Mapping past land cover on Poitiers in 1993 at Very High Resolution using GEOBIA approach and open data

This dataset contains a land cover map of Poitiers in 1993 over an area of 225km².

The land cover map was achieved using aerial images of the French National Geographic Institute (IGN) and Landsat-5 TM images combined with remote sensing methods. Geographic Object-Based Image Analysis (GEOBIA) and Random Forest classifications produced a reliable land cover map at a 1m of spatial resolution.

Orthophotos produced as well as training and validating polygons to achieve the classifications were added into this dataset.

As land cover changes is crucial to land management, this map will help to understand changes from 1993 to now for urban, agricultural issues but also their impact on ecological processes. Data will be easily used in GIS applications for any users.

This work is part of the thesis of Elie Morin which was funded by la région Nouvelle-Aquitaine and Grand Poitiers Communauté urbaine, among others.