, B
EM: bernard_bobee@ete.inrs.ca
AF: INRS-ETE, University of Quebec, 490, de la Couronne, Quebec, QC G1K 9A9, Canada
AB: This work presents an adaptation of some regional estimation approaches to southern climates and an application of regional frequency analysis to the Balsas River Basin located in Mexico. Three approaches are used in this study for the delineation of homogeneous regions: the first one is the cluster analysis approach which leads to fixed hydrologic regions, the second one is the canonical correlation analysis approach (Ouarda et al., 2001) which allows the determination of hydrologic neighborhoods that are specific to the site of interest, and the third one is a revised version of the canonical correlation analysis approach that is free of parameters to optimize and which can be automated easily. The two versions of the canonical correlation analysis approach allow also to identify the variables to use during the step of regional estimation. Regional estimation is carried out based on a multiple regression approach. A data set of 29 stations from several Mexican River Basins in and around the Balsas region is used to identify the advantages and weaknesses of each method of delineation of homogeneous regions and to demonstrate the usefulness of these types of regional approaches. Results indicate clearly the advantages of the neighborhood type of approach and the superiority of the two canonical correlation analysis based methods. Results demonstrate also the robustness of these methods through their application to a real world case study with a relatively limited number of stations.
DE: 1817 Extreme events
SC: Hydrology [H]
MN: 2007 Joint Assembly