Three dimensional simulation of seawater intrusion in coastal aquifers: A case study in the Goksu Deltaic Plain

Çobaner, Murat; Yurtal, Recep; Doğan, A. Umran; Motz, Louis H.

doi:10.1016/j.jhydrol.2012.07.022

Cited by 71 publications

(42 citation statements)

References 32 publications

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“…Groundwater serves as major and natural source of water for domestic and agricultural purposes in many cities (Mondal et al 2010). However, groundwater quality in the coastal region is often under tremendous threat due to seawater intrusion (Somay and Gemici 2009;Melloul and Goldenberg 1997;Jørgensen et al 2008;Cobaner et al 2012;Werner et al 2012). In the coastal regions, freshwater-saline water interface is highly mobile depending on the difference in hydraulic head.…”

Section: Introductionmentioning

confidence: 99%

Deciphering the groundwater–saline water interaction in a complex coastal aquifer in South India using statistical and hydrochemical mixing models

Kumar

2016

Model. Earth Syst. Environ.

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Hydrogeochemical investigations were carried out in a coastal aquifer along the East coast of Cuddalore district in Tamil Nadu, Southern India, to analyse the groundwater-seawater interactions. Multiple techniques including Hydrochemical Facies Evaluation Diagram (HFE-D), principle component analysis (PCA), ionic ratios, hydrochemical ionic changes models and salinity mixing index (SMI) models were applied to refine the results and exactly understand the salinization process. EC and Ionic constituents along with the Gibbs plot showed controls of evaporation and the rock-water interaction o hydrogeochemistry, which is later proved by the bivariate plots. Major ions listed under PC1 (Na, Mg, Cl and SO 4 ) and PC2 (Ca, HCO 3 , and CO 3 ) showing the influence of seawater and carbonate dissolution processes go together with cation exchange. Definitive results, shown by HFE-D plot than the piper plot, indicate that 58% of the samples either completely fall in the seawater zone or on the mixing line. Results of the ionic changes calculation indicate that 6 wells (50%) have a positive seawater fraction in the groundwater. Analogous results were observed for the SMI values ([1) in these wells, except in sample number 3. Encouragingly, after each method the results significantly rectified. Impact of seawater mixing with fresh groundwater is found in the entire starch (perpendicular to coast) of samples in the southern end of the aquifer, and samples located in very near to the coast in the central part. Good quality groundwater in the northern end indicate that the aquifer was unaffected by the seawater mixing.

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Section: Introductionmentioning

confidence: 99%

Deciphering the groundwater–saline water interaction in a complex coastal aquifer in South India using statistical and hydrochemical mixing models

Kumar

2016

Model. Earth Syst. Environ.

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“…Numerous studies concerning numerical modelling of coastal karst aquifers have been conducted on local scales (Lambrakis and Kallergis 2001;Qahman and Larabi 2006;Pisinaras et al 2007;Giambastiani et al 2007;Rejani et al 2008;Shammas and Thunvik 2009;Candela et al 2009;El-Bihery 2009;Cobaner et al 2012;El Ayni et al 2013). Large-scale analyses have often been based on simplified GIS approaches, whereas reliable numerical modelling is relatively rare, especially for management purposes (Sutanudjaja et al 2001;Langevin 2003;Masciopinto 2006;Ranjan et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Modelling and management of a Mediterranean karstic coastal aquifer under the effects of seawater intrusion and climate change

2015

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The study and management of the groundwater resources of a large, deep, coastal, karstic aquifer represent a very complex hydrogeological problem. Here, this problem is successfully approached by using an equivalent porous continuous medium (EPCM) to represent a karstic Apulian aquifer (southern Italy). This aquifer, which is located on a peninsula and extends to hundreds of metres depth, is the sole local source of high-quality water resources. These resources are at risk due to overexploitation, climate change and seawater intrusion. The model was based on MODFLOW and SEAWAT codes. Piezometric and salinity variations from 1930 to 2060 were simulated under three past scenarios (up to 1999) and three future scenarios that consider climate change, different types of discharge, and changes in sea level and salinity. The model was validated using surveyed piezometric and salinity data. An evident piezometric drop was confirmed for the past period (until 1999); a similar dramatic drop appears to be likely in the future. The lateral intrusion and upconing effects of seawater intrusion were non-negligible in the past and will be considerable in the future. All phenomena considered here, including sea level and sea salinity, showed non-negligible effects on coastal groundwater.

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“…The mean annual rainfall is 557 mm and the mean annual pan evaporation is 570 mm [7]. The average temperature is 198C.…”

Section: General Description Of the Study Areamentioning

confidence: 99%

Trace Element Levels in the Groundwater of Mediterranean Coastal Plains – The Case of Silifke, Turkey

Yılmaz

Seçkin

Sarı

2010

CLEAN Soil Air Water

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The Silifke plain is located near the coast of the Mediterranean Sea in Turkey. The delta in the plain is a highly fertile land that supports the agriculture of more than twenty types of crop. Some trace element content of the groundwater samples taken from the existing wells in this area are analyzed using inductively coupled plasma optical emission spectrometry (ICP‐OES). The mean levels (ppm) of boron (B), barium (Ba), iron (Fe), manganese (Mn), lead (Pb), zinc (Zn), total chromium (TCr), cadmium (Cd), copper (Cu), aluminum (Al), and nickel (Ni) were obtained for the sampling points in the area for four seasons. Groundwater samples taken in the study area don't exhibit significantly elevated levels of these elements during a period of twelve months between December 2007 and November 2008. Furthermore, all of the elements exhibit values lower than 0.005 ppm, with the exception of B, Ba, and Fe. The results demonstrate that although these three elements produce the highest values, most are found to be appropriate for activities such as irrigation and human consumption in terms of trace elements.

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Three dimensional simulation of seawater intrusion in coastal aquifers: A case study in the Goksu Deltaic Plain

Cited by 71 publications

References 32 publications

Deciphering the groundwater–saline water interaction in a complex coastal aquifer in South India using statistical and hydrochemical mixing models

Deciphering the groundwater–saline water interaction in a complex coastal aquifer in South India using statistical and hydrochemical mixing models

Modelling and management of a Mediterranean karstic coastal aquifer under the effects of seawater intrusion and climate change

Trace Element Levels in the Groundwater of Mediterranean Coastal Plains – The Case of Silifke, Turkey

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