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Il s\u2019agit de la base de données des agglomérations de\nl\u2019Afrique de l\u2019Ouest, tirée de la grande base d\u2019Africapolis portant sur\nl\u2019ensemble du territoire africain. C\u2019est une base de données standardisée et\ngéospatiale indispensable sur la dynamique de l'urbanisation en Afrique, dans\nle but de rendre les données urbaines en Afrique comparables d'un pays à\nl'autre et dans le temps. Cette base de données sur les agglomérations de\nl\u2019Afrique de l\u2019Ouest concerne les petites villes et villes intermédiaires entre\n10 000 et 300 000 habitants. Cependant, la base d\u2019Africapolis n\u2019intègre\npas certaines villes et villages de moins de 10 000 habitants, qui peuvent\nnéanmoins constituer des zones de bâti non négligeables pour caractériser\nl\u2019organisation et les dynamiques d\u2019extension urbaine du littoral de l\u2019Afrique\nde l\u2019ouest. Sur l\u2019ensemble des 11 pays de la MOLOA, 271 agglomérations ont été\najoutées dans le buffer de 25 km par rapport au trait de côte, qui a été élargi\npour le Sénégal, la Gambie et la Guinée Bissau le long des fleuves Gambie,\nGambie et Rio Cacheu. Ces agglomérations correspondent à des villages\nprésentant une densité de bâti qui le rend identifiable en parcourant les\nimages à la volée. L\u2019identification sur les images à très haute résolution\ns\u2019est concentrée sur les villages se trouvant sur la côte, dans les zones de\nmangrove, sur les bras des principaux fleuves, ou encore les villages\nsatellites des agglomérations. On a aussi cherché à identifier tous les noyaux carrefours\ndes principales voies de communication, en croisant les images à haute\nrésolution et la couche vectorisée et hiérarchisée du réseau routier de la\nrégion. <\/font><\/span><\/p>

<\/p>

Limites ou contraintes : <\/span><\/b>Pas d\u2019informations<\/span><\/font><\/p>\n\n

Projections cartographiques : <\/span><\/b>WGS\n1984<\/span><\/font><\/p>\n\n

Liens en rapport avec les données : <\/font><\/span><\/b><\/p>\n\n

Éclairer les politiques pour\nl'avenir urbain de l'Afrique : <\/span>https://www.africapolis.org/home<\/span><\/a><\/span> <\/span><\/font><\/p>\n\n

Attributs<\/span><\/b><\/font><\/p>\n\n

ID<\/span><\/b> : Identifiant unique des agglomérations<\/span><\/font><\/p>\n\n

NOM<\/span><\/b> : Nom de l\u2019agglomération<\/span><\/font><\/p>\n\n

PAYS<\/span><\/b> : Nom du pays dans lequel se trouve l\u2019agglomération<\/span><\/font><\/p>\n\n

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