Determination of the Best Hierarchical Clustering Method for Regional Analysis of Base Flow Index in Kerman Province Catchments

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KAZEMI RAHIM; SHARIFI FOROOD

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Journal: JOURNAL OF WATERSHED MANAGEMENT RESEARCH Year:2019 | Volume:10 | Issue:19 Page(s): 95-105

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Title

Determination of the Best Hierarchical Clustering Method for Regional Analysis of Base Flow Index in Kerman Province Catchments

Author(s)

KAZEMI RAHIM | SHARIFI FOROOD | Issue Writer Certificate

Keywords

Base Flow IndexQ1

Factor AnalysisQ1

Hierarchical ClusteringQ1

Model EfficiencyQ2

Regional AnalysisQ2

Abstract

The lack of complete coverage of hydrological data forces hydrologists to use the homogenization methods in Regional Analysis. In this research, in order to choose the best Hierarchical Clustering method for Regional Analysis, base flow and related index were extracted from daily stream flow data using two parameter recursive digital filters in 43 hydrometric stations of the Kerman province. Physiographic, climatic and hydrological parameters were calculated. Using Factor Analysis of 14 parameters, six factors including: hydrograph recession constant, mean annual precipitation, actual evapotranspiration, permeability, topography (slope and height) and curve number were chosen as the most important independent factors. Hierarchical Clustering of catchments using independent factors in different methods including: Nearest neighbor, Furthest neighbor, Centroid clustering and Ward were down. Then the regional equations using linear regression at 1% significant level for each homogeny region were determined. To compare and evaluate the accuracy and efficiency of the models, Independence errors, Colinerity and normal distribution of errors were tested. The results showed that “ Centroid clustering method " because of low relative error with the amount of 27. 137% for zone A and 36. 89% for zone B of homogeneous region, minimum standard error of the estimate and the high correlation coefficient, diagnosed as the best homogeneity method to estimate regional Base Flow Index in the study area.

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APA: Copy

KAZEMI, RAHIM, & SHARIFI, FOROOD. (2019). Determination of the Best Hierarchical Clustering Method for Regional Analysis of Base Flow Index in Kerman Province Catchments. JOURNAL OF WATERSHED MANAGEMENT RESEARCH, 10(19 ), 95-105. SID. https://sid.ir/paper/371219/en

Vancouver: Copy

KAZEMI RAHIM, SHARIFI FOROOD. Determination of the Best Hierarchical Clustering Method for Regional Analysis of Base Flow Index in Kerman Province Catchments. JOURNAL OF WATERSHED MANAGEMENT RESEARCH[Internet]. 2019;10(19 ):95-105. Available from: https://sid.ir/paper/371219/en

IEEE: Copy

RAHIM KAZEMI, and FOROOD SHARIFI, “Determination of the Best Hierarchical Clustering Method for Regional Analysis of Base Flow Index in Kerman Province Catchments,” JOURNAL OF WATERSHED MANAGEMENT RESEARCH, vol. 10, no. 19 , pp. 95–105, 2019, [Online]. Available: https://sid.ir/paper/371219/en

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