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Study Of Seasonal Rainfall Infiltration Via Time-Lapse Surface Electrical Resistivity Tomography: Case Study Of Gamboa Area, Panama Canal Watershed, Alexis Mojica, Irving Díaz, Carlos Ho, Fred Ogden, Reinhardt Pinzón, José Fábrega, David Vega, Jan Hendrickx
Study Of Seasonal Rainfall Infiltration Via Time-Lapse Surface Electrical Resistivity Tomography: Case Study Of Gamboa Area, Panama Canal Watershed, Alexis Mojica, Irving Díaz, Carlos Ho, Fred Ogden, Reinhardt Pinzón, José Fábrega, David Vega, Jan Hendrickx
Fred L. Ogden
The present investigation was focused on the variations in rainwater infltration 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 profle 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 diference of resistivity between -20% and -100%, and between …