| Title | Efficacy of managed aquifer recharge to reduce the impact of climate change on coastal aquifers |
| Abstract | The best fit of tide-gauge measurements of two monitoring 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 80 L/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. |
| Source | World Conference on Climate Change, Valencia,, 24-26 october 2016Journal of Earth Science & Climatic Change 7:9, pp. 109–109 |
| Keywords | MARgroundwaterclimate change |
| Journal | Journal of Earth Science & Climatic Change |
| Editor | OMICS International, , Stati Uniti d'America |
| Year | 2016 |
| Type | Abstract in atti di convegno |
| DOI | 10.4172/2157-7617.C1.027 |
| Authors | Michele Vurro, Costantino Masciopinto and Isabella Serena Liso |
| Text | 360055 2016 10.4172/2157 7617.C1.027 MAR groundwater climate 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, Istituto di Ricerca Sulle Acque, Sede Secondaria di Bari Published version 7 9 World Conference on Climate Change Valencia, 24 26 october 2016 Internazionale Contributo The best fit of tide gauge measurements of two monitoring 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 80 L/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. Abstract in atti di convegno OMICS International 2157 7617 Journal of Earth Science Climatic Change Journal of Earth Science Climatic Change isabellaserenaliso LISO ISABELLA SERENA michele.vurro VURRO MICHELE costantino.masciopinto MASCIOPINTO COSTANTINO |
