Application of geospatial modelling technique in delineation of fluoride contamination zones within Dwarka Basin, Birbhum, India
Dwarka River Basin is one of the fluoride affected river basin in Birbhum, West Bengal. In the present research work, various controlling factors for fluoride contamination in groundwater i.e., geology, aquifer type, groundwater table, soil, rainfall, geomorphology, drainage density, land use land c...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-09-01
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| Series: | Geoscience Frontiers |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674987116302031 |
| _version_ | 1797728792221843456 |
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| author | Raju Thapa Srimanta Gupta D.V. Reddy |
| author_facet | Raju Thapa Srimanta Gupta D.V. Reddy |
| author_sort | Raju Thapa |
| collection | DOAJ |
| description | Dwarka River Basin is one of the fluoride affected river basin in Birbhum, West Bengal. In the present research work, various controlling factors for fluoride contamination in groundwater i.e., geology, aquifer type, groundwater table, soil, rainfall, geomorphology, drainage density, land use land cover, lineament and fault density, slope and elevation were considered to delineate the potential fluoride contamination zones within Dwarka River Basin in Birbhum. Assigning weights and ranks to various inputs factor class and their sub-class respectively was carried out on the basis of knowledge driven method. Weighted overlay analysis was carried out to generate the final potential fluoride contamination zones which are classified into two broad classes i.e., ‘high’ and ‘low’, and it is observed that major portion of the study area falls under low fluoride contamination category encompassing 88.61% of the total area which accounts for 759.48 km2 and high fluoride contaminated region accounts for 11.40% of the total study area encompassing an area of about 97.67 km2. Majority of high fluoride areas fall along the flood plain of Dwarka River Basin. Finally, for validation 197 reported points within Dwarka having fluoride in underground water are overlaid and an overall accuracy of 92.15% is observed. An accuracy of 83.21% and 84.24% is obtained for success and prediction rate curve respectively. |
| first_indexed | 2024-03-12T11:19:13Z |
| format | Article |
| id | doaj.art-e5b434730cdd411d9f17c6c857c8dad3 |
| institution | Directory Open Access Journal |
| issn | 1674-9871 |
| language | English |
| last_indexed | 2024-03-12T11:19:13Z |
| publishDate | 2017-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Geoscience Frontiers |
| spelling | doaj.art-e5b434730cdd411d9f17c6c857c8dad32023-09-02T01:32:20ZengElsevierGeoscience Frontiers1674-98712017-09-01851105111410.1016/j.gsf.2016.11.006Application of geospatial modelling technique in delineation of fluoride contamination zones within Dwarka Basin, Birbhum, IndiaRaju Thapa0Srimanta Gupta1D.V. Reddy2Department of Environmental Science, The University of Burdwan, Burdwan, 713104, West Bengal, IndiaDepartment of Environmental Science, The University of Burdwan, Burdwan, 713104, West Bengal, IndiaCSIR–National Geophysical Research Institute, Hyderabad, 500007, Telangana, IndiaDwarka River Basin is one of the fluoride affected river basin in Birbhum, West Bengal. In the present research work, various controlling factors for fluoride contamination in groundwater i.e., geology, aquifer type, groundwater table, soil, rainfall, geomorphology, drainage density, land use land cover, lineament and fault density, slope and elevation were considered to delineate the potential fluoride contamination zones within Dwarka River Basin in Birbhum. Assigning weights and ranks to various inputs factor class and their sub-class respectively was carried out on the basis of knowledge driven method. Weighted overlay analysis was carried out to generate the final potential fluoride contamination zones which are classified into two broad classes i.e., ‘high’ and ‘low’, and it is observed that major portion of the study area falls under low fluoride contamination category encompassing 88.61% of the total area which accounts for 759.48 km2 and high fluoride contaminated region accounts for 11.40% of the total study area encompassing an area of about 97.67 km2. Majority of high fluoride areas fall along the flood plain of Dwarka River Basin. Finally, for validation 197 reported points within Dwarka having fluoride in underground water are overlaid and an overall accuracy of 92.15% is observed. An accuracy of 83.21% and 84.24% is obtained for success and prediction rate curve respectively.http://www.sciencedirect.com/science/article/pii/S1674987116302031FluorideGroundwaterWeighted overlay methodPotential fluoride contamination zoneDwarka BasinIndia |
| spellingShingle | Raju Thapa Srimanta Gupta D.V. Reddy Application of geospatial modelling technique in delineation of fluoride contamination zones within Dwarka Basin, Birbhum, India Geoscience Frontiers Fluoride Groundwater Weighted overlay method Potential fluoride contamination zone Dwarka Basin India |
| title | Application of geospatial modelling technique in delineation of fluoride contamination zones within Dwarka Basin, Birbhum, India |
| title_full | Application of geospatial modelling technique in delineation of fluoride contamination zones within Dwarka Basin, Birbhum, India |
| title_fullStr | Application of geospatial modelling technique in delineation of fluoride contamination zones within Dwarka Basin, Birbhum, India |
| title_full_unstemmed | Application of geospatial modelling technique in delineation of fluoride contamination zones within Dwarka Basin, Birbhum, India |
| title_short | Application of geospatial modelling technique in delineation of fluoride contamination zones within Dwarka Basin, Birbhum, India |
| title_sort | application of geospatial modelling technique in delineation of fluoride contamination zones within dwarka basin birbhum india |
| topic | Fluoride Groundwater Weighted overlay method Potential fluoride contamination zone Dwarka Basin India |
| url | http://www.sciencedirect.com/science/article/pii/S1674987116302031 |
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