TAILIEUCHUNG - COASTAL AQUIFER MANAGEMENT: monitoring, modeling, and case studies - Chapter 9

CHAPTER 9 Geographical Information Systems and Modeling of Saltwater Intrusion in the Capoterra Alluvial Plain (Sardinia, Italy) G. Barrocu, . Sciabica, L. Muscas 1. INTRODUCTION A comprehensive study of the Capoterra alluvial plain (Southern Sardinia, Italy) has been carried out by the Engineering Geology and Applied Geophysics Section of the Department of Land Engineering at Cagliari University, within the frame of the international projects MEDALUS and AVICENNE 73, funded by the European Union. The purpose of the investigation was to gain a deeper insight into saltwater intrusion in the coastal aquifer system and to numerically simulate the phenomenon [Sciabica, 1994; Barrocu et al.,. | CHAPTER 9 Geographical Information Systems and Modeling of Saltwater Intrusion in the Capoterra Alluvial Plain Sardinia Italy G. Barrocu . Sciabica L. Muscas 1. INTRODUCTION A comprehensive study of the Capoterra alluvial plain Southern Sardinia Italy has been carried out by the Engineering Geology and Applied Geophysics Section of the Department of Land Engineering at Cagliari University within the frame of the international projects MEDALUS and AVICENNE 73 funded by the European Union. The purpose of the investigation was to gain a deeper insight into saltwater intrusion in the coastal aquifer system and to numerically simulate the phenomenon Sciabica 1994 Barrocu et al. 1997 Barrocu et al. 1998 . On account of the large amount of data collected for the Capoterra alluvial plain a Geographical Information Systems GIS was set up creating an alphanumerical database together with a geographic database so as to enable integrated methods to be adopted for modeling saltwater intrusion in the coastal aquifer system. The comprehensive study consisted of the following main phases set up of a control and monitoring network of the coastal aquifer system hydrogeological and hydrogeochemical measurements at selected observation wells in the network pumping tests and artificial recharge experiments at selected observation wells or purposely built wells and piezometers definition of the hydrogeological model of the alluvial plain development of a modeling procedure for simulating saltwater intrusion phenomena in the coastal aquifer system organization of the data collected into a GIS for modeling saltwater intrusion. The main purposes of the study were 2004 by CRC Press LLC to define the hydrogeological model of the alluvial plain to determine the hydrogeological and physical-chemical parameters of the aquifer system to build an alphanumeric database to validate saltwater intrusion modeling results to apply GIS and modeling procedures as integrated methods for studying .

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