Diachronic analysis of the Paris urban area: a geomatic approach
ALPAGE is a geohistorical platform about Paris. Based on a work dynamic initiated in 2006 with support from the French National Research Agency (ANR)this work then continued on beyond the funded phase (2006-2010). The initial project brought together twenty researchers in Social and Human Sciences and in Information and Communication Technology. Coordinated by Hélène Noizet (LAMOP member), these historians, geomaticians and computer scientists have laid the foundations of a Geographic Information System (GIS) of the pre-industrial Parisian area. The spatial reference data, produced for the beginning of the 19th century and for the medieval period, have been made freely available online on a webmapping platform and is also usually available for download. The associated metadata allows identification of the sources and authors of the data.
The initial group, which was founded on an association of 4 research laboratories and on the collaboration of many other partners, has transformed into a network of researchers and students working on the history of Paris without dedicated funding. This work is enriched regularly by contributions from researchers of different backgrounds allowing for an enlargement of themes and periods. Each contributor creates new geohistorical data of Paris based on their own personal interest. The website and webmapping platform are updated once or twice a year and validated by the administrators (Hélène Noizet, Laurent Costa, Eric Grosso) and/or the editors of each thematic group (Boris Bove and Sandrine Robert). The group is open to anyone who has questions of a spatial nature regarding the history of Paris.
A considerable amount of data has been produced not only on the medieval period but also on the modern period and on the 19th century. As regards to the geographical scale of the project, which remains limited to Paris, a partnership with the programme Archéologies du Bassin Parisien of the UMR 7041 ArScAn has enabled access to geohistorical frameworks across the Parisian basin.
Finally, in addition to the webmapping platform, the ALPAGE group has published a book (Paris de parcelles en pixels) and a plan of Paris dated beginning of the 19th century available in A1 and A2 formats (ALPAGE-Vasserot plan).