AEROFOTOGRAMETRIA COMO SUBSÍDIO PARA RECONSTITUIÇÃO DO FORTE DO BONSUCESSO, PORTO CALVO, ALAGOAS, SOB A MALHA URBANA

The former Village of Bonsucesso, during the Dutch occupation played a prominent role as a strategic position in the control of land transit between the Northern Captaincies and the general government's head office in Bahia. The forts and strongholds represented the indelible mark of successive conquests, flag exchanges, coerce and sacks. And, above all, they represented the chance of a reoccupation by troops. So when the Dutch retired to Recife, the villagers took care of razing, destroying those symbols of war. They erased from the village the traces of conquest and its defense. But those marks were not restricted to their architectural structures; they had already dictated, at least in part, the conformation of the city, leaving, finally, its archaeological record, capable of allowing the reconstitution, even if partial of its defense system. The archaeological prospection carried out initially at the top of the city of Porto Calvo, revealed the potential of its layers that show old areas of occupation, traces of war, of its former population. But it wasn't just records in the remaining layers. As we could see in Penedo, a city that, like Porto Calvo, developed around Fort Mauritius, where the immediate urban network preserved the layout of its defense structures. The well-known cartographic documentation reveals the forms and distribution of the structures of Fort Bonsucesso; allows a first view of what can be sought. Initially, as it was studied in Penedo, it was decided to overlap the contemporary cartography to the plant of the city, from recognized points, obtaining a first approximation. In a second stage, georeferenced aerial images were obtained and digital models of elevation and orthophotomosaic were generated. These products, suitable for photointerpretation, were properly evaluated in terms of the iconography of the time. The study, still in progress, already allows a safe approximation of the main fortified point, its real dimensions and shape, which left its marks on the layout of the streets of Porto Calvo