scholarly journals Assessing Impacts of Climate Change and Sea-Level Rise on Seawater Intrusion in a Coastal Aquifer

Water ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 357 ◽  
Author(s):  
Jong Chun ◽  
Changmook Lim ◽  
Daeha Kim ◽  
Jin Kim
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Seawater Intrusion ◽  
Coastal Aquifer ◽  
Impacts Of Climate Change ◽  
And Sea Level

Impacts of Climate Change and Sea Level Rise

Salt Marshes ◽  
2021 ◽  
pp. 476-481
Author(s):  
Zoe J. Hughes ◽  
Duncan M. FitzGerald ◽  
Carol A. Wilson
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Impacts Of Climate Change ◽  
And Sea Level

Impacts of Climate Change and Sea-Level Rise: A Preliminary Case Study of Mombasa, Kenya

2012 ◽  
Vol 278 ◽  
pp. 8-19 ◽  
Author(s):  
Abiy S. Kebede ◽  
Robert J. Nicholls ◽  
Susan Hanson ◽  
Mustafa Mokrech
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Impacts Of Climate Change ◽  
And Sea Level

scholarly journals Numerical Modeling of Saltwater Intrusion in the Rmel-Oulad Ogbane Coastal Aquifer (Larache, Morocco) in the Climate Change and Sea-Level Rise Context (2040)

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2167
Author(s):  
Mohamed Jalal EL Hamidi ◽  
Abdelkader Larabi ◽  
Mohamed Faouzi
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Coastal Aquifer ◽  
Fresh Groundwater ◽  
Sea Levels ◽  
Groundwater Levels ◽  
Rising Sea Levels ◽  
Management Approaches ◽  
And Sea Level

Many coastal aquifers have experienced seawater intrusion (SWI) into fresh groundwater aquifers. The principal causes of SWI include over-pumping and events such as climate change (CC) and rising sea levels. In northern Morocco, the Rmel-Oulad Ogbane coastal aquifer (ROOCA) supplies high-quality groundwater for drinking water and agriculture. This favorable situation has led to increased pumping, resulting in environmental challenges such as dropping water table and SWI. Furthermore, the climate has resulted in less recharge, with an estimated annual precipitation of 602 mm and an average temperature of 18.5 °C. The goal of this study is to determine how CC, over-pumping, and sea-level rise (SLR) affect SWI. Computational groundwater and solute transport models are used to simulate the spatial and temporal evolution of hydraulic heads and groundwater solute concentrations. The calibration is based on steady and transient groundwater levels from 1962 to 2040. SWI simulations show that the NW sector of the coastal area would be polluted, with the toe reaching 5.2 km inland with a significant salinity (15–25 g/L). To protect the fresh water in the reservoir from SWI, enhanced groundwater development and management approaches for this aquifer are required, such as artificial recharge from surface water.

Impact of over-pumping and sea level rise on seawater intrusion in Gaza aquifer (Palestine)

2015 ◽  
Vol 6 (4) ◽  
pp. 891-902 ◽  
Author(s):  
H. F. Abd-Elhamid ◽  
A. A. Javadi ◽  
K. M. Qahman
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Sea Level Rise ◽  
Sea Level ◽  
Transition Zone ◽  
Seawater Intrusion ◽  
Element Model ◽  
Piezometric Head ◽  
Speed Up ◽  
And Sea Level

Seawater intrusion is considered as one of the main processes that degrade water quality by raising salinity to levels exceeding acceptable drinking water standards. Over-abstraction is the main cause of seawater intrusion. Moreover, climate change and sea level rise speed up seawater intrusion. This paper presents the development of a coupled transient finite element model for simulation of fluid flow and solute transport in soils and its application to study seawater intrusion in Gaza aquifer. The effects of likely sea level rise due to climate change and over-pumping on seawater intrusion in Gaza aquifer are studied using three scenarios: rise in sea level due to climate change; decrease in piezometric head on the land side due to over-pumping; and a combination of sea level rise and over-pumping. The results show that a rise of 1 m in sea level has a significant effect on the position of the transition zone and can result in a further 0.5 km seawater intrusion in Gaza aquifer. However, the combination of sea level rise and over-pumping results in movement of the transition zone further inland (nearly 1.0 km). The results show that Gaza aquifer is subjected to severe seawater intrusion from the Mediterranean Sea and there is an urgent need to protect the aquifer from seawater intrusion.

scholarly journals Modeling and Mapping of coastal aquifer vulnerability to seawater intrusion using SEAWAT code and GALDIT index technique: the case of the Rmel aquifer – Larache, Morocco

2021 ◽  
Vol 298 ◽  
pp. 05002
Author(s):  
Mohamed Jalal El Hamidi ◽  
Abdelkader Larabi ◽  
Mohamed Faouzi
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Sea Level Rise ◽  
Sea Level ◽  
Seawater Intrusion ◽  
Climate Models ◽  
Groundwater Resources ◽  
Climate Projections ◽  
The North ◽  
And Sea Level

The study area of Rmel-O. Ogbane aquifer, located in the north of Morocco, currently faces major water challenges related to the sustainable management of water resources. Climate change and Sea-Level-Rise can increase the risks and costs of water resources management and impact water resources' quantity and quality. Hence, for planning and management, an integrated approach is developed for linking climate models and groundwater models to investigate future impacts of climate change on groundwater resources. Climate projections show an increase in temperature of about 0.45 °C and a reduction in precipitation of 16.7% for 2016-2050. Simulations of seawater intrusion corresponding to various combinations of groundwater extraction predicted climate change and sea-level-rise show that the area will be contaminated on the NW sector of the coastal part. The toe would reach about 5.2 km inland and intrude on high salinity (15–25g/l). Beyond these zones, the contamination of the aquifer will be limited. Moreover, these results were confirmed by the application of the GALDIT method. They reveal that the fringe littoral areas of the aquifer are the most affected by seawater intrusion, with a high risk in the north-western part of the study area.

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