Impacts of climate change on groundwater recharge in Küçük Menderes River Basin in Western Turkey

Yağbasan, Özlem

doi:10.1080/09853111.2015.1121802

Cited by 38 publications

(14 citation statements)

References 21 publications

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“…This represents 1.56×10 6 m 3 •yr −1 •km −1 suggesting a still low "natural" SGD value. A recharge ratio of between 23 and 52% (average 35%) for karstified carbonates [Allocca et al, 2014, Arfib and Charlier, 2016, Baudement et al, 2017, Martos-Rosillo et al, 2015, Polemio, 2016, Zagana et al, 2007, and between 10 and 21% (average 16%) for detritic aquifer formations [Séraphin et al, 2016, Yagbasan, 2016, Zagana et al, 2007 were reported in the north Mediterranean area (Spain to Turkey). Given that karstic aquifers represent almost 20% of the coastal areas in Mediterranean Europe [Goldscheider et al, 2020], an average value of about 20% for the recharge ratio, therefore tenfold higher than in the southern part of the Mediterranean domain (2 to 3%), can be considered.…”

Section: Discussionmentioning

confidence: 99%

Coastal aquifer recharge and groundwater–seawater exchanges using downscaled GRACE data: case study of the Djeffara plain (Libya–Tunisia)

Gonçalvès¹,

Séraphin²,

Chekireb³

et al. 2021

Comptes Rendus. Géoscience

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The Djeffara plain, extending over Tunisia and Libya (48,000 km 2 ), experiences unsustainable exploitation of groundwater, the severity of which needs to be determined. Here, we used data from Gravity Recovery and Climate Experiment (GRACE) and Global Land Data Assimilation System (GLDAS) to assess the groundwater storage variation (∆GWS) for the period 2002-2016. ∆GWS values, downscaled over a 0.5°× 0.5°grid using pumping wells spatial distribution and rates, were introduced in a discrete set of groundwater and salt budget equations to ascertain the recharge and the coastal fluxes. An average recharge of 4.3 ± 2.7 mm•yr −1 representing 2.2 ± 1.4% of the domain-averaged annual rainfall was obtained. A saline intrusion of 147.3 × 10 6 and 46.9 × 10 6 m 3 •yr −1 was calculated for the Tripoli (Libya) and Djerba (Tunisia) areas, respectively. The overall Submarine Groundwater Discharge (SGD) of freshwater along the 450 km long Djeffara coast represents about 339.6 × 10 6 m 3 •yr −1 for the 2002-2016 period.

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Section: Discussionmentioning

confidence: 99%

Coastal aquifer recharge and groundwater–seawater exchanges using downscaled GRACE data: case study of the Djeffara plain (Libya–Tunisia)

Gonçalvès¹,

Séraphin²,

Chekireb³

et al. 2021

Comptes Rendus. Géoscience

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“…This change includes a decrease in low and moderate precipitation causing droughts over India. Precipitation affects ground water recharge and thus has a significant impact on ground water level (Yagbasan 2016). Ground water recharge has been calculated using technique described in methodology section.…”

Section: Climate Change Impact On Ground Water Levelmentioning

confidence: 99%

Examining climate change impact on the variability of ground water level: A case study of Ahmednagar district, India

et al. 2019

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This study focuses on examination of variability in the depth to water below ground level (bgl) from 1996 to 2016 in Ahmednagar district of Maharashtra, India in changing climate. Spatial variability of groundwater depth was mapped and classified as shallow, normal, deep and moderate using GIS modeling. Groundwater decline rates during successive decades were examined and critical areas with a significant fall in groundwater levels (GWL) were detected. Present study also focuses on examination of block-wise variability of GWL. Ground water level shows significant variability during 1996-2016 at confidence level 95%. The long term ground water level fluctuation indicates that water levels in major parts of the study area have declined drastically. The depth to ground water in major parts of the study area ranges between 6 and 15 m bgl except in Parner and Shrirampur blocks. Furthermore, depth to water level is >15 mbgl over Sangamner block during the drought year 2004. Present study reports a significant decadal increase of about 0.7 m in water leval decline over the study area. Groundwater depletion over the study area has been observed with decrease in groundwater recharge and increase in temperature and urbanization. Groundwater depletion shows coherent variability with temperature. Our results report a significant decrease of about 0.61 cm/year in ground water recharge as a result of decrease in precipitation and a decadal increase of about 0.1 • C in temperature over the study area. Evapotranspiration (ET) shows yearly increasing trend of about 9.6 mm over the study area. Results reported in this study highlight the importance of sustainable groundwater resource management over the study area.

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“…The mean annual precipitation calculated for the study area is 640 mm. Surface water quality class is not proper for many purposes in the region and main reason is uncontrolled industrial and agricultural discharges [7,8].…”

Section: Study Areamentioning

confidence: 99%

Environmental Determinants of Surface Water Quality Based on Environmetric Methods

Boyacıoğlu¹,

Boyacıoğlu²

2018

eer

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A multivariate statistical technique, exploratory factor analysis-FA, has been used to assess the natural and anthropogenic impacts on surface water quality in two river basins in Western part of Turkey (Büyük Menderes and Küçük Menderes River Basins). The method attempted to explain the correlations between the observations in terms of the underlying factors, which were not directly observable and to reduce a great number of the water quality variables to a smaller number of attributes, grouped in common factors. Furthermore, by using the Confirmatory Factor Analysis-CFA method, the reliability of separated factors and the dimensionality have been determined. Then the path diagram was designed to investigate the structural model. Results revealed that ionic composition and water oxygenation of waters were factors controlling overall water quality in the region. Since components of first factors were observed in higher levels in Büyük Menderes Basin, it can be concluded that this region was affected from anthropogenic activities severely, compared to the Kücük Menderes Basin. Overall results revealed that FA confirmed by CFA can be used to identify probable pollution sources of surface waters.

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Impacts of climate change on groundwater recharge in Küçük Menderes River Basin in Western Turkey

Cited by 38 publications

References 21 publications

Coastal aquifer recharge and groundwater–seawater exchanges using downscaled GRACE data: case study of the Djeffara plain (Libya–Tunisia)

Coastal aquifer recharge and groundwater–seawater exchanges using downscaled GRACE data: case study of the Djeffara plain (Libya–Tunisia)

Examining climate change impact on the variability of ground water level: A case study of Ahmednagar district, India

Environmental Determinants of Surface Water Quality Based on Environmetric Methods

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