Geophysical prospection at Portus: an evaluation of an integrated approach to interpreting subsurface archaeological features


Ogden, Jessica, Strutt, Kristian, Keay, Simon, Earl, Graeme and Kay, Stephen (2010) Geophysical prospection at Portus: an evaluation of an integrated approach to interpreting subsurface archaeological features. In, Proceedings of the 37th Computer Applications to Archaeology Conference (CAA 2009). 37th Computer Applications to Archaeology Conference (CAA 2009) Williamsburg, US, Colonial Williamsburg Foundation, 1-17.

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Description/Abstract

Portus, located just north of the Tiber River, Italy, was the port of ancient Rome during the imperial period.
The Portus Project is a current project funded by the Arts and Humanities Research Council (AHRC) in collaboration with the Soprintendenza per i Beni Archeologici di Ostia e Porto, and the Universities of Southampton and Cambridge, and is a flagship project of the British School at Rome (BSR). Extensive and intensive geophysical prospection has been employed at Portus within recent years, providing an integrated methodology for discerning the nature and extent of the archaeological remains of the port complex. Recent excavations have allowed for a reciprocal relationship between geophysical and archaeological research, and have paved the way for a regime of meaningful, integrated geophysical research at Portus. Increasingly, archaeogeophysicists have begun to take an integrated approach to the use of multiple survey methods to investigate potential archaeological features. Here, many types of geophysical and archaeological survey methods have been employed, including magnetometry, electrical resistance, ground-penetrating radar, standing building, and micro-topographic survey, to survey the archaeological record, provide an immense volume of data to be compared and contrasted to the excavation data, and facilitate the interpretation of the archaeology at the site. Often when a multi-method approach is taken, the interpretations, analysis, and presentation of the resulting data is limited to side-by-side comparisons of gray-scaled graphical representations of the data. A distinction is made here between integrated survey methodologies and integrated data analysis. Recent developments in geophysical data analysis have suggested that in addition to a multi-method approach, data fusion techniques can offer meaningful insights into archaeological features and allow researchers to establish patterns between multivariate data sets that might otherwise go unnoticed. (Kvamme 2006a, 2006b, Neubauer et al. 1997, 2002, Piro et al. 2000) The sheer quantity of data, as well as the nature of the archaeology at Portus, have provided an ideal site for the exploration of spatial data and remote-sensing analysis techniques, as well as the assessment of their utility within archaeo-geophysical research as whole. This research attempts to critically assess the field and data processing methodologies used and examine the applicability of a variety of mathematical and multivariate analysis approaches to the prospection results at Portus.

Item Type: Book Section
Related URLs:
Keywords: geophysical prospection, quantitative methods, integration, gis, survey
Subjects: C Auxiliary Sciences of History > CC Archaeology
G Geography. Anthropology. Recreation > GB Physical geography
Divisions: Faculty of Humanities > Archaeology
ePrint ID: 341590
Date Deposited: 30 Jul 2012 11:27
Last Modified: 14 Apr 2014 11:44
Projects:
The Portus Project
Funded by: AHRC (AH/E509517/1)
Led by: Simon James Keay
1 March 2007 to 1 April 2011
URI: http://eprints.soton.ac.uk/id/eprint/341590

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