Use of Remote Sensing, Geophysical Techniques and Archaeological Excavations to Define the Roman Amphitheater of Torreparedones (Córdoba, Spain)

Abstract

Non-destructive techniques are widely used to explore and detect burial remains in archaeological sites. In this study, we present two sets of sensors, aerial and geophysics, that we have combined to analyze a 2 ha sector of ground in the Torreparedones Archaeological Park located in Cordoba, Spain. Aerial platforms were used in a first step to identify a Roman amphitheater located near the Roman city. To ensure greater reliability and to rule out geological causes, a geophysical survey was subsequently carried out. Magnetic gradiometer, electrical resistivity tomography (ERT), and ground-penetrating radar (GPR) methods were also used to confirm the existence of this structure, define the geometry and, to the greatest possible extent, determine the degree of preservation of this construction. The adverse conditions for data acquisition was one of the main constraints, since the area of interest was an almond plantation which conditioned geophysical profiles. In addition, due to the low dielectric and magnetic contrast between the structures and the embedding material, meticulous data processing was required. In order to obtain further evidence of this amphitheater and to corroborate the aerial images and the geophysical models, an archaeological excavation was carried out. The results confirmed the cross-validation with the predicted non-destructive models. Therefore, this work can serve as an example to be used prior to conservation actions to investigate the suburbs and landscapes near similar roman cities in Spain.

The Jabal al‐Yamh and Ḥattā Valley survey (Emirate of Dubai, UAE): GIS tools applied to archaeological survey and research

“…While remote sensing methodologies provide a good overview for prospecting archaeological sites, usual methods, such as multispectral images, near-infrared spectroscopy (NIR) (Abate & Lasaponara, 2019;Brooke & Clutterbuck, 2019) or light detection and ranging (LIDAR) (Chase et al, 2011;Monterroso-Checa, 2017), are preferred for identifying buried ancient remains. On the other hand, RGB images have been demonstrated to help identify crop marks and ancient buildings (Hanson & Oltean, 2013;Stichelbaut, 2006).…”

A Heritage Science Workflow to Preserve and Narrate a Rural Archeological Landscape Using Virtual Reality: The Cerro del Castillo of Belmez and Its Surrounding Environment (Cordoba, Spain)

“…In recent years, several archeological sites have been identified using LiDAR data from the National Aerial Orthophotography Plan of Spain (PNOA), including prehistoric settlements [23] and Roman camps [24], among others. The project researchers also used LiDAR data for the geoarcheological characterization of the site [25] and to identify large Roman construction sites [26].…”

Edificio de espectáculos en la Hispania del siglo II d. C.: un análisis sincrónico

“…Por otro lado, la similitud estructural que comparten los anfiteatros de Astigi e Italica ha dado lugar a que se plantee que el edificio astigitano pudo ser construido en época de Adriano (Carrasco y Jiménez Hernández, 2008: 43-44). Asimismo, se ha planteado la hipótesis de que el anfiteatro de Torreparedones, recientemente descubierto, pudo haber sido construido entre finales de época flavia e inicios del siglo II d. C. (Monterroso, 2017: 21;Monterroso et al, 2019). permitirse erigir anfiteatros de fábrica 11 .…”