Paleo-hidrography of the Danube and the Roman Brigetio, NW-Hungary
The purpose of our research is the hydrographical-geomorphological reconstruction of the Brigetio area of the Ripa Pannonica (limes) - based on geomorphological research, GIS analysis and archeological sources.
What might be the reason for the area’s relatively short inhabitability? What were the advantages that brought Romans here, what factors made their settling possible at that time, and why exactly at that time? Why has the area become uninhabited later?
The camp and the settlement of Brigetio were bordered by the Danube on the north and by an abandoned river subchannel on the south. Colonization of the former island could only begin after the deposition of Late Atlantic and Subboreal sediments. During the Early Subatlantic (Late Iron Age and the first two centuries of the Roman imperial period) levees in the direct vicinity of the Danube have been already inhabitable, as a result of dominantly lower and decreasing water levels (due to drier climate).
The settlement was built on the topgrounds of the island on the Danube’s higher floodplain only on the wider levees and their remnants. The palaeo-Danube subchannel bordering the former island has already begun to filled up as a result of floodwaters overflow above the sediment plugs and between the leveés. Data from our drillings and sediment profiles prove that 2/3 of the channel depth has already been filled with fine sediments: The Roman road crossing the channel (road pavement) was built on this basement.