Asinan
José Manuel Costa García (relator)
Resumo
The number of archaeological sites related with the Roman military presence in Northwest Iberia has exponentially grown since the beginning of the 21th century. This phenomenon can be largely related to the increasing popularity of remote sensing techniques such as aerial photography, satellite imagery and, more recently, the use of airborne LiDAR datasets to obtain high resolution DEMs. However, Roman military settlements are frequently characterised by the perishable nature of their structures and the scarcity of the material culture in these sites. The marching camps (castra aestiva) constitute the best example of this situation. Since these sites are almost invisible in the modern landscape, the use of remote sensing techniques and data for their detection and analysis has become vital for their study. In this paper, we will broaden the use of these tools and resources to retrospectively monitor the changes in the landscape which could have affected the preservation of these sites. Even if we can detect some natural processes in this development, the number of anthropogenic agents (ploughing, forestation, building of infrastructures…) has grown in the last decades. The use different series of aerial and satellite ortophotographs, ad hoc photogrammetry and LiDAR coverage can help us to trace those factors and to better assess the degree of preservation of this sites from a diachronic perspective. Moreover, the use of these datasets as risk estimation tools also contributes to the development of more comprehensive Cultural Heritage management policies, mitigation and prevention measures.
Palabras chave
Roman camps. Remote sensing. Risk monitoring. Cultural Heritage Resources Management (CHRM). Northwest Iberia.