A GIS-based DRASTIC and GOD models for assessing alterites aquifer of three experimental watersheds in Foumban (Western-Cameroon)

Mfonka, Zakari; Ngoupayou, Jules Rémy Ndam; Ndjigui, Paul‐Désiré; Kpoumié, Amidou; Zammouri, Mounira; Ngouh, Abdou Nasser; Mouncherou, Oumar Farouk; Rakotondrabe, Felaniaina; Rasolomanana, Eddy

doi:10.1016/j.gsd.2018.06.006

Cited by 32 publications

(9 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Information and geographical points related to the transferability coefficient and alluvial thickness of the plain were prepared from existing maps. Then, by subtracting the alluvial thickness map and the water surface depth map, the saturated thickness map was obtained by using the Raster calculator function, and after dividing the saturated thickness map of the aquifer, the hydraulic conductivity map of the aquifer was obtained 30 . The resulting map was graded according to the drastic index (Fig.…”

Section: Methodsmentioning

confidence: 99%

Simulation of nitrate pollution and vulnerability of groundwater resources using MODFLOW and DRASTIC models

Eslamian,

Harooni,

Sabzevari

2023

Sci Rep

View full text Add to dashboard Cite

Groundwater assets are the foremost imperative assets of freshwater accessible to people especially in arid and semi-arid regions. For the investigation of temporal changes in groundwater nitrate pollution and the role of agriculture and other sources in the pollution of groundwater, the information on 42 drinking water wells with suitable distribution in the plain in Bouin-Daran Plain in the center of Iran was used. The results showed that the amount of hydraulic conductivity in the plain for different areas after calibration in steady state was calculated between 0.8 and 34 m/day. After calibrating the model in permanent conditions, the model was calibrated in non-permanent conditions for 2 years. The results showed that in a wide area of the region, the nitrate ion concentration has values of more than 25 mg/L. This shows that the average concentration of this ion in the region is generally high. The highest level of pollution in the aquifer of the plain is related to the southern and southeastern parts of the plain. Due to the agricultural activities with the use of large amounts of fertilizers in this plain, there is a potential for pollution in all of the places, and it requires codified and executive planning for agricultural operations as well as the use of groundwater sources. The DRASTIC vulnerability estimation method is only useful for estimating the areas that have a high potential for contamination and according to the validation tests, it has also provided a suitable estimate.

show abstract

Section: Methodsmentioning

confidence: 99%

Simulation of nitrate pollution and vulnerability of groundwater resources using MODFLOW and DRASTIC models

Eslamian,

Harooni,

Sabzevari

2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…However, it remains one of the best GISbased overlay and indexing methods, mainly used in data-limited regions that require a rapid assessment of the groundwater situation [39]. A limited number of studies address this method, such as [2,62], and [53]. The major advantage of the GOD method is that it can be applied to any type of aquifer, except for those in karst regions.…”

Section: Advantagesmentioning

confidence: 99%

DRASTIC, GOD, and SI approaches for assessing groundwater vulnerability to pollution: a review

Fannakh

Farsang

2022

Environ Sci Eur

View full text Add to dashboard Cite

Over the last three to four decades, several methods for assessing groundwater vulnerability to anthropogenic pollution have been developed. Researchers and policymakers have widely used these methods for preventing groundwater pollution through knowledge about particularly vulnerable areas. This systematic review presents different and significant methods for assessing the vulnerability of aquifers for the protection of the resource. Previous studies mentioned that formulating a single technique for assessing groundwater vulnerability is difficult; thus, different methods and techniques have been proposed. Therefore, this paper presents three methods, namely, DRASTIC, GOD, and susceptibility index (SI), which will be discussed in detail, and highlights their advantages and limitations. In doing so, the study introduces the concept of aquifer vulnerability, and further discussion will be devoted to the three methods. Lastly, the study outlines the major challenges to the assessment of aquifer vulnerability. The review concludes the importance of groundwater vulnerability and strategies for preserving its quality.

show abstract

“…It has very little or almost unknown physicochemical and bacteriological characteristics. In fact, most of the scientific researches carried out in this area and its surroundings were mostly focused on the petrology, petrography and hydrogeology aspects [7] [8] [9]. They did not take into account the quality aspect of water consumption in that zone.…”

Section: Introductionmentioning

confidence: 99%

Water Quality Assessment in the Bamoun Plateau, Western-Cameroon: Hydrogeochemical Modelling and Multivariate Statistical Analysis Approach

Mfonka¹,

Kpoumié²,

Ngouh³

et al. 2021

JWARP

View full text Add to dashboard Cite

This study focuses on the geochemical and bacteriological investigation of surface and ground water in the Bamoun plateau (Western-Cameroon). During the period from September 2013 to August 2014, 71 samples were collected from two springs, one borehole, four wells and the Nchi stream for analysis of major elements. In order to obtain the characteristics of the various species of bacteria, 7 samples were selected. The analytical method adopted for this study is the conventional hydrochemical technic and multivariate statistical analysis, coupled with the hydrogeochemical modelling. The results revealed that, water from the zone under study are acidic to basic, very weakly to weakly mineralized. Four types of water were identified: 1) CaMg-HCO 3 ; 2) CaMg-Cl-SO 4 ; 3) NaCl-SO 4 and 4) NaK-HCO 3. The major elements were all listed in the World Health Organization guidelines for drinking water quality, except for nitrates which was found at a concentration > 50 mg 3 NO − /l in the borehole F401. As for the hydrobiological aspect, the entire sample contained all the bacteriological species except for spring S301 and well P401.

show abstract

A GIS-based DRASTIC and GOD models for assessing alterites aquifer of three experimental watersheds in Foumban (Western-Cameroon)

Cited by 32 publications

References 35 publications

Simulation of nitrate pollution and vulnerability of groundwater resources using MODFLOW and DRASTIC models

Simulation of nitrate pollution and vulnerability of groundwater resources using MODFLOW and DRASTIC models

DRASTIC, GOD, and SI approaches for assessing groundwater vulnerability to pollution: a review

Water Quality Assessment in the Bamoun Plateau, Western-Cameroon: Hydrogeochemical Modelling and Multivariate Statistical Analysis Approach

Contact Info

Product

Resources

About