Author(s)

Cassiano Antonio Bortolozo¹, Jorge Luís Porsani², Tristan Pryer³, Jorge Luis Abril Benjumea⁴, Fernando Acácio Monteiro dos Santos⁵, Marco Antonio Couto Jr.⁶, Luana Albertani Pampuch⁷, Tatiana Sussel Gonçalves Mendes⁷, Daniel Metodiev¹, Marcio Augusto Ernesto de Moraes¹, Rodolfo Moreda Mendes¹, Marcio Roberto Magalhães de Andrade¹

¹CEMADEN—National Center for Monitoring and Early Warning of Natural Disasters, General Coordination of Research and Development, São José dos Campos, Brazil.
²Geophysics Department, Institute of Astronomy, Geophysics and Atmospheric Sciences (IAG), University of São Paulo (USP), São Paulo, Brazil.
³Department of Mathematical Sciences, University of Bath, Bath, UK.
⁴Colombian Geological Service (SGC), Bogotá, Colombia.
⁵Don Luiz Institute (IDL), University of Lisboa, Lisboa, Portugal.
⁶CPRM—Brazilian Geological Survey, SUREG-BH, Belo Horizonte, Brazil.
⁷Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, Brazil.

An innovative inversion code, named “Curupira v1.0”, has been developed using Matlab to determine the vertical distribution of resistivity beneath the subsoil. The program integrates Vertical Electrical Sounding (VES), successful in shallow subsurface exploration and Time Domain Electromagnetic (TEM) techniques, better suited for deeper exploration, both of which are widely employed in geophysical exploration. These methodologies involve calculating subsurface resistivity through appropriate inversion processes. To address the ill-posed nature of inverse problems in geophysics, a joint inversion scheme combining VES and TEM data has been incorporated into Curupira v1.0. The software has been tested on both synthetic and real-world data, the latter of which was acquired from the Parana sedimentary basin which we summarise here. The results indicate that the joint inversion of VES and TEM techniques offers improved recovery of simulated models and demonstrates significant potential for hydrogeological studies.

VES, TEM, Joint Inversion, CRS—Controlled Random Search, Paraná Sedimentary Basin, Brazil

Bortolozo, C.A., Porsani, J.L., Pryer, T., Benjumea, J.L.A., dos Santos, F.A.M., Couto Jr., M.A., Pampuch, L.A., Mendes, T.S.G., Metodiev, D., de Moraes, M.A.E., Mendes, R.M. and de Andrade, M.R.M. (2023) Curupira V1.0: Joint Inversion of VES and TEM for Environmental and Mass Movements Studies. International Journal of Geosciences, 14, 1160-1176. doi: 10.4236/ijg.2023.1411059.