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dc.contributor.authorMojica, Alexis
dc.contributor.authorDíaz, Irving
dc.contributor.authorHo, Carlos A.
dc.contributor.authorOgden, Fred
dc.contributor.authorPinzón, Reinhardt
dc.contributor.authorFábrega, José
dc.contributor.authorVega, David
dc.contributor.authorHendrickx, Jan
dc.date.accessioned2017-08-09T19:05:25Z
dc.date.accessioned2017-08-09T19:05:25Z
dc.date.available2017-08-09T19:05:25Z
dc.date.available2017-08-09T19:05:25Z
dc.date.issued2013-12-18
dc.date.issued2013-12-18
dc.identifier.urihttp://ridda2.utp.ac.pa/handle/123456789/2530
dc.identifier.urihttp://ridda2.utp.ac.pa/handle/123456789/2530
dc.descriptionThe present investigation was focused on the variations in rainwater infiltration experienced by soils of Gamboa zone (Panama Canal Watershed) during various seasons of the year, employing a time-lapse analysis of electrical resistivity tomography (ERT). In 2009, a total of 3 geoelectrical tests were undertaken during the dry, transition and rainy seasons across a profile 47 m in length, strategically distributed on site. The results obtained in this study showed strong variations in calculated resistivity between these seasons, taking the dry season as a reference with decreases and increases of percent difference of resistivity between −20% and −100%, and between 50% and 100%, respectively. These decreases, when displayed through a sequence of time-lapse images, reveal a superficial extension of the water content variations along the entire profile, as well as strong inversion artifacts showing false increases of calculated electrical resistivity. Decreases are the product of the rainfall increase obtained in this type of tropical environment; permanent conductive anomalies in 3 tests are associated with the streams close to the study site. The results of this work were compared with a simulation resulting from a series of bidimensional models applied to the 3 studies evaluated: dry, transition and rainy seasons.en_US
dc.description.abstractThe present investigation was focused on the variations in rainwater infiltration experienced by soils of Gamboa zone (Panama Canal Watershed) during various seasons of the year, employing a time-lapse analysis of electrical resistivity tomography (ERT). In 2009, a total of 3 geoelectrical tests were undertaken during the dry, transition and rainy seasons across a profile 47 m in length, strategically distributed on site. The results obtained in this study showed strong variations in calculated resistivity between these seasons, taking the dry season as a reference with decreases and increases of percent difference of resistivity between −20% and −100%, and between 50% and 100%, respectively. These decreases, when displayed through a sequence of time-lapse images, reveal a superficial extension of the water content variations along the entire profile, as well as strong inversion artifacts showing false increases of calculated electrical resistivity. Decreases are the product of the rainfall increase obtained in this type of tropical environment; permanent conductive anomalies in 3 tests are associated with the streams close to the study site. The results of this work were compared with a simulation resulting from a series of bidimensional models applied to the 3 studies evaluated: dry, transition and rainy seasons.en_US
dc.languageeng
dc.language.isoengen_US
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectapparent resistivityen_US
dc.subjectERT, rainfallen_US
dc.subjecttime-lapse analysisen_US
dc.subjectinversion artifacten_US
dc.subjectGamboaen_US
dc.subjectmodelingen_US
dc.subjectapparent resistivity
dc.subjectERT, rainfall
dc.subjecttime-lapse analysis
dc.subjectinversion artifact
dc.subjectGamboa
dc.subjectmodeling
dc.titleStudy of Seasonal Rainfall Infiltration Via Time-Lapse Surface Electrical Resistivity Tomography: Case Study of Gamboa Area, Panama Canal Watersheden_US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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