Geo-archaeological study of the territory of Burnum’s Roman site (Croatia) through LANDSAT multi-temporal satellite images and high resolution GeoEye

Abstract

The object area of the study was analysed with a geographical and geo-archaeological approach, integrating the data by using geomatic techniques (Satellite Remote Sensing and Geographical Information System). The processing of the data of the high resolution Satellite images allowed us to discover that in the karst environment, like the one in which Burnum was established, the areas with a higher humidity and vegetation concentration are the results of the anthropic action due to frequentation in the Roman Age. The infrastructure and buildings, the earth moving conducted to raise the original natural surface levels, and the subsequent collapse of buildings during the stage when the site was abandoned, determined the formation of a significant substrate in the area. Thanks to the results of the surveys and data, the positive responses of the image analysis through the Band Ratio and the enhancement procedures highlighted the differences in the soil’s patterns/weaving. This method of investigation, the results of which will be verified by carrying out targeted surveys, suggests the presence of residential infrastructure (canabae) in the area surrounding the Roman site and especially along the main roads. Therefore, the archaeological site of Burnum, today corresponding to approximately 8 ha, could be doubled, adding even further to the importance of the role that the city had in this part of the Roman province of Dalmatia.