期刊
JOURNAL OF APPLIED GEOPHYSICS
卷 72, 期 2, 页码 107-113出版社
ELSEVIER
DOI: 10.1016/j.jappgeo.2010.07.007
关键词
Ground penetrating radar; Hydrogeological model; Donana aquifer; Wetlands
资金
- Spanish Ministry of Environment
The potential utility of ground penetrating radar (GPR) in delineating the geometry of clay layers under two watercourses of the Donana National Park (SW Spain) has been checked. The interpretation of the GPR profiles, calibrated with piezometers, shows the presence of two clay layer roughly continuous along some 2 km. The work allowed to gain insight about the watercourses relationship with groundwater. Up to now, watercourses in the area have been associated as a matter of fact to the intersection of the water table with the topography. But this work shows the existence of shallow, roughly continuous clay layers under the watercourses that may generate perched phreatic levels even if the regional water table is too deep to crop out. Thus, the GPR proved to be very helpful and suitable in supporting hydrogeological studies in wetlands. (C) 2010 Elsevier B.V. All rights reserved.
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