2,637 research outputs found

    Automated detection of archaeological mounds using machine-learning classification of multisensor and multitemporal satellite data.

    Get PDF
    This paper presents an innovative multisensor, multitemporal machine-learning approach using remote sensing big data for the detection of archaeological mounds in Cholistan (Pakistan). The Cholistan Desert presents one of the largest concentrations of Indus Civilization sites (from ca 3300 to 1500 BC). Cholistan has figured prominently in theories about changes in water availability, the rise and decline of the Indus Civilization, and the transformation of fertile monsoonal alluvial plains into an extremely arid margin. This paper implements a multisensor, multitemporal machine-learning approach for the remote detection of archaeological mounds. A classifier algorithm that employs a large-scale collection of synthetic-aperture radar and multispectral images has been implemented in Google Earth Engine, resulting in an accurate probability map for mound-like signatures across an area that covers ca 36,000 km2 The results show that the area presents many more archaeological mounds than previously recorded, extending south and east into the desert, which has major implications for understanding the archaeological significance of the region. The detection of small (30 ha) suggests that there were continuous shifts in settlement location. These shifts are likely to reflect responses to a dynamic and changing hydrological network and the influence of the progressive northward advance of the desert in a long-term process that culminated in the abandonment of much of the settled area during the Late Harappan period.ER

    Mass-Market Receiver for Static Positioning: Tests and Statistical Analyses

    Get PDF
    Nowadays, there are several low cost GPS receivers able to provide both pseudorange and carrier phase measurements in the L1band, that allow to have good realtime performances in outdoor condition. The present paper describes a set of dedicated tests in order to evaluate the positioning accuracy in static conditions. The quality of the pseudorange and the carrier phase measurements let hope for interesting results. The use of such kind of receiver could be extended to a large number of professional applications, like engineering fields: survey, georeferencing, monitoring, cadastral mapping and cadastral road. In this work, the receivers performance is verified considering a single frequency solution trying to fix the phase ambiguity, when possible. Different solutions are defined: code, float and fix solutions. In order to solve the phase ambiguities different methods are considered. Each test performed is statistically analyzed, highlighting the effects of different factors on precision and accurac

    Do the interactions between astronomy and religion, beginning in prehistory, form a distinct religious tradition?

    Get PDF
    Astronomy and religion have long been intertwined with their interactions resembling a symbiotic relationship since prehistoric times. Building on existing archaeological research, this study asks: do the interactions between astronomy and religion, beginning from prehistory, form a distinct religious tradition? Prior research exploring the prehistoric origins of religion has unearthed evidence suggesting the influence of star worship and night sky observation in the development of religious sects, beliefs and practices. However, there does not yet exist a historiography dedicated to outlining why astronomy and religion mutually developed, nor has there been a proposal set forth asserting that these interactions constitute a religious tradition; proposed herein as the Astronic tradition, or Astronicism. This paper pursues the objective of arguing for the Astronic tradition to be treated, firstly, as a distinct religious tradition and secondly, as the oldest archaeologically-verifiable religious tradition. To achieve this, the study will adopt a multidisciplinary approach involving archaeology, anthropology, geography, psychology, mythology, archaeoastronomy and comparative religion. After proposing six characteristics inherent to a religious tradition, the paper will assemble a historiography for astronomical religion. As a consequence of the main objective, this study also asserts that astronomical religion, most likely astrolatry, has its origins in the Upper Palaeolithic period of the Stone Age based on specimens from the archaeological record. The assertion is made that astrolatry is the original religion and fulfils the Urreligion theory. To end, the proposed characteristics of a religious tradition will be applied to Astronicism to ultimately determine whether it is a valid tradition that can stand alongside the established Abrahamic, Dharmic and Taoic traditions

    Extra-terrestrial Methods: Towards an ethnography of the ISS

    Get PDF
    The anthropological study of extraterrestrial settings might seem novel and exotic. However, this chapter proposes that the methodological tool kit available to social scientists for the empirical study of multi-sited, distributed, and space-age research contexts has a well-established genealogy, informed and developed by recent innovations in the ethnographic study of social media and their attendant communities. The International Space Station (ISS) is the longest-lasting extant extraterrestrial society in Low Earth Orbit. As it is a place of dwelling, not just scientific discovery, any anthropological study of the ISS must focus on the quotidian and material dimensions of the ISS and its bodily and material techniques, re-examining traditional empirical assumptions within the innovative conditions of new polymedia environments in which the ISS is situated. A central element in the question of an extraterrestrial methodology is the means by which various forms of terrestrial and extraterrestrial attunement converge to produce novel realm of human habitation and its expanded and expanding ‘field’ of co-presence

    Towards a satellite system for archaeology? Simulation of an optical satellite mission with ideal spatial and temporal resolution, illustrated by a case study in Scotland

    Get PDF
    Applications of remote sensing data for archaeology rely heavily on repurposed data, which carry inherent limitations in their suitability to help address archaeological questions. Through a case study framed around archaeological imperatives in a Scottish context, this work investigates the potential for existing satellite systems to provide remote sensing data that meet defined specifications for archaeological prospection, considering both spatial and temporal resolution, concluding that the availability of commercial data is currently insufficient. Tasking a commercial constellation of 12 spacecraft to collect images of a 150 km 2 region in Scotland through the month of July 2020 provided 26 images with less than 50% cloud cover. Following an analysis of existing systems, this paper presents a high-level mission architecture for a bespoke satellite system designed from an archaeological specification. This study focuses on orbit design and the number of spacecraft needed to meet the spatial and temporal resolution requirements for archaeological site detection and monitoring in a case study of Scotland, using existing imaging technology. By exploring what an ideal scenario might look like from a satellite mission planning perspective, this paper presents a simulation analysis that foregrounds archaeological imperatives and specifies a satellite constellation design on that basis. High-level design suggests that a system of eight 100 kg spacecraft in a 581 km altitude orbit could provide coverage at a desired temporal and spatial resolution of two-weekly revisit and <1 m ground sampling distance, respectively. The potential for such a system to be more widely applied in regions of similar latitude and climate is discussed

    New trends In geomatics, in the era of low-cost sensors, free and open source software and HPC geoBigData infrastructures

    Get PDF
    Nowadays, the increasing availability of low-cost sensors, Free and Open Source Software and High Performance Computing infrastructures allows Geomatics to widen its application scope, by stimulating new challenging investigations related to the modeling of the observations provided by these new tools. In this review, some methodologies and applications, developed at the Geodesy and Geomatics Division (DICEA) of University of Rome \u201cLa Sapienza\u201d, are shortly presented. Directly related to the mentioned software and hardware new availability, they are already ready for industrial applications and hopefully can broaden the interaction between Geomatics and other scientific and technological disciplines

    D10.1 Report on the dissemination activities and Conference organisation

    Get PDF
    This deliverable provides an extensive analysis of the dissemination activities and workshops organisation of the EXCELSIOR H2020 Teaming Project. The analysis starts with the report on our participation in conferences (11) and how the project was promoted through it. Then, we explain about the participation of our team members in talks (17), workshops (7) and seminars (12) as invited speakers. The deliverable continues with a thorough presentation of the lectures by invited speakers (8), the webinar (1) and the workshops (2) organized by our team. Additionally, we document about our participation in other events (i.e., European Researcher’s Night 2021 and SpaceUPCyprus 2021 Live). The last chapter provides the publications, journal papers, conference papers, and book sections for the reporting time period. The deliverable concludes by providing information on the outcome of the reported activities and how they have contributed to the progress of the EXCELSIOR H2020 Teaming Project. It is concluded that there is a strong need to establish links in the EMMENA region and connect with them. This has not been achieved yet, but a strategy was prepared to raise awareness about the EXCELSIOR Project in the EMMENA region and establish partnerships, starting with targeted stakeholders’ workshop in autumn 2021, where selected stakeholders from the region will be invited to be informed them about the project and provide them the space to discuss their needs and identify common scientific interests and ways of collaboration

    Bulletin of the Massachusetts Archaeological Society, Vol. 60, No. 2

    Get PDF
    Editor’s Notes (Shirley Blancke) For Want of a Nail: An Analysis of the Function of Some Horseshoe or U -shaped Stone Structures (Edwin C. Ballard) Some Thoughts on the Nature of Archaeological Sites, and the Trend Towards a Holistic Approach as We Enter a New Millennium (Alan Leveillee) The Indians of the Merrimack Valley: An Introduction (David Stewart-Smith) Wheeler\u27s Surprise, New Braintree, Massachusetts excerpt from King Philip\u27s War: The History and Legacy of America\u27s Forgotten Conflict (Eric B. Schultz and Michael Tougias) An Unusual Patinated Flint Blade from North Plymouth, Massachusetts (Bernard A. Otto
    • …
    corecore