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Hydrologic homogeneous regions using monthly streamflow in turkey

Kahya, Ercan and Demirel, Mehmet C. and Bég, Osman A. (2008) Hydrologic homogeneous regions using monthly streamflow in turkey. Earth Sciences Research Journal; Vol. 12, núm. 2 (2008); 181-193 Earth Sciences Research Journal; Vol. 12, núm. 2 (2008); 181-193 2339-3459 1794-6190 .

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Cluster analysis of gauged streamflow records into homogeneous and robust regions is an important tool for the characterization of hydrologic systems. In this paper we applied the hierarchical cluster analysis to the task of objectively classifying streamflow data into regions encompassing similar streamflow patterns over Turkey.The performance of three standardization techniques was also tested, and standardizing by range was found better than standardizing with zero mean and unit variance. Clustering was carried out using Ward's minimum variance method which became prominent in managing water resources with squared Euclidean dissimilarity measures on 80 streamflow stations. The stations have natural flow regimes where no intensive river regulation had occurred. A general conclusion drawn is that the zones having similar streamflow pattern were not be overlapped well with the conventional climate zones of Turkey; however, they are coherent with the climate zones of Turkey recently redefined by the cluster analysis to total precipitation data as well as homogenous streamflow zones of Turkey determined by the rotated principal component analysis. The regional streamflow informationin this study can significantly improve the accuracy of flow predictions in ungauged watersheds.

Tipo de documento:Artículo - Article
Unidad administrativa:Revistas electrónicas UN > Earth Sciences Research Journal
Código ID:24075
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :27 Junio 2014 15:23
Ultima modificación:06 Junio 2018 10:35
Ultima modificación:06 Junio 2018 10:35
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