Evaluation of the effect of water management interventions on water level of Gaza coastal aquifer

Abualtayef, Mazen; Rahman, Ghada Abdel; Snounu, Ismael; Qahman, Khalid; Sirhan, Hasan; Seif, Ahmed Khaled

doi:10.1007/s12517-017-3329-x

Cited by 10 publications

(3 citation statements)

References 10 publications

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“…Successively, doubling the quantities of unconventional water resources after the year 2030 as described in scenario (III) will cease the expected drop in the groundwater level in comparison with scenario (I) by 47% in the critical area of southern governorates of the Gaza Strip. In comparison with the results of the numerical model that was calibrated and run by Abualtayef et al (2017) using the Modflow platform on similar water interventions but with slightly different assumptions, the groundwater condition under the existing practices scenario (II) refers to a depression that will reach À24 m MSL by 2040 in the southern area of the Gaza Strip and shows a change of þ4 m compared with scenario (I). However, under similar conditions of scenario (III), the restoration in the groundwater will be by þ10 m and the water table level will be À18 m MSL by 2040.…”

Section: Resultsmentioning

confidence: 99%

“…The aquifer of Nubian shows a critical declining spot that reaches about 60 m (Gleeson et al 2010). Moreover, the coastal aquifer in the Eastern Mediterranean region of MENA recorded a serious drop in the water table below MSL reaches more than 24 m (Abualtayef et al 2017). Accordingly, integrating the unconventional water resources of seawater desalination, wastewater reuse, and stormwater harvesting into the water cycle is considered a promising alternative to cope with the unsustainable exploitation in the groundwater resources and to remediate the press of drought on the hydrological cycle of the water resources (Alqahtani et al 2021;Golovina & Grebneva 2021).…”

Section: Introductionmentioning

confidence: 99%

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Effect of unconventional water resources interventions on the management of Gaza coastal aquifer in Palestine

2021

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The non-conventional water resources of seawater desalination, wastewater treatment, and stormwater harvesting are promising water resources to enhance the water supply and to cope with the groundwater depletion of the Gaza Coastal Aquifer (GCA). In total, the current daily operation of the short-term low-volume (STLV) seawater desalination plants produces 36,000 m3 and on the large-scale perspective, the seawater desalination capacity is planned to lift from 150,000 to 300,000 m3 per day by the years 2025 and 2035, respectively. The wastewater treatment and reuse activities are processed through three wastewater treatment plants with a total daily capacity of 130,000 m3 which is proposed to be lifted to a capacity of 235,000 m3 by the beginning of 2025. The stormwater collecting and harvesting supply the water sector by about 550–820 cubic meters per day. The proposed stochastic and artificial intelligence model that was developed in this study to simulate the interactive conditions between the groundwater and the water intervention plan show proper performance in terms of (r) = 0.95–0.99 and the root mean square error (RMSE) = 0.09–0.21. The model outputs reveal that the annual groundwater abstractions will reach 192 million cubic meters by 2040 with an annual increasing rate of +3%. By applying the model, the optimum utilizing of the unconventional water resources contributes positively to the recovery of the GCA which is experiencing a decline hot spot in the water level reaches to −19 m below mean sea level (MSL) and is expected to drop to −28 m MSL by 2040. The impact of unconventional water resources interventions was investigated by simulating the water table trend using stochastic models and artificial neural networks (ANNs) through three scenarios. The first scenario which addresses the non-intervention status indicates that the groundwater table will decline by −1.5% in the northern governorates and by −51% in the southern governorates of the Gaza Strip within 2020–2040. The second scenario demonstrates the impact of the existing water interventions which reveals an interim recovery in the groundwater balance until 2025 where the water consumption tends to increase rapidly. The third scenario illustrates the impact of applying the full water management intervention plan where the depression cone in the groundwater level will be restored by about +10 m.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of unconventional water resources interventions on the management of Gaza coastal aquifer in Palestine

2021

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“…−1 from rainfall (main source), arti cial recharge ponds, agriculture return ow and wastewater leakage (PWA 2013)(Abualtayef et al, 2017).Around 70 to 80% of the domestic wastewater generated in the Gaza Strip is discharged without treatment into the environment(Baalousha, 2008), in additional the total volume produced by wastewater plants is about 41 MCM yr −1 in which about 8 MCM yr −1 was treated and 33 MCM yr −1 disposed to the Mediterranean Sea (PWA, 2012). In 2015, this volume was estimated to 48.54 MCM (ARIJ, 2015c; PCBS, 2013c, 2015c).Groundwater is the main water supply in GS by 95%, this water is contaminate by SWI(Qahman and Larabi 2006).…”

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confidence: 99%

Environmental coastal management for groundwater resources using different aquifer bed slopes considering sea level rise risk

Abd‐Elaty

Polemio

2022

Preprint

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Todays, coastal groundwater management is a challenging research topic due the relevance of these water resources and the huge suffered risks due to the global change in the coastal areas. The geometrical features of coastal aquifers play a control role on salt water intrusion (SWI). Seawater level rise (SLR), groundwater over pumping and aquifer recharge reduction promoting SWI. All these key factors are considered are considered with two different numerical approaches defining schematic management criteria. The former approach adopts the well-known Henry's problem; the latter is based on the real study case of the Gaza aquifer (Palestine). Different aquifer bed slopes, hydraulic and physical methods, including physical subsurface barriers, earth fill, check dam, abstraction, and natural or artificial recharge are considered together with SLR, recharge reduction, and over pumping. The different scenarios are compared in terms of position of saltwater intrusion interface, measured as distance from the coastline at the aquifer bottom using the numerical code SEAWAT. Useful comparing tables and considerations are defined with the purpose to guide the preliminary selections of new management solutions for reducing the effect of the global change on coastal groundwater resources around the coastal world. The land side bed slope cases show more SWI than sea side and horizontal bed slopes. Cut-off walls and check dams are effective technique to manage SWI in horizontal bed aquifers slopes more than other slopes, also the subsurface dams, earth fill and recharge of freshwater are good methods to control the SWI in land bed slopes while abstraction of brackish water and combine of freshwater recharge with brackish water abstraction are better to mitigate of SWI in sea side slopes.

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Assessment and Management of Seawater Intrusion in Gaza Aquifer Due to Over Pumping and Sea Level Rise

Abd-Elhamid

Zeleňáková

Qahman³

2023

Water Science and Technology Library

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Evaluation of the effect of water management interventions on water level of Gaza coastal aquifer

Cited by 10 publications

References 10 publications

Effect of unconventional water resources interventions on the management of Gaza coastal aquifer in Palestine

Effect of unconventional water resources interventions on the management of Gaza coastal aquifer in Palestine

Environmental coastal management for groundwater resources using different aquifer bed slopes considering sea level rise risk

Assessment and Management of Seawater Intrusion in Gaza Aquifer Due to Over Pumping and Sea Level Rise

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