COMBINED USE OF GROUND-BASED SYSTEMS FOR CULTURAL HERITAGE CONSERVATION MONITORING

Québec City - Canada

The monitoring of Cultural Heritages conservation is an operational issue that requires a multidisciplinary approach able both to provide the dynamic and sustainable cultural heritage surveying and improve the understanding of historical materials in response to pollutants or climate changes, as well as natural events (e.g. earthquakes, avalanches and flooding hazards) [1]. Within such a framework, different methodologies are proposed in literature for Cultural Heritage monitoring, such as topographical surveys, digital photogrammetry, laser scanning, Global Positioning System (GPS), optical/radar satellite remote sensing, multispectral image analysis, 3-Dimensional (3D) modeling, Geographic Information System (GIS) [2]. The peculiarities of each case study and the difficult working conditions require particular solutions in terms of costs, acquisition time and generated products, which can be addressed and solved by considering a multi-technique surveying approach.
In this study, an integrated system of proximal remotely-sensed tools is proposed and investigated for Cultural Heritage surveying, which consists of a Ground-Based Synthetic Aperture Radar (GBSAR), a GB Real Aperture Radar (RAR) and a Terrestrial Laser Scanner (TLS). Preliminary results are presented for the Sant’Agostino Church in Cosenza to show the benefits of the proposed approach for Cultural Heritages monitoring.

[1] Ministry of Infrastructures, Assessment and Reduction of the Seismic Risk of Cultural Heritage, Technical Standards for Construction, Roma, Italy, 14 January 2008.

[2] F. Soldovieri, J. Dumoulin, N. Masini, and E. Utsi, “Noninvasive Sensing Techniques and Geophysical Methods for Cultural Heritage and Civil Infrastructures Monitoring,” International Journal of Geophysics, vol. 2011, pp. 1-2, 2011.

[3] Luzi G., Ground-based SAR Interferometry: a novel tool for Geoscience, Geoscience and Remote Sensing, New Achievements, P. Imperatore & D. Riccio editors, In-the Vukopvar, Croatia, February 2010.

[4] G. Luzi, O. Monserrat, and M. Crosetto, “Real Aperture Radar interferometry as a tool for buildings vibration monitoring: Limits and potentials from an experimental study,” 10th International conference on vibration measurements by laser and noncontact techniques 2012, Ancona, Italy, pp. 309-317, 27-29 June 2012.

[5] G. Casula, S. Fais, and P. Ligas, "Experimental Application of 3-D Terrestrial Laser Scanner and Acoustic Techniques in assessing the quality of stones used in monumental structures," International Journal of Microstructure and Materials Properties, vol. 4, no. 1, pp. 45-56, 2009.