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| Article Name : | | | ASSESSMENT OF GROUNDWATER QUALITY OF AL THIRTHAR VALLEY BASIN IN IRAQ USING GIS AND REMOTE SENSING TECHNIQUES | | Author Name : | | | Ahmed Khames Hammadi , H.Nagaraj | | Publisher : | | | Ashok Yakkaldevi | | Article Series No. : | | | ROR-935 | | Article : | |  | Author Profile | | Abstract : | | | The area of the study lies between latitudinal degrees 34° 20´ 47 ?– 36° 30´ 32 ? north and longitudinal degrees 41° 35´ 12 ?– 43° 26´ 50 ?east. The area includes the northwest parts of Iraq and the northwest parts of the Plain. The area is surrounded by Sinjar Mountain, Kolat Mountain, Zuhair Mountain, and Shaikh Ibrahim Mountain from the north; it is a series of hills which mark the border line of the water of Thirthar valley basin and Tigris. While the Eastern borders are the borders of the Tigris basin, from the south the area is surrounded by Euphrates and from the west is surrounded by the valleys of Ajeej, Ashkar and Sumbula. The study area is about 24138.259 square kms. The study has been conducted to prepare a map of groundwater quality zones of al Thirthar valley. The study uses secondary data, collected from different and relevant sources. Inverse distance weighted method of the Geographical Information Systems is used to prepare the distribution map of chemical. The results of study show that the quality of groundwater varies both spatially and temporally. The results also show that the area extent of good and moderate groundwater zones decreases while poor and very poor zone areas increase. < | | Keywords : | | - Geographical Information Systems (GIS)
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