Evaluation of the potential of InSAR time series to study the spatio-temporal evolution of piezometric levels in the Madrid aquifer

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Title: Evaluation of the potential of InSAR time series to study the spatio-temporal evolution of piezometric levels in the Madrid aquifer
Authors: Béjar Pizarro, Marta | Ezquerro Martín, Pablo | Herrera García, Gerardo | Tomás, Roberto | Guardiola-Albert, Carolina | Ruiz Hernández, José María | Marchamalo Sacristán, Miguel | Martínez Marín, Rubén
Research Group/s: Ingeniería del Terreno y sus Estructuras (InTerEs)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: InSAR time series | Spatio-temporal evolution | Piezometric levels | Madrid aquifer
Knowledge Area: Ingeniería del Terreno
Issue Date: 12-Nov-2015
Publisher: Copernicus Publications
Citation: Béjar-Pizarro, M., Ezquerro Martín, P., Herrera, G., Tomás, R., Guardiola-Albert, C., Ruiz Hernández, J. M., Marchamalo Sacristán, M., and Martínez Marín, R.: Evaluation of the potential of InSAR time series to study the spatio-temporal evolution of piezometric levels in the Madrid aquifer, Proc. IAHS, 372, 29-32, doi:10.5194/piahs-372-29-2015, 2015
Abstract: The Tertiary detritic aquifer of Madrid (TDAM), with an average thickness of 1500 m and a heterogeneous, anisotropic structure, supplies water to Madrid, the most populated city of Spain (3.2 million inhabitants in the metropolitan area). Besides its complex structure, a previous work focused in the north-northwest of Madrid city showed that the aquifer behaves quasi elastically trough extraction/recovery cycles and ground uplifting during recovery periods compensates most of the ground subsidence measured during previous extraction periods (Ezquerro et al., 2014). Therefore, the relationship between ground deformation and groundwater level through time can be simulated using simple elastic models. In this work, we model the temporal evolution of the piezometric level in 19 wells of the TDAM in the period 1997–2010. Using InSAR and piezometric time series spanning the studied period, we first estimate the elastic storage coefficient (Ske) for every well. Both, the Ske of each well and the average Ske of all wells, are used to predict hydraulic heads at the different well locations during the study period and compared against the measured hydraulic heads, leading to very similar errors when using the Ske of each well and the average Ske of all wells: 14 and 16 % on average respectively. This result suggests that an average Ske can be used to estimate piezometric level variations in all the points where ground deformation has been measured by InSAR, thus allowing production of piezometric level maps for the different extraction/recovery cycles in the TDAM.
Sponsor: This work is supported by the Spanish Ministry of Economy and Competitiveness and EU FEDER funds under projects TEC2011-28201-C02-02, TIN2014-55413-C2-2-P and ESP2013-47780-C2-2-R, by the Ministry of Education, Culture and Sport trough the project PRX14/00100 and by the project 15224/PI/10 from the Regional Agency of Science and Technology in Murcia.
URI: http://hdl.handle.net/10045/51666
ISSN: 2199-899X
DOI: 10.5194/piahs-372-29-2015
Language: eng
Type: info:eu-repo/semantics/article
Rights: Published by Copernicus Publications on behalf of the International Association of Hydrological Sciences. © Author(s) 2015. CC Attribution 3.0 License
Peer Review: si
Publisher version: http://dx.doi.org/10.5194/piahs-372-29-2015
Appears in Collections:INV - INTERES - Artículos de Revistas

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