| Hauptseite > Publikationsdatenbank > Statusanalyse von Meerwasserintrusionen und Grundwasserhaushaltsmodellierung des oberen Küstenaquifers in Agadir, MarokkoStatusanalysis and groundwater storage model of the upper coastal aquifer in Agadir, Morocco |
| Journal Article | FZJ-2015-02734 |
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2015
Springer
Berlin
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Please use a persistent id in citations: doi:10.1007/s00767-014-0280-6
Abstract: In Agadir, a coastal town situated in the semi-arid south-western part of Morocco, irrigated agriculture and tourism are the primary economic activities. Both sectors require high volumes of fresh water. Over the last few decades, this constantly increasing demand has resulted in a significant drawdown of the water table, accompanied by seawater intrusion leading to a decrease in water quality. A groundwater storage model has verified the extensive drawdown. Positive terms in the flow balance equation are represented by groundwater recharge from bankfiltration, and by irrigation return flow. The negative terms are dominated by groundwater removal for irrigation. A sensitivity analysis reveals parameters which require further investigation. A spatially and temporally variable seawater intrusion front was identified using specific ion ratios, chloride concentrations and groundwater salinity. The intrusion front extends roughly from the northwest to the southeast, following the coast. Compared to 2005, the intrusion front had advanced further inland by 2010. In 2011 and 2012, the effects of seawater intrusion have tended to diminish.
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