UTILIZATION OF MULTISPECTRAL SATELLITE IMAGES TO DEFINE POTENTIAL TAILINGS AREAS IN ABANDONED MINING AREAS

• Type: Article in International Conference Proceedings Book
• Date: 2025-07-29

Authors

Bárbara Fonseca (Author) FEUP; Joaquim Góis (Author) FEUP; Guerner Dias, AJ (Author) FCUP; Henrique Garcia-Pereira (Author) Other

Scientific classification

CORDIS: Technological sciences > Engineering > Geological engineering

FOS: Engineering and technology > Other engineering and technologies

Other information

Subject: UTILIZATION OF MULTISPECTRAL SATELLITE IMAGES TO DEFINE POTENTIAL TAILINGS AREAS IN ABANDONED MINING AREAS

Abstract (EN): This paper explores the utilization of satellite imagery to identify potential environmental contamination in abandoned mining areas, aiming to develop a new methodology for optimizing sampling campaigns. The proposed approach involves overlaying three WMS layers in a GIS software, followed by validation using Principal Component Analysis (PCA). The methodology was tested on the Regoufe mine in mainland Portugal. This methodology allow the identification, definition and delimitation of the abandoned mining area under study, through the use of cost free satellite imagery. The Principal Component Analysis validated the methodology implemented once allowed to corroborate the results acquired by the overlaying of the satellite images and the results obtained in the collected samples. Ultimately, this method reduced the initially designated sampling area by approximately tenfold, enhancing efficiency in identifying and characterizing abandoned mining sites. Keywords: abandoned mining áreas, geomathematics, principal component analysis, potentially toxic elements, satellite imagery.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6