CASE STUDY: EXPLOITATION OF GROUND WATER IN SPAIN (ESA)

	Objective of the project Detection and mapping of areas affected by uplift and subsidence movements due to exploitation of aquifers in Murcia City (South-East of Spain) and surroundings. The objective of the project was to locate and quantify with precision subsidence phenomena.
Analysis and results The period of study has been: 1995-2006. Subsidence measurements have been detected up to 3 cm in Murcia City and up to 11 cm in the whole Vega Media del Segura river area. The high precision measurement of results have been confirmed and validated by in-situ measurements (extensometers).

InSAR results show up to 11 cm of annual subsidence. These measurements coincide with the results of deformation measured by extensometers.