The Eurmet (Expansion Urbaine des Métropoles du Sud-ouest Européen - Urban Sprawl of Major Cities in South West Europe) project aims at characterizing the outskirts of ten major cities located in three countries of South West Europe: Barcelona, Madrid, Sevilla and Valencia in Spain ; Bordeaux, Clermont-Ferrand, Montpellier and Toulouse in France ; Lisbon and Porto in Portugal. Besides the definiti ...