Backward engineering historical maps: the update of the open hydrography dataset of napoleonic cartography

Since 2019, the LAD team has been working on the digitisation of the Carte topo- graphique de l’Égypte through a GIS platform. The data contained in this historical cartog- raphy, published in the early years 1800s, play a key role in research on the ancient Egyptian landscape, yet they show a still image from the late 1700s. Taking a step towards a Linked Open Data (LOD), this paper illustrates the work of updating the already published dataset of the hydrography of Napoleonic cartography by the LAD team, to which new information useful for the study of the Ancient Egyptian landscape will also be added.