We carried out an extensive waterborne GPR survey consisting of 50 profiles with a total length of nearly 37 km on the morainic lake of Candia northerly Turin (Italy). Our aim was to test the capability of GPR to estimate the bathymetry, the water volume and the sediment type. We enhanced and controlled the GPR data processing and interpretation with bathymetry acquired with an acoustic echo sounder and measured conductivity and temperature profile of the water column with a multiparametric probe. We also analyzed the diffraction hyperbola that originated within the sediments in order to estimate the velocity and relative permittivity. With the permittivity and dielectric mixing rules, we estimated the porosity of the sediments above the diffracting objects and drew a map of the bottom lake porosity.
Case study: A GPR survey on a morainic lake in northern Italy for bathymetry, water volume and sediment characterization / Sambuelli, Luigi; Bava, S.. - In: JOURNAL OF APPLIED GEOPHYSICS. - ISSN 0926-9851. - ELETTRONICO. - 81:(2012), pp. 48-56. [10.1016/j.jappgeo.2011.09.016]
Titolo: | Case study: A GPR survey on a morainic lake in northern Italy for bathymetry, water volume and sediment characterization | |
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Data di pubblicazione: | 2012 | |
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Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.jappgeo.2011.09.016 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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2012-SAMBUELLI BAVA candia gpr JAG 81 48-56.pdf | 2. Post-print / Author's Accepted Manuscript | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia | |
Sambuelli-Bava_all_REV_CA.pdf | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11583/2495492