Evaluation of the Groundwater Vulnerability to Pollution Using an Intrinsic and a Specific Method in a GIS Environment: Application to the Plain of Sidi Bouzid (Central Tunisia)

2012 ◽  
Vol 38 (7) ◽  
pp. 1815-1831 ◽  
Author(s):  
Wanissa Aydi ◽  
Salwa Saidi ◽  
Moncef Chalbaoui ◽  
Soumia Chaibi ◽  
Hamed Ben Dhia
Keyword(s):  
Groundwater Vulnerability ◽  
Specific Method ◽  
Sidi Bouzid ◽  
Central Tunisia ◽  
Gis Environment

Assessment of urban groundwater vulnerability in arid areas: Case of Sidi Bouzid aquifer (central Tunisia)

2020 ◽  
Vol 168 ◽  
pp. 103849
Author(s):  
Gammoudi Safa ◽  
Chkir Najiba ◽  
Boughattas Nour El Houda ◽  
Hamdi Monji ◽  
Arraouadi Soumaya ◽  
...  
Keyword(s):  
Urban Groundwater ◽  
Groundwater Vulnerability ◽  
Arid Areas ◽  
Sidi Bouzid ◽  
Central Tunisia

scholarly journals Geophysical Contribution in the Characterization of Deep Water Tables Geometry (Sidi Bouzid, Central Tunisia)

2015 ◽  
Vol 2015 ◽  
pp. 1-16 ◽  
Author(s):  
D. Khazri ◽  
H. Gabtni
Keyword(s):  
Deep Water ◽  
Upper Cretaceous ◽  
Geophysical Data ◽  
Geometrical Analysis ◽  
Groundwater Exploitation ◽  
Sidi Bouzid ◽  
Central Tunisia ◽  
Water Tables ◽  
Hydrogeological Data

Geophysical data combined with geological and hydrogeological data were analyzed to characterize the geometry of Oued El Hajel and Ouled Asker deep water tables (Sidi Bouzid). The obtained results allowed refining the geostructural schema by highlighting the individualization of the NE-SW underground convexity of Ouled Asker and the anticline of axis Es Souda-Hmaeima and Ezaouia on either sides of two hydrogeological thresholds. The geometrical analysis determined the spatial extension of Ouled Asker and Oued El Hajel subbasins. The seismic cartography of semideep and deep reservoirs (Oligo-Miocene; Eocene and upper Cretaceous) associated with the main subbasins contributed to proposing hydrogeological prospect zones for a rationalized groundwater exploitation.

scholarly journals A GIS-based Modified DRASTIC (ANP) method for assessment of groundwater vulnerability: a case study of Nagpur city, India

2015 ◽  
Vol 52 (2) ◽  
pp. 121-135 ◽  
Author(s):  
Sahajpreet Kaur Garewal ◽  
Avinash D. Vasudeo ◽  
Vishrut S. Landge ◽  
Aniruddha D. Ghare
Keyword(s):  
Nitrate Concentration ◽  
Groundwater Resources ◽  
Groundwater Vulnerability ◽  
Geographical Information ◽  
Network Process ◽  
Groundwater Vulnerability Assessment ◽  
Modified Drastic ◽  
Gis Environment ◽  
Sensitive Parameters ◽  
Vulnerable Zones

Quality of groundwater is as important as quantity. For effective planning and management of groundwater resources, groundwater vulnerability assessment is most significant. The objective of the present study was to evaluate the groundwater vulnerable zones of Nagpur city, using Modified DRASTIC methods within a Geographical Information System (GIS) environment. DRASTIC method has been modified using land use/land cover parameter; weight of the parameters was modified using Analytical Hierarchy Process (AHP) and Analytical Network Process (ANP). Sensitivity analysis has been carried out to consider the most sensitive parameters. A new approach ANP was applied on DRASTIC for the first time to modify the weight of the parameters. Groundwater vulnerable zones obtained from the DRASTIC, Modified DRASTIC, Modified DRASTIC AHP and Modified DRASTIC ANP were compared and validated using field data of nitrate concentration. Results obtained from the Modified DRASTIC ANP are found to be well correlated with the nitrate concentration of the city and it is appropriate for assessment of groundwater vulnerable zones of Nagpur city. From this study it was found that the necessary remedial measures should be taken in the highly vulnerable zones of Nagpur city for further prevention of groundwater pollution.

scholarly journals Evaluation of Groundwater Vulnerability to Contamination in Coimbatore District

2019 ◽  
pp. 1-17
Author(s):  
P. Meenakshi ◽  
A. Ganesh
Keyword(s):  
Sandy Loam ◽  
Low Cost ◽  
Groundwater Resources ◽  
Groundwater Vulnerability ◽  
Shallow Water Table ◽  
Point Of Use ◽  
Coimbatore District ◽  
The World ◽  
Gis Environment ◽  
Alternate Source

Groundwater usage in the world is widely reported to increase because of the uncertainties attached with the availability of surface water. Groundwater resources are looked upon as the alternate source of freshwater on account of its widespread and continuous availability in proximity to the point of use or living place, less vulnerability to contamination and low cost of extraction in both urban and rural area of developed and developing countries of the world. Such a scenario has led to the degradation and depletion of groundwater resources in many parts of the world. The study area, Coimbatore district, is a rapidly urbanizing and industrializing city in the southern part of India which relies upon the groundwater resources for meeting the agricultural, industrial and domestic requirements. In view of this evaluation of groundwater resources and an understanding of the vulnerability of the aquifer to contamination become essential for the effective management of groundwater resources. The vulnerability of the groundwater to contamination is assessed using DRASTIC and Pesticide DRASTIC index in the GIS environment. The study showed that the high vulnerability areas are characterized by shallow water table of less than 4 m, gentle topography, sandy loam soils, thinner vadose zone and underlying geologic formations with well-developed fissures and fractures.

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