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Self-potential method applied in environmental investigation: acquisition and data inversion

Grant number: 07/05829-2
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): June 01, 2008
Effective date (End): September 30, 2011
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geophysics
Principal Investigator:Carlos Alberto Mendonça
Grantee:Sergio Junior da Silva Fachin
Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The objective of this project is to obtain self-potential data to evaluate its association with biogeochemical activities taking place in old landfill and oil disposal sites. Field measurements of the Self-Potential (SP) signal will be interpreted by using inversion methods intending to map its causative current sources. To interpret SP measurements with this inversion technique, resistivity measurements will be achieved to identify the background geoelectrical model in both sites. The values of the current source will be used to quantify the biogeochemical activity associated with the site contamination. SP and resistivity measurements will be achieved by using equipments already available at the IAG/USP. Tests sites are located at outskirts of the city of Ribeirão Preto, São Paulo state, Brazil. As a result, this project will contribute to test a new strategy of acquisition and SP data interpretation applied to environmental problems.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FACHIN, SERGIO J. S.; ABREU, EDUARDO L.; MENDONCA, CARLOS A.; REVIL, ANDRE; NOVAES, GUILHERME C.; VASCONCELOS, SUZAN S.. Self-potential signals from an analog biogeobattery mode. GEOPHYSICS, v. 77, n. 4, p. EN29-EN37, . (09/16948-8, 07/05829-2)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
FACHIN, Sergio Junior da Silva. Self-potential signals in environmental investigations: factors that condition the amplitude of a anomaly. 2012. Doctoral Thesis - Universidade de São Paulo (USP). Instituto Astronômico e Geofísico (IAG/SBD) São Paulo.

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