Abstract
Abstract. The experience on a 10-11th century AD cargo of amphoras of the shipwreck of Cape Stoba, in the island of Mljet, in Croatia could be considered an important example to describe the progress of documentation and survey on a shipwreck. In the first part of the paper, we describe some of the used feasible methods of documentation and their advantages and disadvantages. In the second part, we introduce the three-dimensional reconstruction of the items recovered during the archaeological excavation and how these elements could be integrated to the different types of documentation: bi-dimensional plans, three-dimensional coordinates and multi-image photogrammetry.3D reconstruction allows to decrease and optimize time and work during the excavation and to obtain a complete range of data for post-excavation study, permitting to better document, represent and investigate the position of the cargo. Furthermore, 3D modelling offers an attractive display for the public, who can better appreciate cultural heritage and archaeological evidence.
Highlights
Documentation and survey of archaeological sites, both underwater and terrestrial, have gone through an evident and clear change in the last two decades (Balletti et al, 2016)
The 3D documentation allows a better perception of the site, above all in difficult contexts where the archaeological subject is not on the same level or is teeming with details
Underwater, for hyperbaric reasons, diving time is limited by depth and in deep sites, it is more reduced than in shallow water: for example around 40 m, diving time is only 18 minutes and around 28 m it is extended to 35 minutes
Summary
Documentation and survey of archaeological sites, both underwater and terrestrial, have gone through an evident and clear change in the last two decades (Balletti et al, 2016). Underwater, for hyperbaric reasons, diving time is limited by depth and in deep sites, it is more reduced than in shallow water: for example around 40 m, diving time is only 18 minutes and around 28 m it is extended to 35 minutes In these contexts, the survey and documentation activities have to be fast and precise. Every archaeological site and every different study require a specific technology; first, archaeologists have to analyze the object and the context of excavation, they have to know the economic possibility and the project timing After this kind of evaluation it is possible to understand the appropriate recording technology and the appropriate representation and format of the results (Gonizzi et al, 2014). These mainly belong to the legs of the grid used for the trilateration during the first three years survey, that have remained still for all the campaigns
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