SPATIAL ESTIMATION OF GROUNDWATER QUALITY FACTORS USING GEOSTATISTICAL METHODS (CASE STUDY: GOLPAYEGAN PLAIN)

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HAJIHASHEMIJAZI M.R.; ATASHGAHI M.; HAMIDIAN A.H.

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Journal: Journal of Natural Environment Year:2011 | Volume:63 | Issue:4 Page(s): 347-357

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Title

SPATIAL ESTIMATION OF GROUNDWATER QUALITY FACTORS USING GEOSTATISTICAL METHODS (CASE STUDY: GOLPAYEGAN PLAIN)

Author(s)

HAJIHASHEMIJAZI M.R. | ATASHGAHI M. | HAMIDIAN A.H. | Issue Writer Certificate

Keywords

GROUNDWATER QUALITY FACTORQ3

KRIGINGQ2

COKRIGINGQ2

RMSEQ2

GOLPAYEGANQ2

Abstract

Nowadays, much attention has been paid on using geostatistical methods for estimation of spatial parameters, either using the variables of these parameters (kriging) or auxiliary variables (cokriging), in water and soil sciences. The quality of ground water for agriculture is very important; however, it is expensive and time consuming to measure parameters such as SAR, Na, Ca, TH, TDS and EC. Therefore, it is essential to explore methods for estimation of these parameters based on those which can be easily measured. In this paper, information on individual samples taken from 84 wells of GOLPAYEGAN plain was investigated using, KRIGING and COKRIGING geostatistical methods. Variograms were produced using the normalized data. In order to select the appropriate model fitting the experimental variograms, lower values of RSS and stronger spatial structures were used. Outputs of the COKRIGING and KRIGING for estimation of SAR, Na, Ca, TH, TDS and EC using RMSE were evaluated. The results showed no preference for using COKRIGING over KRIGING method. However, because of lower RMSE value of COKRIGING, this method was used for the preparation of underground water zoning maps using GIS.

Cites

ارزیابی کارایی روشهای زمین آماری در تهیه نقشه تغییرات TDS و PH چشمه ها (مطالعه موردی: حوضه آبخیز میرده، کردستان)

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APA: Copy

HAJIHASHEMIJAZI, M.R., ATASHGAHI, M., & HAMIDIAN, A.H.. (2011). SPATIAL ESTIMATION OF GROUNDWATER QUALITY FACTORS USING GEOSTATISTICAL METHODS (CASE STUDY: GOLPAYEGAN PLAIN). JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 63(4), 347-357. SID. https://sid.ir/paper/195063/en

Vancouver: Copy

HAJIHASHEMIJAZI M.R., ATASHGAHI M., HAMIDIAN A.H.. SPATIAL ESTIMATION OF GROUNDWATER QUALITY FACTORS USING GEOSTATISTICAL METHODS (CASE STUDY: GOLPAYEGAN PLAIN). JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2011;63(4):347-357. Available from: https://sid.ir/paper/195063/en

IEEE: Copy

M.R. HAJIHASHEMIJAZI, M. ATASHGAHI, and A.H. HAMIDIAN, “SPATIAL ESTIMATION OF GROUNDWATER QUALITY FACTORS USING GEOSTATISTICAL METHODS (CASE STUDY: GOLPAYEGAN PLAIN),” JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 63, no. 4, pp. 347–357, 2011, [Online]. Available: https://sid.ir/paper/195063/en

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