EVALUATION OF GEOSTATISTICAL METHODS IN GROUNDWATER QUALITY MAPS PREPARATION AND THEIR MAPPING CASE STUDY: NEYRIZ PLAIN, FARS PROVINCE

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SHABANI M.

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Journal: JOURNAL OF PHYSICAL GEOGRAPHY Year:2011 | Volume:4 | Issue:13 Page(s): 83-96

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Title

EVALUATION OF GEOSTATISTICAL METHODS IN GROUNDWATER QUALITY MAPS PREPARATION AND THEIR MAPPING CASE STUDY: NEYRIZ PLAIN, FARS PROVINCE

Author(s)

SHABANI M. | Issue Writer Certificate

Keywords

POLLUTIONQ2

WATER QUALITYQ2

ELECTRICAL CONDUCTIVITYQ2

NITRATEQ2

GEOSTATISTICS METHODSQ2

DETERMINISTIC METHODSQ2

GROUNDWATERQ2

NEYRIZ PLAINQ2

Abstract

Understanding the amount of GROUNDWATER chemical characteristics variations and its zonation plays an important role in GROUNDWATER optimum management. There are many different methods to study of GROUNDWATER chemical factors that selecting suitable method depends on aim, regional conditions and availability of data. The purpose of this research is evaluating the geostatistical methods for study of spatial analysis of salinity and NITRATE variation of GROUNDWATER in NEYRIZ PLAIN located in southeast of Fars province. For this aim, different methods of geostatistics including ordinary kriging (OK) and simple kriging (SK) as well as DETERMINISTIC METHODS such as inverse distance weights (IDW), radial basis function (RBF), local polynomial interpolation (LPI) and global polynomial interpolation (GPI) were used. The result showed that RBF method because of the highest R and the lowest RMSe is the most appropriate method for salinity (EC) variation mapping (R =0.702 and RMSe = 4082.529) and NITRATE variation (R =0.632 and RMSe =5.021) among DETERMINISTIC METHODS in the study area. Also the results revealed that simple kriging (SK) has the highest priority among kriging methods and is selected for salinity (EC) mapping with R=0.733 and RMSe =3907.53 and also selected with R=0.689 and RMSe =4.868 for NITRATE variations mapping. Finally, the results indicated that simple kriging (SK) method has higher priority than radial basis function (RBF) method and thus is selected as suitable method for salinity (EC) mapping and NITRATE variation in NEYRIZ PLAIN. So, results showed that the classification of the drinking water according to the Schoeller diagram is 5.91% as "Good", 4.27% as "acceptable", 11% as "unsuitable", 22.95 as "bad", 42.34% "temporally drinkable" and 13.53% as "undrinkable". Meanwhile the quality classes for agriculture were as follow: very good (0.44%), good (5.31%), acceptable (6.88%), doubtful (7.6%) and bad (79.77%).

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تخمین برخی پارامترهای کیفی موجود در آب زیرزمینی با استفاده از نرم افزار GS+ و روش کریجینگ (مطالعه موردی دشت زرند)

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APA: Copy

SHABANI, M.. (2011). EVALUATION OF GEOSTATISTICAL METHODS IN GROUNDWATER QUALITY MAPS PREPARATION AND THEIR MAPPING CASE STUDY: NEYRIZ PLAIN, FARS PROVINCE. JOURNAL OF PHYSICAL GEOGRAPHY, 4(13), 83-96. SID. https://sid.ir/paper/184980/en

Vancouver: Copy

SHABANI M.. EVALUATION OF GEOSTATISTICAL METHODS IN GROUNDWATER QUALITY MAPS PREPARATION AND THEIR MAPPING CASE STUDY: NEYRIZ PLAIN, FARS PROVINCE. JOURNAL OF PHYSICAL GEOGRAPHY[Internet]. 2011;4(13):83-96. Available from: https://sid.ir/paper/184980/en

IEEE: Copy

M. SHABANI, “EVALUATION OF GEOSTATISTICAL METHODS IN GROUNDWATER QUALITY MAPS PREPARATION AND THEIR MAPPING CASE STUDY: NEYRIZ PLAIN, FARS PROVINCE,” JOURNAL OF PHYSICAL GEOGRAPHY, vol. 4, no. 13, pp. 83–96, 2011, [Online]. Available: https://sid.ir/paper/184980/en

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