Articles | Volume 5, issue 2
Geosci. Instrum. Method. Data Syst., 5, 541–550, 2016
Geosci. Instrum. Method. Data Syst., 5, 541–550, 2016

Research article 29 Nov 2016

Research article | 29 Nov 2016

GPR and IRT tests in two historical buildings in Gravina in Puglia

Loredana Matera1, Raffaele Persico1, Edoardo Geraldi1, Maria Sileo1, and Salvatore Piro2 Loredana Matera et al.
  • 1Institute for Cultural and Monumental Heritage IBAM-CNR, Headquarter in Catania, Italy
  • 2Institute of Science for Knowledge, Conservation and Use of Cultural Heritage ITABC-CNR, Rome, Italy

Abstract. This paper describes a geophysical investigation conducted into two important churches, namely the Cathedral of Santa Maria Assunta and the Church of Santa Croce, both in Gravina in Puglia (close to Bari, southern Italy). The Church of Santa Croce, now deconsecrated, lies below the cathedral. Therefore, the two churches constitute a unique building body. Moreover, below the Church of Santa Croce there are several crypts, which are only partially known. The prospecting was performed both with a pulsed commercial ground penetrating radar (GPR) system and with a prototypal reconfigurable stepped frequency system. The aim was twofold, namely to gather information about the monument and to test the prototypal system. The GPR measurements have also been integrated with an infrared thermography (IRT) investigation performed on part of the vaulted ceiling in the Church of Santa Croce, in order to confirm or deny a possible interpretation of certain GPR results.

Short summary
This paper presents the results of an investigation into a monument using ground penetrating radar and infrared thermography. The data have been gathered and processed to investigate the presence of multilevel cavities beneath the floor of the monument, and to test an innovative instrument built within the framework of a previous research project. The results show how some features of the underlying environments (partially known, partially unknown) are understood from the upper floor.