Airborne And Ground-Based Electromagnetic Investigation Of The Freshwater Potential In Tsunami-Hit Areas Of Northern Sumatra

The earthquake and the tsunami event on December 26th, 2004, damaged the freshwater supply system in the coastal areas of northern Sumatra. Therefore, the German-Indonesian HELicopter Project ACEH (Siemon et al. 2007) was initiated to assist the Indonesian Government in their efforts to plan and realize a sustainable reconstruction of community infrastructure (like freshwater supply) by providing geophysical and hydrogeological data serving as a base for spatial planning. After two successful airborne geophysical surveys funded by the Federal Institute for Geosciences and Natural Resources (BGR) and conducted by the BGR airborne group on the north coast near the city of Banda Aceh and along the west coast between the towns of Calang and Meulaboh from August to October 2005, Coca Cola Foundation Indonesia (CCFI) funded an additional survey on the north-east coast around the town of Sigli (Figure 1).