Remote Sensing and Archaeological Prospection in Apulia,Italy

Abstract

When deployed in combination with ground control, archaeological surface survey, and environmental research, remote sensing based upon high-resolution multispectral satellite imagery allows large areas to be evaluated efficiently by a small team of researchers and contributes to a better understanding of an archaeological landscape. In 2007 and 2008, we analyzed ca. 100 sq km of imagery centered on L'Amastuola, Italy. Combining the evaluation of high-resolution multispectral imagery with concurrent ground control led to the discovery of 29 sites and significant off-site scatters during about four weeks of fieldwork. Our analysis indicates that most of the detected features reflect geological conditions amenable to past human habitation rather than subsurface archaeological remains. Earlier fieldwork by the Murge Tableland Survey (MTS) provided independent definitions for various types of sites and a large sample of sites and off-site scatters in the study area. Comparison of our remote-sensing guided efforts with the results of that survey suggests that our success rate is too high to be explained by random association and also illuminates the strengths and weaknesses of the respective methods, underscoring the need to integrate satellite image analysis with ground control and surface survey.     

Using Airborne LiDAR Survey to explore Historic-era archaeological landscapes of Montserrat in the Eastern Caribbean

Abstract

This article describes what appears to be the first archaeological application of airborne LiDAR survey to historic-era landscapes in the Caribbean archipelago, on the island of Montserrat. LiDAR is proving invaluable in extending the reach of traditional pedestrian survey into less favorable areas, such as those covered by dense neotropical forest and by ashfall from the past two decades of active eruptions by the Soufrière Hills volcano, and to sites in localities that are inaccessible on account of volcanic dangers. Emphasis is placed on two aspects of the research: first, the importance of ongoing, real-time interaction between the LiDAR analyst and the archaeological team in the field; and second, the advantages of exploiting the full potential of the three-dimensional LiDAR point cloud data for purposes of the visualization of archaeological sites and features.     

From conflict archaeology to archaeologies of conflict: remote survey in Kandahar,Afghanistan

ABSTRACT

Emerging from research with the Afghan Heritage Mapping Partnership, a multi-year project using satellite imagery to detect, record and manage archaeological heritage, this paper examines the potentials of remote-sensing to not only monitor archaeological material culture, but also contemporary materiality as it is violently (re)assembled through conflict. Through systematic remote-sensed archaeological survey using diachronic imagery in Kandahar, Afghanistan, this work expands archaeological understanding of an under-surveyed region while exploring the impact of the region’s expansive military infrastructural footprint on cultural heritage. Further, this research considers the long history of landscapes of control and successive military occupations. Remote survey allows for continued generation of archaeological data during conflict, thereby enabling more thorough heritage management. Finally, this survey demonstrates that, although remote aerial technologies have been criticized as tools of violence, surveillance and control, satellite imagery can be used analytically to generate new understandings of and challenges to military infrastructural reach.     

GIS,Archaeological Survey,and Landscape Archaeology on the Island of Kythera,Greece

Abstract

GIS and quantitative analysis are used to explore a series of simple but important issues in GIS-led survey. we draw on information collected during intensive archaeological field survey of the island of Kythera, Greece, and consider four questions: the relationship between terracing and enclosed field systems; the effect of vegetation on archaeological recovery; site definition and characterization in multi-period and artifact-rich landscapes; and site location modelling that considers some of the decisions behind the placing of particular Bronze Age settlements. we have chosen GIS and quantitative methods to extract patterns and structure in our multi-scalar dataset, demonstrating the value of GIS in helping to understand the archaeological record and past settlement dynamics. The case studies can be viewed as examples of how GIS may contribute to four stages in any empirically based landscape project insofar as they move from the spatial structure of the modern landscape, to the visibility and patterning of archaeological data, to the interpretation of settlement patterns.     

The Integration of VHR Satellite Imagery,GPR Survey and Boring for Archaeological Prospection at the Longcheng Site in Anhui Province,China

This paper is focused on the joint use of non‐invasive and minimal intervention techniques for supporting archaeological prospection. Very high resolution (VHR) satellite imagery analysis and ground‐penetrating radar (GPR) and boring surveys were integrated for the study of the Longcheng site, located near Hefei city in Anhui Province, China, to test their effectiveness and efficiency in prospecting archaeological remains and evaluating their degree of preservation. First, target locations of potential archaeological structures were identified on a WorldView‐2 (WV‐2) satellite image through spatial and radiometric enhancement, interpretation and object‐oriented classification. Second, archaeological features extracted from the WV‐2 imagery were further investigated by a GPR survey that provided detailed cross‐checking information about buried remains. Finally, a subsequent boring survey was conducted across those prospective archaeological structures in order to map the stratigraphic sequences on the basis of colour, compactness and the inclusions contained in the soil, and then to test their correspondence with the GPR data. The boring led to detailed confirmation of the results produced by the remote sensing analyses and GPR surveys, as well as the discovery of datable artefacts. On the basis of all the integrated data, the preliminary layout and structure of the Longcheng site was reconstructed in GIS. Furthermore, the widths, lengths, heights and burial depths of these buried archaeological structures were estimated in detail.     

Settlement studies and the archaeological survey of North Norway — A discussion based on the survey of North Troms

By the end of the 1984 field season a systematic archaeological survey of the county of Troms was completed. At the same time a revision of the survey was started. The survey of Troms is part of a nation‐wide archaeological survey, connected with the production of an Economic Map of Norway. Though the validity of the methods and the results of this survey have been questioned, few attempts have been made at evaluating the archaeological data base produced by the survey. The current total revision of the survey makes this task even more urgent. The aim of this paper is to contribute towards such an evaluation, by utilizing the survey data from six North Troms municipalities in an attempt at constructing a history of settlement for this area.     

The dating of Doggerland – post-glacial geochronology of the southern North Sea

Abstract

The landscapes and archaeological sites of the southern North Sea, drowned in the period 12–6 ky BP, represent an almost unexplored field of research. Published palaeoenvironmental reconstructions are largely speculative, being based on few published sea-level index points and in the absence of detailed physical and chronological surveys. In this paper, we review the post-glacial geochronology for the southern North Sea, which includes 54 radiocarbon ages derived from peat, 17 from molluscs and one known dated artefact. The lack of detailed contextual information for many dated samples means that there remains uncertainty in some elevation data, and thus in the resulting interpreted sea level. The archaeological artefacts are mostly derived deposits and thus are of limited use in palaeoenvironmental reconstruction. Overall, the data are consistent with current models of relative sea-level change back to about 10 ky BP (～45 m depth) but beyond this, there is very little published data. Much more detailed stratigraphic, microfossil and geochemical analysis is needed to help verify chronological data, help interpret the sedimentary settings in which fossils and artefacts are found, and contribute towards more reliable palaeoenvironmental and archaeological reconstructions of the history of the southern North Sea.     

Theatre of Power: The Anglo-Norman Park at Earlspark,Co Galway,Ireland

Abstract

THIS PAPER EXAMINES the archaeological and historical evidence for a 13th-century park at Earlspark, Loughrea, Co Galway. This is the first detailed study of an Irish Anglo-Norman-period park to be published, and the site, which lies c 2 km south-east of the town of Loughrea, is exceptionally well preserved. It is documented in 1333, along with its deer, and field survey in the area has identified the park, which is defined by a mortared stone wall extending for 7.4 km and standing up to 2.6 m in height.     

Editorial Introduction

Abstract

International response to the problem of looting of archaeological sites has been hampered by the difficulty of quantifying the damage done. The scarcity of reliable information negatively impacts professional and public policy making, rendering consensus about the scale of the problem and the effectiveness of policy responses difficult to achieve. We report here on the use of publicly-available satellite imagery for quantifying the damage caused by looting of archaeological sites in Jordan. The ease of use and affordability of imagery such as that provided by Google Earth make the identification, quantification, and monitoring of archaeological site looting possible at a level previously unimagined. Our findings about looting at archaeological sites in Jordan shed light on the potential for a broader application of the method.     

Roman and Byzantine Settlements in the Region of West Irbid

Abstract

It was always clear that for practical reasons any new region-based study of the Roman and Byzantine periods in north-western Jordan would have to rely on existing evidence from archaeological surveys and excavations. The concentration of previous archaeological survey work in parts of the region of West Irbid in Jordan, and especially the surveys made by N. Glueck in the 1940s and S. Mittmann in the 1960s, made this area especially attractive for archaeologists. In this paper, the aim was to analyze the results of the West Irbid survey, particularly of the Roman and Byzantine periods, made during September 2005. The information gathered was of great help, enabling the classifi cation of sites into groups according to the nature of occupation, and analyzing the discovered architectural remains to provide a broader context for interpretation of the nature of Roman and Byzantine settlements in the surveyed region.     

Large-Area Remote Sensing Coverage of Archaeological Sites with a Dual-Track Cart-Mounted Cesium Magnetometer

Abstract

This paper describes the benefits of collecting total field magnetic data at archaeological sites with a mobile cart holding two cesium magnetometer sensors and a separate stationary base station magnetometer to correct for global-scale magnetic fluctuations. To date, the Texas Historical Commission has surveyed 40 sites from various time periods and geographical settings in Texas. The cart has allowed rapid surveys over large areas while minimizing signal-degrading noise. Four examples from Texas show that large-area and high-density magnetic surveys can be completed in relatively short periods of time producing maps that aid significantly in archaeological site interpretation. In some instances, no field excavation was required to understand quickly what the magnetic patterns represented in terms of buried archaeological features. In all cases, the magnetometer maps provided important information to help guide future field excavations.     

Satellite Remote Sensing of Archaeological Vegetation Signatures in Coastal West Africa

This article discusses how archaeological sites in Sierra Leone, and by extension much of West Africa, can be identified through vegetation patterns (vegetation signatures) detectable in very high-resolution (VHR) multispectral satellite imagery. Settlement sites typically have a differing pattern of vegetation from the surrounding landscape, including concentrations of very large trees with sociocultural and historical significance: cotton (Ceiba pentandra) and baobab (Adansonia digitata). These features are conspicuous elements of the landscape both from the ground and in aerial imagery. Two complementary methods of using VHR multispectral satellite imagery are discussed in this paper: visual interpretation and semi-automated subpixel classification. These techniques are aiding ongoing archaeological survey of the Sierra Leone River Estuary. The impact of recently renewed industrial activity at a site of probable archaeological significance is also assessed through visually interpreted VHR satellite imagery.     

Satellite Remote Sensing Methods for Monitoring Archaeological Tells in the Middle East

Abstract

Using a variety of types of satellite imagery (SPOT, Corona, Landsat, and Quickbird) and concentrating on archaeological sites in the Egyptian floodplain, this paper proposes methods for monitoring the rate of archaeological site destruction in the Middle East. This image analysis shows how tells can be documented and monitored from computers anywhere in the world, emphasizing the multispectral capabilities and applications of satellites. The effects of population growth, looting, urban expansion, and war on archaeological sites in Egypt are reviewed, and a system is proposed to record sites by focusing on their individual spectral profiles. The analysis demonstrates how satellite imagery analysis can be applied to similar flood plain environments in Israel, Jordan, Syria, Turkey, Iran, Afghanistan, and Iraq.     

An Integrated Survey of Roman Urbanization at Potentia,Central Italy

Abstract

Our research contributes to the study of Roman urbanization in the Italian peninsula, both in the central Adriatic area and beyond. It focuses on the integrated use of archaeological field methods and non-destructive techniques. The study of the urban layout of the city of Potentia is an example of the use of low altitude aerial detection combined with regular grid-walking and geophysical survey to intensively investigate abandoned classical town sites. Information can be combined in a new approach to the study of urbanization processes in the heartland of the Roman world, and this integrated methodology can be applied to any large archaeological site with regular patterning such as orthogonal street layouts and planned civic centers.     

Mapping Submerged Archaeological Sites using Stereo‐Vision Photogrammetry

Creating photo‐mosaics and plans of submerged archaeological sites quickly, cost‐effectively and, most importantly, to a high level of geometric accuracy remains a huge challenge in underwater archaeology. This paper describes a system that takes geo‐referenced stereo imagery from a diver‐propelled platform and combines it with mapping techniques widely used in the field of robotic science to create high‐resolution 2D photo‐mosaics and detailed 3D textured models of submerged archaeological features. The system was field tested on the submerged Bronze Age town of Pavlopetri off the coast of Laconia, Greece, in 2010. This paper outlines the equipment used, data collection in the field, image processing and visualization methodology.     

A multidisciplinary approach to reconstructing Late Glacial and Early Holocene landscapes

Understanding palaeotopographical variability forms the basis for understanding prehistoric societies. Alluvial and lacustrine environments, in particular, are key areas with both a high archaeological and palaeoecological potential. However, the often deep stratification of these sites, the high water table and the complex sedimentological variations can hamper a detailed reconstruction of the spatial relationship between prehistoric settlement and their environment. Combining different remote and proximal sensing techniques and coring data, can offer detailed insight into such landscapes. More specifically, the integration of mobile geophysical methods allows the collection of unprecedented continuous information on large-scale palaeolandscape variability. In this study we present a combined approach in order to map and model prehistoric landscapes and river systems in and around a Late Glacial palaeolake in north-western Belgium. Based on filtered and unfiltered digital elevation models, a survey area of 60 ha was selected, in which detailed mobile multi-receiver electromagnetic induction survey was conducted. The results allowed for the delineation of palaeochannels in the area and enabled modelling the depth of these features in the survey area, providing insight into their flow characteristics. ¹⁴C sampling enabled the dating of the evolving river system to the transition between the Late Glacial and the Early Holocene. Through additional coring, this river system could be traced further through the palaeolake area. Based on these results a detailed reconstruction was made of the palaeotopography that harboured the Final Palaeolithic and Early Mesolithic occupation of the study site.     

Landscapes of the Battle of the Bulge: WW2 Field Fortifications in the Ardennes Forests of Belgium

Abstract

This paper presents the results of a reconnaissance survey of battlefield archaeological features that are associated with the early stages of the German Ardennes offensive in December 1944, and which have been well-preserved in the post-war forests in the St. Vith–Schöenberg area of eastern Belgium. Field survey of the location, plan-form dimensions, (unexcavated) surface relief and orientation of forest-floor earthworks over a total area of ca. 1.4 km² has recorded 116 discrete and well preserved features that have been provisionally assigned to a threefold typology encompassing large emplacements, rectilinear entrenchments and circular and sub-circular entrenchments/shell craters. The form and disposition of these remains are considered in the context of field fortification doctrine, documented accounts of combat in the area and the terrain and landscape setting. It is to be hoped that the work will stimulate a wider awareness of the value of recording and managing the region's WW2 battlefield heritage in the face of future development pressures, and especially the immediate threat posed by mechanised forestry operations.     

Museum salvage: A case study of Mesoamerican artifacts in museum collections and on the antiquities market

Abstract

Museum salvage refers to critical studies of museum collections with little or no provenience information that seek to glean useful archaeological information from these artifacts and examine the nature of their origins and possible connections to the illicit antiquities trade and the art market. Our case study focuses on artifacts from Mesoamerica and objects from the ancient capital of Teotihuacan in particular. We take a multi-scalar approach, including a quantitative analysis of Sotheby’s auction records for Mesoamerican items from 1966 to 2010, a survey of Teotihuacan attributed items in U.S. museums, and a more detailed examination of Teotihuacan-style artifacts in the Denver Museum of Nature & Science collections. The study tracks and attempts to explain diachronic patterns in the Mesoamerican antiquities trade, connections to museum collecting practices, and looting behavior. The study illustrates the potential benefits of museum salvage, while also revealing the clear limitations of research on poorly documented archaeological material.     

Archaeology and conservation at Herculaneum: from the Maiuri campaign to the Herculaneum Conservation Project

Abstract

This article looks at two periods in the history of the archaeological site of Herculaneum (Italy) and the role of the archaeologist there. Amedeo Maiuri was in charge of the first major excavation campaign that uncovered the site from 1927 to 1961, but was also responsible for the site's restoration, presentation and maintenance. Much can be learnt from his approach, particularly with regard to site management – a fixed team of specialists continuously cared for the site – and his creation of what was effectively an open-air museum. The second example looks at the author's experiences with the Herculaneum Conservation Project, where the emphasis is on conservation interventions rather than excavation, but where the archaeologist has an important role in the conservation team and also has the opportunity to make new archaeological discoveries. The article concludes that the role of the archaeologist must evolve to include a professional responsibility for archaeological heritage that extends beyond its excavation.     

Integrating LiDAR data and conventional mapping of the Fort Center site in south-central Florida: A comparative approach

Abstract

Publicly available LiDAR (Light Detection and Ranging) data provide a potential windfall for archaeologists, permitting the creation of detailed topographic site maps with little more than an internet-connected computer and appropriate software. The quality of these LiDAR data for site mapping is variable, however, and may need to be supplemented with data obtained from conventional mapping techniques. We share insights from recent mapping of the Fort Center site (8GL13) in southern Florida. Specifically, we suggest a method—based on trial and error—for integrating LiDAR and total station survey data. We compare the results of our work with previous efforts at mapping the site based solely on conventional archaeological survey methods, as well as with results based on LiDAR data alone. We conclude that our combination of LiDAR data, corrected by conventional survey data, produces the most accurate map.