Evaluation of DInSAR technique in Carajás with TerraSAR-X data

• Grant number: 11/23068-4
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: January 01, 2012
• End date: May 31, 2014
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geology
• Agreement: Vale-FAPEMIG-FAPESPA
• Principal Investigator: Waldir Renato Paradella
• Grantee: Marcos Eduardo Hartwig
• Host Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia e Inovação (Brasil). São José dos Campos , SP, Brazil
• Company: Ministério da Ciência, Tecnologia e Inovação (Brasil). Instituto Nacional de Pesquisas Espaciais (INPE)

Abstract

Nowadays, large-scale open-pit mining activities extend very deep in the ground aiming at improving the economic gain in the ore exploitation. As a consequence, there is an increase in the overall instability risk in the enterprise. The main advantage of the conventional monitoring techniques used for the assessment of rock slope instabilities is the high accuracy of measurements. However, the major disadvantage is the high cost to cover a large area. In this sense, differential interferometry with synthetic aperture radar (DInSAR), which uses the phase information from images acquired at distinct time, allows a synoptic view of distribution and state of the ground deformation. The largest open pit iron mine in operation in Brazil is N4, fully owned by the Vale S.A Company, which has presented an historical records of instabilities, particularly in the N4SE sector of the pit. Thus, the main objective of this research is the analysis of the potential of TerraSAR-X Stripmap mode images in the detection and monitoring of surface deformation in the whole area of the mine. The investigation is part an approved project in the FAPESP-Vale Research Announcement Opportunity (FAPESP process 2010/51267-9). (AU)

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)

HARTWIG, MARCOS EDUARDO. Detection of mine slope motions in Brazil as revealed by satellite radar interferograms. Bulletin of Engineering Geology and the Environment, v. 75, n. 2, p. 605-621, MAY 2016. (11/23068-4)

HARTWIG, MARCOS E.; PARADELLA, WALDIR R.; MURA, JOSE C.. Detection and Monitoring of Surface Motions in Active Open Pit Iron Mine in the Amazon Region, Using Persistent Scatterer Interferometry with TerraSAR-X Satellite Data. REMOTE SENSING, v. 5, n. 9, p. 4719-4734, SEP 2013. (11/23068-4)