Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601515
C. Grégoire, C. Van Geem
This paper summarizes the radar experience of the Belgian Road Research Centre (BRRC). The BRRC acquired a radar system (horn antennas of 1 and 2 GHz) in order to investigate the road structure: estimation of layer thickness (improvement of back calculation), visualization of homogeneous zones, detection of road damages, and so on. Some case studies are presented here. The possibilities are described but also the limitations of our equipment. The radar improves the knowledge of the road structure but there are some limitations. We hope some of the limitations will be solved by improving the acquisition parameters (equipment or humidity conditions) and the processing.
{"title":"Use of radar in road investigation BRRC experience","authors":"C. Grégoire, C. Van Geem","doi":"10.1109/IWAGPR.2013.6601515","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601515","url":null,"abstract":"This paper summarizes the radar experience of the Belgian Road Research Centre (BRRC). The BRRC acquired a radar system (horn antennas of 1 and 2 GHz) in order to investigate the road structure: estimation of layer thickness (improvement of back calculation), visualization of homogeneous zones, detection of road damages, and so on. Some case studies are presented here. The possibilities are described but also the limitations of our equipment. The radar improves the knowledge of the road structure but there are some limitations. We hope some of the limitations will be solved by improving the acquisition parameters (equipment or humidity conditions) and the processing.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130291556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601527
S. Nounouh, C. Eyraud, H. Tortel, A. Litman
We propose an approach for probing the near-subsurface based on the use of a single frequency combined with a multistatic configuration. Our goal is to retrieve the near-subsurface permittivity spatial distribution from measured electromagnetic fields. To that end, efforts have been done on the calibration procedure. In particular, the radiation pattern of the antenna is taken into account in the modeling of the scattering problem. We also preprocess the measured fields with an efficient method which takes profit of the spectral bandwidth properties of the scattered field allowing the removal of the residual interface contribution. Imaging results of shallowly buried target embedded in a high-losse medium are presented to assess the well-behavior of the proposed methodology.
{"title":"Near-subsurface imaging from a multistatic/single frequency scanner","authors":"S. Nounouh, C. Eyraud, H. Tortel, A. Litman","doi":"10.1109/IWAGPR.2013.6601527","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601527","url":null,"abstract":"We propose an approach for probing the near-subsurface based on the use of a single frequency combined with a multistatic configuration. Our goal is to retrieve the near-subsurface permittivity spatial distribution from measured electromagnetic fields. To that end, efforts have been done on the calibration procedure. In particular, the radiation pattern of the antenna is taken into account in the modeling of the scattering problem. We also preprocess the measured fields with an efficient method which takes profit of the spectral bandwidth properties of the scattered field allowing the removal of the residual interface contribution. Imaging results of shallowly buried target embedded in a high-losse medium are presented to assess the well-behavior of the proposed methodology.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120915804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601516
V. Gundelach, N. Blindow, U. Buschmann, C. Salat
In salt deposits with low electric conductivity ground penetrating radar (GPR) is an efficient non destructive tool for the exploration of internal structures. Faulted salt layers, potassium, clay, and anhydrite can be mapped by measuring distance and direction of reflecting objects. Various antenna types help to enhance resolution or penetration depth. Additional information about the conductivity of reflecting structures is included in the attenuation of the direct and reflected signals. Within the last two decades unique results from a salt dome in Northern Germany with various GPR systems were achieved. With this information a classification of various salt structures can be made by studying the signal amplitudes of reflections and of the direct wave between transmitting and receiving antenna, especially with borehole measurements.
{"title":"Correlation of internal salt structures with GPR amplitudes","authors":"V. Gundelach, N. Blindow, U. Buschmann, C. Salat","doi":"10.1109/IWAGPR.2013.6601516","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601516","url":null,"abstract":"In salt deposits with low electric conductivity ground penetrating radar (GPR) is an efficient non destructive tool for the exploration of internal structures. Faulted salt layers, potassium, clay, and anhydrite can be mapped by measuring distance and direction of reflecting objects. Various antenna types help to enhance resolution or penetration depth. Additional information about the conductivity of reflecting structures is included in the attenuation of the direct and reflected signals. Within the last two decades unique results from a salt dome in Northern Germany with various GPR systems were achieved. With this information a classification of various salt structures can be made by studying the signal amplitudes of reflections and of the direct wave between transmitting and receiving antenna, especially with borehole measurements.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128874123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601549
P. M. Barone, E. Mattei, C. Proietti, E. Pettinelli, C. Ferrara, S. Lauro, M. Viccaro
In the present paper we demonstrate the capability of different remote sensing techniques to reconstruct the evolutionary history of the lava flows on the Mt. Etna volcano. A preliminary approach to the sites, based on aerial photogrammetry, DEM, and topographic analyses, supports an intense GPR (Ground Penetrating Radar) survey in several sites with different stratigraphical characteristics. The GPR measurements are performed with a bistatic system equipped with both 500 and 1000 MHz antennas. The use of different polarizations (TE, TM, Cross-Tx, and Cross-Rx) allow to extract subsurface features information having 3D geological structure reconstruction, electromagnetic nature information and properties of buried reflectors. This preliminary study highlights how the GPR technique provides, non-destructively, useful data to study the mechanisms of emplacement and the correlated hazard. Furthermore, if an inactive lava tubes can only be detected after the collapse of their vault, the use of GPR, on the contrary, could help to locate buried undamaged lava tubes and to measure their dimensions, providing useful structural information. Lava tubes, also, strongly influences the development of lava fields and the hazard connected with them, because they keep the lava thermally isolated causing a propagation longer than it would have done in an open channel. Additionally, the combined use of different remote sensing techniques can be useful to better estimate the thickness of the lava fields, giving precious data about the nature of the flow. Finally, the results highlight the importance of this combined approach to evaluate different physical parameters at the same time.
{"title":"Ground-Penetrating Radar technique to investigate historic eruptions on the Mt. Etna volcano (Sicily, Italy)","authors":"P. M. Barone, E. Mattei, C. Proietti, E. Pettinelli, C. Ferrara, S. Lauro, M. Viccaro","doi":"10.1109/IWAGPR.2013.6601549","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601549","url":null,"abstract":"In the present paper we demonstrate the capability of different remote sensing techniques to reconstruct the evolutionary history of the lava flows on the Mt. Etna volcano. A preliminary approach to the sites, based on aerial photogrammetry, DEM, and topographic analyses, supports an intense GPR (Ground Penetrating Radar) survey in several sites with different stratigraphical characteristics. The GPR measurements are performed with a bistatic system equipped with both 500 and 1000 MHz antennas. The use of different polarizations (TE, TM, Cross-Tx, and Cross-Rx) allow to extract subsurface features information having 3D geological structure reconstruction, electromagnetic nature information and properties of buried reflectors. This preliminary study highlights how the GPR technique provides, non-destructively, useful data to study the mechanisms of emplacement and the correlated hazard. Furthermore, if an inactive lava tubes can only be detected after the collapse of their vault, the use of GPR, on the contrary, could help to locate buried undamaged lava tubes and to measure their dimensions, providing useful structural information. Lava tubes, also, strongly influences the development of lava fields and the hazard connected with them, because they keep the lava thermally isolated causing a propagation longer than it would have done in an open channel. Additionally, the combined use of different remote sensing techniques can be useful to better estimate the thickness of the lava fields, giving precious data about the nature of the flow. Finally, the results highlight the importance of this combined approach to evaluate different physical parameters at the same time.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116520486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601509
S. Ebihara, Yuta Kimura, T. Shimomura, Ryota Uchimura
This study demonstrates 3-D imaging of a fault using a thin (5.4 cm diameter) directional borehole radar sonde. In order to make the thin sonde, we needed to reduce interference between the centered conducting cylinder (CCC) and the antenna elements in the coaxial-fed circular dipole array in a borehole (CFCAB). Ferrite beads were loaded in the CCC for reduction of the interference. We conducted singlehole measurements with the thin sonde in an air-filled borehole. In this experiment, according to the power spectrum of a direct wave, we found that the ferrite loading decreased the resonant frequency of the CCC, widening the operating frequency bandwidth. The image constructed using the directional borehole radar agrees well with the information obtained from the boring core samples and observations in the gallery.
{"title":"Singlehole borehole radar measurement with a thin directional borehole radar sonde","authors":"S. Ebihara, Yuta Kimura, T. Shimomura, Ryota Uchimura","doi":"10.1109/IWAGPR.2013.6601509","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601509","url":null,"abstract":"This study demonstrates 3-D imaging of a fault using a thin (5.4 cm diameter) directional borehole radar sonde. In order to make the thin sonde, we needed to reduce interference between the centered conducting cylinder (CCC) and the antenna elements in the coaxial-fed circular dipole array in a borehole (CFCAB). Ferrite beads were loaded in the CCC for reduction of the interference. We conducted singlehole measurements with the thin sonde in an air-filled borehole. In this experiment, according to the power spectrum of a direct wave, we found that the ferrite loading decreased the resonant frequency of the CCC, widening the operating frequency bandwidth. The image constructed using the directional borehole radar agrees well with the information obtained from the boring core samples and observations in the gallery.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121251779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601525
L. Alperovich, L. Eppelbaum, J. Dumoulin, V. Zheludev, F. Soldovieri, M. Proto, M. Bavusi, A. Loperte
Ground Penetrating Radar (GPR) and Electric Resistivity Tomography (ERT) are well assessed and accurate geophysical methods for the investigation of subsurface geological sections. In this paper, we present the joint exploitation of these methods al the Montagnole (French Alps) experimental site with the final aim to study and monitor effects of possible catastrophic rockslides in transport infrastructures. It is known that factors as the ambiguity of geophysical field examination, the complexity of geological scenarios, and the low signal-to-noise ratio affect the possibility to build reliable physical-geological models of the investigated subsurface structure. Here, we applied for the GPR and ERT methods at Montagnole site, the recent advances in the wavelet theory and data mining. Wavelet approach was specifically used to achieve enhanced (e.g., coherence portraits) images resulting from the integration of the different geophysical fields. This methodology based on the matching pursuit combined with wavelet packet dictionaries permitted us to extract desired signals in different physical-geological conditions, even in presence of strongly noised data. Such tools as complex wavelets were employed to the coherence portraits, combined GPR-ERT coherency orientation angle, to name a few, enable performing non-conventional operations of integration and correlation in subsurface geophysics. The estimation of the above mentioned parameters proved useful not only for location of buried inhomogeneties but also for a rough estimation of their electromagnetic and related properties. Therefore, the combination of the above approaches has allowed to set-up a novel methodology, which may enhance reliability and confidence of each separate geophysical method and their integration.
{"title":"GPR and ERT combined analysis on the basis of advanced wavelet methodology: The Montagnole testing area","authors":"L. Alperovich, L. Eppelbaum, J. Dumoulin, V. Zheludev, F. Soldovieri, M. Proto, M. Bavusi, A. Loperte","doi":"10.1109/IWAGPR.2013.6601525","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601525","url":null,"abstract":"Ground Penetrating Radar (GPR) and Electric Resistivity Tomography (ERT) are well assessed and accurate geophysical methods for the investigation of subsurface geological sections. In this paper, we present the joint exploitation of these methods al the Montagnole (French Alps) experimental site with the final aim to study and monitor effects of possible catastrophic rockslides in transport infrastructures. It is known that factors as the ambiguity of geophysical field examination, the complexity of geological scenarios, and the low signal-to-noise ratio affect the possibility to build reliable physical-geological models of the investigated subsurface structure. Here, we applied for the GPR and ERT methods at Montagnole site, the recent advances in the wavelet theory and data mining. Wavelet approach was specifically used to achieve enhanced (e.g., coherence portraits) images resulting from the integration of the different geophysical fields. This methodology based on the matching pursuit combined with wavelet packet dictionaries permitted us to extract desired signals in different physical-geological conditions, even in presence of strongly noised data. Such tools as complex wavelets were employed to the coherence portraits, combined GPR-ERT coherency orientation angle, to name a few, enable performing non-conventional operations of integration and correlation in subsurface geophysics. The estimation of the above mentioned parameters proved useful not only for location of buried inhomogeneties but also for a rough estimation of their electromagnetic and related properties. Therefore, the combination of the above approaches has allowed to set-up a novel methodology, which may enhance reliability and confidence of each separate geophysical method and their integration.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128566208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601550
A. Benedetto, F. Tosti, B. Ortuani, M. Giudici, M. Mele
The analysis of soil moisture variability is important for many applications, from civil engineering issues to agricultural and Earth sciences problems. Ground-penetrating radar (GPR) is a very flexible and wide-ranging instrument for this scope at a limited scale, but generally the reliability of the local predictions needs to be validated. Moreover, in the field of pavement engineering, high spatial variations of moisture can produce unexpected damages of the road bearing courses. In this study, an in-field validation of GPR measurements from capacitance probes data was carried out. This study contributes to the research in the field of pavement engineering to prevent damages and plan effective management.
{"title":"Soil moisture mapping using GPR for pavement applications","authors":"A. Benedetto, F. Tosti, B. Ortuani, M. Giudici, M. Mele","doi":"10.1109/IWAGPR.2013.6601550","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601550","url":null,"abstract":"The analysis of soil moisture variability is important for many applications, from civil engineering issues to agricultural and Earth sciences problems. Ground-penetrating radar (GPR) is a very flexible and wide-ranging instrument for this scope at a limited scale, but generally the reliability of the local predictions needs to be validated. Moreover, in the field of pavement engineering, high spatial variations of moisture can produce unexpected damages of the road bearing courses. In this study, an in-field validation of GPR measurements from capacitance probes data was carried out. This study contributes to the research in the field of pavement engineering to prevent damages and plan effective management.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129242402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601553
L. Capineri, V. Razevig, S. Ivashov, F. Zandonai, C. Windsor, M. Inagaki, T. Bechtel
The development of high lateral resolution holographic radar imaging has stimulated new research on mapping of exposed dinosaurs and detection of tracks hidden in the uppermost layers of potential track-bearing rocks, as well as for the characterization of rock features around tracks. This project involves experiments on tracksites, museum specimens, and laboratory models from around the world. Preliminary experiments indicate that holographic radar will be able to provide comprehensive tracksite mapping with objectivity and total non-invasiveness.
{"title":"RASCAN holographic radar for detecting and characterizing dinosaur tracks","authors":"L. Capineri, V. Razevig, S. Ivashov, F. Zandonai, C. Windsor, M. Inagaki, T. Bechtel","doi":"10.1109/IWAGPR.2013.6601553","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601553","url":null,"abstract":"The development of high lateral resolution holographic radar imaging has stimulated new research on mapping of exposed dinosaurs and detection of tracks hidden in the uppermost layers of potential track-bearing rocks, as well as for the characterization of rock features around tracks. This project involves experiments on tracksites, museum specimens, and laboratory models from around the world. Preliminary experiments indicate that holographic radar will be able to provide comprehensive tracksite mapping with objectivity and total non-invasiveness.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116328066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601546
E. Babcock, J. Bradford
Characterization of contamination in the subsurface is expensive, difficult, and often unreliable. Characterizing Dense Non-Aqueous Phase Liquid (DNAPL) contamination is especially difficult. Geophysical methods, including ground penetrating radar (GPR), are well-suited to measurement of NAPL contamination, as they offer the potential to detect isolated contaminant distributions that borehole monitoring or other methods may miss. We measure the Amplitude Variation with Offset (AVO) response of radar energy to a chlorinated solvent (3M Novec HFE-7200) in a laboratory experiment through controlled injections of the 7200 fluid into a saturated sand/clay system. We demonstrate well defined AVO anomalies associated with the simulate DNAPL spill. The experiment shows that AVO anomalies can be induced when the contaminant layer is as thin as 1/30 the wavelength of the signal at the dominant frequency.
{"title":"Detecting subsurface contamination using ground penetrating radar and amplitude variation with offset analysis","authors":"E. Babcock, J. Bradford","doi":"10.1109/IWAGPR.2013.6601546","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601546","url":null,"abstract":"Characterization of contamination in the subsurface is expensive, difficult, and often unreliable. Characterizing Dense Non-Aqueous Phase Liquid (DNAPL) contamination is especially difficult. Geophysical methods, including ground penetrating radar (GPR), are well-suited to measurement of NAPL contamination, as they offer the potential to detect isolated contaminant distributions that borehole monitoring or other methods may miss. We measure the Amplitude Variation with Offset (AVO) response of radar energy to a chlorinated solvent (3M Novec HFE-7200) in a laboratory experiment through controlled injections of the 7200 fluid into a saturated sand/clay system. We demonstrate well defined AVO anomalies associated with the simulate DNAPL spill. The experiment shows that AVO anomalies can be induced when the contaminant layer is as thin as 1/30 the wavelength of the signal at the dominant frequency.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127220369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-02DOI: 10.1109/IWAGPR.2013.6601552
N. Boubaki, E. Léger, A. Saintenoy
A Ground-Penetrating Radar (GPR) prospection was carried out to sound the ground of the church of Sainte-Mesme, a village near Dourdan in France. This church was chosen because of the presence of a known underground vault in its south part. We tested the ability of determining the presence of a cavity from amplitude versus offset anomaly observed on multi-offset profile. During the acquisition, the GPR survey gave evidences of another forgotten underground vault in the main choir. Posterior to this discovery an archaeological study was performed in the opened vaults which concluded to the use of both underground rooms in the XIVth century.
{"title":"The discovery of a forgotten vault in the church of Sainte-Mesme (Les Yvelines)","authors":"N. Boubaki, E. Léger, A. Saintenoy","doi":"10.1109/IWAGPR.2013.6601552","DOIUrl":"https://doi.org/10.1109/IWAGPR.2013.6601552","url":null,"abstract":"A Ground-Penetrating Radar (GPR) prospection was carried out to sound the ground of the church of Sainte-Mesme, a village near Dourdan in France. This church was chosen because of the presence of a known underground vault in its south part. We tested the ability of determining the presence of a cavity from amplitude versus offset anomaly observed on multi-offset profile. During the acquisition, the GPR survey gave evidences of another forgotten underground vault in the main choir. Posterior to this discovery an archaeological study was performed in the opened vaults which concluded to the use of both underground rooms in the XIVth century.","PeriodicalId":257117,"journal":{"name":"2013 7th International Workshop on Advanced Ground Penetrating Radar","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121532297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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