GroMoPo Metadata for Paraguay Guarane Aquifer System model

With some 1.1 million km(2), the Guarani Aquifer System occupies most of the La Plata Basin in South America and represents one of the most important groundwater reservoirs worldwide with a storage volume of approx. 30,000 km(3). It belongs to Argentina, Brazil, Paraguay and Uruguay. Due to increasing water demands and growing risks for the groundwater quality, a multinational project for the protection and sustainable use of this groundwater reserve was implemented by the World Bank. Between 2003 and 2009, the project was executed by the Organization of American States. The German Federal State Geological Survey (BGR) was also involved in the overall work and provided support to Paraguay by analyzing the Guarani Aquifer System in Paraguay. A numerical model was developed to characterize groundwater flow in the Guarani Area of Paraguay and neighbouring regions in Argentina and Brazil, and is being used to quantify groundwater exchange.