Geographic data sources

iZAO uses GeoNames settlement names, aliases, public place centres and administrative context under CC BY 4.0. Public place centres are approximate locality references.

Reviewed city and neighbourhood relationships also use © OpenStreetMap contributors, ODbL, Who’s On First (licences and underlying source credits), and Julia Clark’s Mapping Municipal Change in Tunisia (2021, approximate 2018 municipal boundaries, ODbL). Other supporting references include Cabo Verde INE’s RGPH2021 census, municipal and government publications, UNHCR and UN-Habitat. Each reviewed record links its evidence.

The reviewed organisation layer is available as machine-readable data under ODbL 1.0. Original source attribution and licences continue to apply. Reviewed classifications and coordinate corrections retain the original source identity. Unverified or invalid source records are recorded explicitly and withheld from selection.

Sources des données géographiques

iZAO utilise les noms, variantes, centres approximatifs et informations administratives de GeoNames sous licence CC BY 4.0. Les liens entre villes et quartiers sont vérifiés avec les sources indiquées ci-dessus. Les limites municipales tunisiennes de Julia Clark sont des approximations. Le fichier téléchargeable contient les références, corrections et exclusions, sous licence ODbL 1.0, avec les licences et attributions des sources originales.

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