Yi Hu, Yipang Liu, Jianxiang Ding, Boran Liu, Zhongxin Chu
{"title":"Regional archaeological underwater survey method: Applications and implications","authors":"Yi Hu, Yipang Liu, Jianxiang Ding, Boran Liu, Zhongxin Chu","doi":"10.1002/arp.1876","DOIUrl":"10.1002/arp.1876","url":null,"abstract":"<p>Underwater cultural heritage (UCH) contributes to history, the arts, the economy and science. The number of intact and easily discoverable UCH sites is decreasing due to excavation in China. To conduct active surveys for mapping archaeological sites, rather than mapping based only on incidental reported finds from fishing operations, a regional archaeological underwater survey method is proposed according to independent geographical units and historical archives. This method is based on the approach used for systematic regional archaeological surveys on land and comprehensively examines similar survey examples. Old port districts, sea routes, fishing zones and naval battle areas are potential targets for this method. From 2012 to 2017, the survey method performed well when applied in the Haitan Strait, China, discovering intact sites, fragmented shipwrecks and numerous interfering objects. The method needs further refinement to eliminate interference and to obtain more detailed information about UCH. The main steps in this method include the selection of potential wreck site areas, the use of sequential equipment and survey line design. Cooperation between archaeologists and surveyors is essential.</p>","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 4","pages":"607-622"},"PeriodicalIF":1.8,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48937851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arthur Laenger, Arnaud Martel, Fabien Boucher, Xavier François, Michel Dabas, Joséphine Rouillard, Aline Durand
{"title":"Comparison of geophysical prospecting and geochemical prospecting at the medieval and modern Cistercian Abbey of Carnoët (Finistère, France)","authors":"Arthur Laenger, Arnaud Martel, Fabien Boucher, Xavier François, Michel Dabas, Joséphine Rouillard, Aline Durand","doi":"10.1002/arp.1875","DOIUrl":"10.1002/arp.1875","url":null,"abstract":"<p>Saint-Maurice Abbey in Carnoët (Finistère) underwent an in-depth archaeological appraisal during 2018–2019, involving several non-destructive technologies: the geophysical survey revealed the presence of expected structures, drawn on ancient plans, but also the presence of structures unknown up until now. A group of buildings on the edge of the pond in particular raised several questions. A geochemical survey was carried out there in order to try to characterize these buildings and observe the potential complementarity between geophysical and geochemical surveys. The results of the chemical analysis do not highlight the same level of detail of the structures as electrical resistivity, but these analyses seem to be able to clarify the geophysical diagnosis by discriminating signals of structures from echoes linked to the geological substrate.</p>","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 4","pages":"597-606"},"PeriodicalIF":1.8,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/arp.1875","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42229039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michael Doneus, Bernhard Höfle, Dominic Kempf, Gwydion Daskalakis, Maria Shinoto
{"title":"Human-in-the-loop development of spatially adaptive ground point filtering pipelines—An archaeological case study","authors":"Michael Doneus, Bernhard Höfle, Dominic Kempf, Gwydion Daskalakis, Maria Shinoto","doi":"10.1002/arp.1873","DOIUrl":"10.1002/arp.1873","url":null,"abstract":"<p>LiDAR data have become indispensable for research in archaeology and a variety of other topographic applications. To derive products (e.g. digital terrain or feature models, individual trees, buildings), the 3D LiDAR points representing the desired objects of interest within the acquired and georeferenced point cloud need to be identified. This process is known as classification, where each individual point is assigned to an object class. In archaeological prospection, classification focuses on identifying the object class ‘ground points’. These are used to interpolate digital terrain models exposing the microtopography of a terrain to be able to identify and map archaeological and palaeoenvironmental features. Setting up such classification workflows can be time-consuming and prone to information loss, especially in geographically heterogeneous landscapes. In such landscapes, one classification setting can lead to qualitatively very different results, depending on varying terrain parameters such as steepness or vegetation density. In this paper, we are focussing on a special workflow for optimal classification results in these heterogeneous environments, which integrates expert knowledge. We present a novel Python-based open-source software solution, which helps to optimize this process and creates a single digital terrain model by an adaptive classification based on spatial segments. The advantage of this approach for archaeology is to produce coherent digital terrain models even in geomorphologically heterogenous areas or areas with patchy vegetation. The software is also useful to study the effects of different algorithm and parameter combinations on digital terrain modelling with a focus on a practical and time-saving implementation. As the developed pipelines and all meta-information are made available with the resulting data set, classification is white boxed and consequently scientifically comprehensible and repeatable. Together with the software's ability to simplify classification workflows significantly, it will be of interest for many applications also beyond the examples shown from archaeology.</p>","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 4","pages":"503-524"},"PeriodicalIF":1.8,"publicationDate":"2022-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/arp.1873","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41750126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Peter Trebsche, Ingrid Schlögel, Adrian Flores-Orozco
{"title":"Combining geophysical prospection and core drilling: Reconstruction of a Late Bronze Age copper mine at Prigglitz-Gasteil in the Eastern Alps (Austria)","authors":"Peter Trebsche, Ingrid Schlögel, Adrian Flores-Orozco","doi":"10.1002/arp.1872","DOIUrl":"10.1002/arp.1872","url":null,"abstract":"<p>Prehistoric mines are often too large and too deep for conventional archaeological excavations. Non-destructive and minimally invasive methods of prospection can help to overcome these limits. Our case study of a Late Bronze Age opencast mine (ca. 1050 to 780 BC) shows the potential of geophysical prospection methods combined with core drillings. For the reconstruction of this mine, we combined electrical resistivity and induced polarization (IP) tomography, seismic refraction tomography (SRT) and ground penetrating radar (GPR). The geophysical data were collected based on an orthogonal grid of 10 longitudinal and transverse profiles, laid out over an area of ~330 × 300 m. The profiles allowed a three-dimensional interpolation of the geological units, the mining dumps, the mining areas and the residual mineralization. Additionally, two deep cores were drilled to ground-truth the geophysical prospection results. They provided information about the stratification at intersections of the measurement grid, and this proved crucial for validating the interpreted geophysical profiles. Each geophysical method applied provided different information for the reconstruction of the site: the electrical resistivity tomography offered the best clues as to the locations of the geological units and the dumps, the seismic refraction tomography visualized the transition between the dump or backfill layers and the underlying bedrock, and the IP measurements revealed residual mineralization. The georadar measurements, on the other hand, did not contribute to the interpretation owing to the limited depth of penetration. Based on the combination of borehole and geophysical data, it was possible to develop a hypothetical model of an open-pit mine for copper ore that developed in three phases (mines A–C) during the Late Bronze Age. Without the control provided by the core drillings, one of the mining areas (mine A) could not have been correctly identified in the geophysical prospections.</p>","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 4","pages":"557-577"},"PeriodicalIF":1.8,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10087026/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9317417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ellen A. Cowan, Keith C. Seramur, January W. Costa, Neeshell Bradley-Lewis, Scott T. Marshall
{"title":"Integration of shallow geophysics, archaeology and archival photographs to reveal the past buried at Ingleside Plantation, Piedmont North Carolina (USA)","authors":"Ellen A. Cowan, Keith C. Seramur, January W. Costa, Neeshell Bradley-Lewis, Scott T. Marshall","doi":"10.1002/arp.1871","DOIUrl":"10.1002/arp.1871","url":null,"abstract":"<p>Ground penetrating radar supported by electrical resistivity tomography and gradiometer surveys were used to map buildings and infrastructure documenting sequential property use by three generations of the Jacob Forney family who began as farmers in the backcountry of North Carolina and rose to prominence in government and industry within the Southeastern United States. At Ingleside, the antebellum plantation house has been preserved, and the adjacent property remains relatively undisturbed. Context for the geophysical surveys was provided by archival photographs, written accounts including monographs and newspaper articles, and an archaeological excavation of the stone hearth within the plantation's summer kitchen. The location of an early log home with a stone-lined cellar with ties to the Piedmont Campaign of the American Revolution (in 1781) was newly discovered. In addition, a historic road, kitchen garden, and the postholes from an early post-in-the-ground building were imaged within the subsurface. The external summer kitchen and privy are associated with the plantation house constructed in 1817. Several cesspool vaults of potential privies are ingrown with trees. The results of the geophysical surveys document the evolving land use within one family in the American South and can be connected to a specific event in history, a goal of historical archaeology.</p>","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 4","pages":"545-556"},"PeriodicalIF":1.8,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/arp.1871","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47068852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of the benefits for mapping faint archaeological features by using an ultra-dense ground-penetrating-radar antenna array","authors":"Roland Linck, Andreas Stele, Hans-Martin Schuler","doi":"10.1002/arp.1870","DOIUrl":"10.1002/arp.1870","url":null,"abstract":"<p>Modern archaeo-geophysical radar surveys are often executed with multichannel antenna arrays, which allows a much faster survey progress combined with a denser profile spacing. Furthermore, from a methodological point of view, a full 3D dataset is necessary to resolve small targets of a few decimetre diameter. However, only a few test surveys deal with the evaluation of the real improvement in data quality by applying such multichannel arrays. In this paper, a test survey with the IDS Stream-C 600-MHz radar device on a small area covering the Roman Bath of Kempten-<i>Cambodunum</i> is presented. The aim of the study is to figure out whether faint archaeological remains like hypocaust pillars, that is, the pillars of a Roman floor heating system, that are missed by single-channel devices, are detectable in an ultra-dense antenna array. Thus, the same area was simultaneously mapped with both GPR configurations. The results of this case study demonstrate the benefit of such antenna arrays for the archaeological prospection of small subsurface features with a diameter of 25 cm or less. For ground-truthing of the results, a comparison with old excavation maps was executed.</p>","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 4","pages":"637-643"},"PeriodicalIF":1.8,"publicationDate":"2022-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/arp.1870","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47834789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tomasz Dziurdzik, Michał Pisz, Anna Mech, Mirko Rašić
{"title":"Reinterpreting a “Roman villa” site: First results of nondestructive archaeological research in Dračevica (Donji Radišići, Bosnia and Herzegovina)","authors":"Tomasz Dziurdzik, Michał Pisz, Anna Mech, Mirko Rašić","doi":"10.1002/arp.1868","DOIUrl":"10.1002/arp.1868","url":null,"abstract":"<p>The article presents the results of archaeological prospection of site Dračevica (Donji Radišići, Ljubuški municipality, West Herzegovina Canton, Bosnia and Herzegovina) which was partly excavated in the late 19th century and so far has been interpreted as a Roman villa, possibly with a special function (road station) and a name attested in ancient sources (<i>Bigeste</i>). Through the use of various nondestructive prospecting methods (aerial photogrammetry, fieldwalking survey, magnetic susceptibility, magnetometry, earth resistance), precise location with RTK GNSS and integration of the data in GIS, the site was restudied and reinterpreted. It was established that the structures are not isolated, as was assumed in the earlier research but rather were a part of a much larger Roman settlement. The research proves that the internal spatial division of the site is more complicated than previously thought, consisting of several building complexes located along a road, as well as land division systems. Such settlement pattern suggests similar, average-sized land plots and farms. The importance of the research lies also in the methodological approach and the outcome of the geophysical research. Our research was the first application of nondestructive methods of archaeological prospection on Roman sites in the karst landscapes of West Herzegovina, proving the usefulness of the applied methodology in these specific and difficult conditions. We have found dependencies in between the geological background (thin layer of low resistive, colluvial soil on shallow limestone bedrock and the occurrence of highly magnetic terra rossa, formed on weathered limestone) and the geophysical responses registered by various instruments, that is, moderate to good magnetic and electric contrasts between the features and their surroundings, with relatively strong anomalies from geological features. The most important was finding relationships between particular magnetic and electrical anomalies and the presence of very shallow bedrock or faint archaeological remains (e.g. limestone walls). Our methodology, as well as some of our interpretations, will be helpful as a reference for further surveys in the region.</p>","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 3","pages":"479-499"},"PeriodicalIF":1.8,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/arp.1868","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46523835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Francisco Sánchez Díaz, Leonardo García Sanjuán, Timoteo Rivera Jiménez
{"title":"Potential and limitations of LiDAR altimetry in archaeological survey. Copper Age and Bronze Age settlements in southern Iberia","authors":"Francisco Sánchez Díaz, Leonardo García Sanjuán, Timoteo Rivera Jiménez","doi":"10.1002/arp.1869","DOIUrl":"10.1002/arp.1869","url":null,"abstract":"<p>The archaeological use of images and data obtained through devices carried on mobile platforms (such as airplanes and satellites) is already one century old. Today, aerial photography and remote sensing are routinely used to capture, process and analyse archaeological evidence present on the surface of the earth, which is reflected in a large body of literature—see Bewley (<span>1999</span>), Corsi et al. (<span>2013</span>), Palmer and Cox (<span>1993</span>), Piccarreta and Ceraudo (<span>2000</span>), Riley (<span>1987</span>) and Wilson (<span>1982</span>) for the former and Campana and Forte (<span>2001</span>), Lasaponara and Masini (<span>2012</span>), Limp (<span>1989</span>), Lyons (<span>1981</span>), Wiseman and El-Baz (<span>2007</span>) and Wheatley and Gillings (<span>2013</span>), for the latter.</p><p>In the last two decades, there has been a steady increase in the usage of altimetric analysis based on high-resolution techniques aimed at the detection of architectural elements both above ground and underground which are difficult to detect through conventional air photography and remote sensing methods. Prominent among those techniques is airborne laser scanning (ALS), which, like terrestrial laser scanning (TLS), allows for the detection and measurement of microtopographies with a level of precision not attainable with conventional techniques of surveying and photogrammetric restitution (Challis et al., <span>2008</span>; Chase et al., <span>2010</span>; Doneus & Briese, <span>2006</span>; Doneus & Kühteiber, <span>2013</span>; Fernandez-Diaz et al., <span>2014</span>; Fontana, <span>2022</span>; Gallagher & Josephs, <span>2008</span>; Harmon et al., <span>2006</span>; Opitz, <span>2013</span>; Opitz & Cowley, <span>2013</span>; Risbøl, <span>2010</span>; Risbøl & Gustavsen, <span>2018</span>). As is well-known, this technology uses active LiDAR (light detection and ranging) sensors which emit a beam of polarized infrared light which is discretized in pulses in order to measure the distance between the sensor and the scanned object by the time difference between the pulse emission and the reception of its reflection (time of flight, TOF). This offers a value of the relative position of the object with regards the sensor, which in turn must be converted in absolute terrestrial coordinates within a geodesic system through an accurate measurement of the position, altitude, orientation and sensor speed by means of a global navigation satellite system (GNSS) with differential correction and an inertial measurement unit (IMU). When LiDAR sensors are fixed on airplanes, decimetric levels of accuracy are achieved, which may turn centimetric on helicopters or drones. The final result is a three-dimensional scatter of points which may be treated through digital 3D-modelling applications to create precise altimetric models, using both the first returns to produce a digital surface model (DSM) or the ground returns (fi","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 4","pages":"525-544"},"PeriodicalIF":1.8,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/arp.1869","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42881261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alain M. Plattner, Steven Filoromo, Elliot H. Blair
{"title":"Multi-method geophysical investigation at Snow's Bend, a Mississippian platform mound","authors":"Alain M. Plattner, Steven Filoromo, Elliot H. Blair","doi":"10.1002/arp.1866","DOIUrl":"10.1002/arp.1866","url":null,"abstract":"<p>Archaeological investigations of Mississippian platform mounds have traditionally required invasive excavation or coring. Excavations are damaging to sites, and in many cases, invasive or destructive research methods on Native American mounds are forbidden or inappropriate. Non-invasive geophysical investigations avoid these issues but have their own challenges in terms of resolving the interior of the mound, particularly if electrically conductive materials, such as clay, are present. Here, we present a multi-method non-invasive geophysical approach using ground penetrating radar, electrical resistivity tomography, time-domain induced polarization, and electrical resistance mapping to study the Mississippian platform mound at Snow's Bend (1TU2/3), a late Moundville II/III (ca. AD 1300 to 1520) site located near Moundville, Alabama. From our data, we interpreted at least two construction stages and found indications of remnants of summit architecture on each. The final, as well as earlier, construction stage of the mound had a two-tier summit with a lower platform in the northern half of the mound. Summit buildings were identified on the lower platforms of each mound stage. We acknowledge that there is inherent uncertainty with any non-invasive approach, but demonstrate the capabilities of geophysics for new understandings of the life-histories of Mississippian platform mounds.</p>","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 3","pages":"343-351"},"PeriodicalIF":1.8,"publicationDate":"2022-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43110951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hang-Tak Jeon, Se-Yeong Hamm, Hyoun-Jae Lee, Samgyu Park, Sang-Hyun Kim
{"title":"Delineating the Bonghwang earth castle and Royal Palace of Geumgwan Gaya Kingdom using multiple geophysical techniques","authors":"Hang-Tak Jeon, Se-Yeong Hamm, Hyoun-Jae Lee, Samgyu Park, Sang-Hyun Kim","doi":"10.1002/arp.1867","DOIUrl":"10.1002/arp.1867","url":null,"abstract":"<p>Geophysical techniques such as electrical resistivity, ground penetrating radar (GPR), gravity, magnetic, and seismic surveys are useful for prospecting archaeological remains. In this study, we delineated the domain and underground structure of the Bonghwang earth castle and the Royal Palace of the Geumgwan Gaya Kingdom, using multiple geophysical surveys (magnetic, electromagnetic, GPR, and electrical resistivity). Based on the results, the Bonghwang earth castle was extended from a small hill branching from the northern end of the Bonghwangdae hill with a width of 20 m to the hill on the southeast end with a width of slightly over 40 m. The Royal Palace inside the Bonghwang earth castle was further explored using magnetic and GPR surveys. As a result low magnetic values are surrounded radially by high magnetic values at multiple independent locations in an irregular shape in the centre of the Royal Palace. In contrast, the high anomaly zone near the centre of the Royal Palace had a rectangular or ellipsoidal shape, necessitating a clear need for archaeological investigation and excavation in the future.</p>","PeriodicalId":55490,"journal":{"name":"Archaeological Prospection","volume":"29 3","pages":"465-478"},"PeriodicalIF":1.8,"publicationDate":"2022-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48579807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}