EVALUATION AND ESTIMATION OF THE 24 HOUR MAXIMUM RAINFALL IN THE PROVICE OF GOLESTAN

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JAHANI SAMANEH; DELBARI MASOUMEH

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Journal: Journal of Water Resources Engineering Year:2009 | Volume:2 | Issue:4 Page(s): 13-22

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Information Journal Paper

Title

EVALUATION AND ESTIMATION OF THE 24 HOUR MAXIMUM RAINFALL IN THE PROVICE OF GOLESTAN

Author(s)

JAHANI SAMANEH | DELBARI MASOUMEH | Issue Writer Certificate

Keywords

GOLESTANQ2

SPATIAL VARIABILITYQ2

24 HOUR RAINFALLQ3

GEOSTATISTICSQ2

KRIGINGQ2

Abstract

Spatail variability of rainfall has diverse effects on the management and planning of water resources on a watershed, as well as on the national scale. SPATIAL VARIABILITY analysis of different parameters, e.g. rainfall, can be very important in estimating the water balance uncertainties and in the decision-making processes. In the presence of Spatail correlation between observations, application of Geostatistical interpolation methods provides usually provides close estimation of the sought values. This technique was implemented in the deformination of the abundance of the 24 hr maximum rainfall of 27 rain guaging stations in GOLESTAN plain.The methods used were ordinary KRIGING, cokriging and weighted moving average. Cross validation was used to evaluate different interpolation methods. Statistical analysis showed that winter rainfall had the smallest coefficient of variation in comparison with the other time periods used. Geostatistical analysis showed a strong spatial correlation of the data; the best semivariogram model was spherical. The cross-validation results indicated that except for winter, cokriging results in a smaller error for rainfall estimation. Moreover, the generated rainfall maps indicate that the northern region of the presence reccives leave amount of precipitation.

Cites

AN EVALUATION OF DETERMINISTIC AND GEOSTATISTICS INTERPOLATION MODELS TO PRECIPITATION REGIONALIZATION IN ARDEBIL PROVINCE

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APA: Copy

JAHANI, SAMANEH, & DELBARI, MASOUMEH. (2009). EVALUATION AND ESTIMATION OF THE 24 HOUR MAXIMUM RAINFALL IN THE PROVICE OF GOLESTAN. WATER ENGINEERING, 2(4), 13-22. SID. https://sid.ir/paper/169589/en

Vancouver: Copy

JAHANI SAMANEH, DELBARI MASOUMEH. EVALUATION AND ESTIMATION OF THE 24 HOUR MAXIMUM RAINFALL IN THE PROVICE OF GOLESTAN. WATER ENGINEERING[Internet]. 2009;2(4):13-22. Available from: https://sid.ir/paper/169589/en

IEEE: Copy

SAMANEH JAHANI, and MASOUMEH DELBARI, “EVALUATION AND ESTIMATION OF THE 24 HOUR MAXIMUM RAINFALL IN THE PROVICE OF GOLESTAN,” WATER ENGINEERING, vol. 2, no. 4, pp. 13–22, 2009, [Online]. Available: https://sid.ir/paper/169589/en

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