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Article

Integrated Geophysical and Aerial Sensing Methods for Archaeology: A Case History in the Punic Site of Villamar (Sardinia, Italy)

1
Department of Civil Engineering, Environmental Engineering and Architecture (DICAAR), University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
2
Department of History, Human and Training Sciences, University of Sassari, Viale Umberto 52, 07100 Sassari, Italy
3
Gamut S.r.l., 10128 Torino, Italy
*
Author to whom correspondence should be addressed.
Remote Sens. 2014, 6(11), 10986-11012; https://0-doi-org.brum.beds.ac.uk/10.3390/rs61110986
Received: 27 June 2014 / Revised: 22 October 2014 / Accepted: 27 October 2014 / Published: 10 November 2014
(This article belongs to the Special Issue New Perspectives of Remote Sensing for Archaeology)
In this paper, the authors present a recent integrated survey carried out on an archaeological urban site, generally free of buildings, except some temporary structures related to excavated areas where multi-chamber tombs were found. The two methods used to investigate this site were thermal infrared and ground penetrating radar (GPR). The thermography was carried out with the sensor mounted under a helium balloon simultaneously with a photographic camera. In order to have a synthetic view of the surface thermal behavior, a simplified version of the existing night thermal gradient algorithm was applied. By this approach, we have a wide extension of thermal maps due to the balloon oscillation, because we are able to compute the maps despite collecting few acquisition samples. By the integration of GPR and the thermal imaging, we can evaluate the depth of the thermal influence of possible archaeological targets, such as buried Punic tombs or walls belonging to the succeeding medieval buildings, which have been subsequently destroyed. The thermal anomalies present correspondences to the radar time slices obtained from 30 to 50 cm. Furthermore, by superimposing historical aerial pictures on the GPR and thermal imaging data, we can identify these anomalies as the foundations of the destroyed buildings. View Full-Text
Keywords: aerial remote sensing; thermography; night thermal gradient; time series analyses; thermal inertia; GPR; ground penetrating radar; archaeology; near-surface geophysics; picture filtering aerial remote sensing; thermography; night thermal gradient; time series analyses; thermal inertia; GPR; ground penetrating radar; archaeology; near-surface geophysics; picture filtering
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MDPI and ACS Style

Piga, C.; Piroddi, L.; Pompianu, E.; Ranieri, G.; Stocco, S.; Trogu, A. Integrated Geophysical and Aerial Sensing Methods for Archaeology: A Case History in the Punic Site of Villamar (Sardinia, Italy). Remote Sens. 2014, 6, 10986-11012. https://0-doi-org.brum.beds.ac.uk/10.3390/rs61110986

AMA Style

Piga C, Piroddi L, Pompianu E, Ranieri G, Stocco S, Trogu A. Integrated Geophysical and Aerial Sensing Methods for Archaeology: A Case History in the Punic Site of Villamar (Sardinia, Italy). Remote Sensing. 2014; 6(11):10986-11012. https://0-doi-org.brum.beds.ac.uk/10.3390/rs61110986

Chicago/Turabian Style

Piga, Carlo, Luca Piroddi, Elisa Pompianu, Gaetano Ranieri, Stefano Stocco, and Antonio Trogu. 2014. "Integrated Geophysical and Aerial Sensing Methods for Archaeology: A Case History in the Punic Site of Villamar (Sardinia, Italy)" Remote Sensing 6, no. 11: 10986-11012. https://0-doi-org.brum.beds.ac.uk/10.3390/rs61110986

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