Assessing changes in urban flood vulnerability through mapping land use from historical information

摘要

This paper presents an appraisal of the temporal evolution of floodvulnerability of two French cities, Besan?on and Moissac, which werelargely impacted by floods in January?1910 and March?1930, respectively.Both flood events figure among the most significant events recorded inFrance during the 20th?century, in terms of certain parameters such asthe intensity and severity of the flood and spatial extension of the damage.An analysis of historical sources allows the mapping of land use andoccupation within the areas affected by the two floods, both in past andpresent contexts, providing an insight of the complexity of flood riskevolution at a local scale.