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Climate Change 2016
October 27-29, 2016
Volume 7, Issue 9(Suppl) J Earth Sci Clim Change
ISSN: 2157-7617 JESCC, an open access journal
conferenceseries .com
October 24-26, 2016 Valencia, Spain
World Conference onClimate Change
Efficacy of managed aquifer recharge to reduce the impact of climate change on coastal aquifers
Michele Vurro, Costantino Masciopinto and Isabella Serena Liso
Consiglio Nazionale delle Ricerche, Italy
The best fit of tide-gaugemeasurements of twomonitoring stations, located along Puglia coast (Southern Italy), provided local
sea level rise (LSLR) rate of 8.8 mm/y during 2000-2014 years. This local rate matches 21st and 22nd century projections of
the rate of mean global sea level rise, which includes ocean thermal expansion, glaciers, polar caps, Greenland and Antarctica’s
ice sheets melting and by including changes in soil water storage. Under the assumption that this sea rise rate will remain
constant, an increasing of seawater intrusion will be produced into the Puglia and others Mediterranean coastal aquifers.
Model simulations have been applied to the Ostuni (Puglia) groundwater in order to quantify seawater encroachment in
fractured coastal aquifers due to LSLR. The model implemented the Ghyben-Herzberg’s equation of freshwater/saltwater sharp
interface in order to determine the amount of the decrease in groundwater discharge due to the maximum LSLR during 22nd
century. Since model results have foreseen an impressive depletion (over 16%) of groundwater discharge, MAR actions have
been tested to prevent the seawater intrusion. The study has confirmed the suitability of MAR for enhancing the integrated
water resources availability by reducing future groundwater depletions. MAR recovered 80L/s of groundwater as a new source
of water supply during summer at the Ostuni area. Therefore, MAR can be a useful measure to mitigate the impact of climate
change on coastal aquifers as a direct measure, due to reducing salt water intrusion, and as an indirect one, due to increasing
water resource.
Biography
Michele Vurro is the Head of research and is Scientific Coordinator of Integrated Water Resources Management at IRSA-CNR. He has been involved in research
on mathematical models of flow, transport and diffusion in groundwater and in unsaturated zone, groundwater artificial recharge. He is carrying out research on
impact of climate change to water resources and adaptation strategies to combat climate change condition. He has published more than 30 papers in international
peer-review journals.
Michele Vurro et al., J Earth Sci Clim Change 2016, 7:9(Suppl)