THE EFFECT OF STATION DENSITY AND REGIONAL DIVISION ON SPATIAL DISTRIBUTION OF DAILY RAINFALL

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SAGHAFIAN B.; RAHIMI BANDARABADI S.; TAHERI SHAHR AEINI H.; GHAYOUMIAN J.

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Journal: ESTEGHLAL Year:2005 | Volume:24 | Issue:1 Page(s): 59-75

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Title

THE EFFECT OF STATION DENSITY AND REGIONAL DIVISION ON SPATIAL DISTRIBUTION OF DAILY RAINFALL

Author(s)

SAGHAFIAN B. | RAHIMI BANDARABADI S. | TAHERI SHAHR AEINI H. | GHAYOUMIAN J. | Issue Writer Certificate

Keywords

CLUSTER ANALYSISQ4

STATION DENSITYQ4

INTERPOLATIONQ3

GEOSTATISTICSQ4

DAILY RAINFALLQ4

CROSS VALIDATIONQ4

IRANQ4

Abstract

Rainfall is one of the most important climatic variables in the hydrology cycle. In flood estimation as well as environmental pollution studies in medium to large watersheds not on only must temporal pattern of rainfall be known, but also the knowledge of its spatial distribution is required. Estimation of DAILY RAINFALL distribution without comparison and selection of suitable methods may lead to errors in input parameters of rainfall - runoff models. INTERPOLATION methods are among the techniques for estimating spatial distribution of rainfall. In this study, Thin Plate Smoothing Spines (TPSS), Weighted Moving Average (WMA) and Kriging are applied to estimate spatial distribution in the southwest of IRAN. CROSS VALIDATION technique is used for comparison and evaluation of the methods. The results of analysis with two different STATION DENSITY showed that the TPSS method with power of 2 is the most accurate method in estimating DAILY RAINFALL. Zoning of the region also increased the INTERPOLATION accuracy. Generally speaking, division of the region based on CLUSTER ANALYSIS improves accuracy compared with division by inter basin boundaries.

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APA: Copy

SAGHAFIAN, B., RAHIMI BANDARABADI, S., TAHERI SHAHR AEINI, H., & GHAYOUMIAN, J.. (2005). THE EFFECT OF STATION DENSITY AND REGIONAL DIVISION ON SPATIAL DISTRIBUTION OF DAILY RAINFALL. ESTEGHLAL, 24(1), 59-75. SID. https://sid.ir/paper/6020/en

Vancouver: Copy

SAGHAFIAN B., RAHIMI BANDARABADI S., TAHERI SHAHR AEINI H., GHAYOUMIAN J.. THE EFFECT OF STATION DENSITY AND REGIONAL DIVISION ON SPATIAL DISTRIBUTION OF DAILY RAINFALL. ESTEGHLAL[Internet]. 2005;24(1):59-75. Available from: https://sid.ir/paper/6020/en

IEEE: Copy

B. SAGHAFIAN, S. RAHIMI BANDARABADI, H. TAHERI SHAHR AEINI, and J. GHAYOUMIAN, “THE EFFECT OF STATION DENSITY AND REGIONAL DIVISION ON SPATIAL DISTRIBUTION OF DAILY RAINFALL,” ESTEGHLAL, vol. 24, no. 1, pp. 59–75, 2005, [Online]. Available: https://sid.ir/paper/6020/en

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