{"id":21577,"date":"2026-07-10T16:52:32","date_gmt":"2026-07-10T14:52:32","guid":{"rendered":"https:\/\/ngi.be\/?page_id=21577"},"modified":"2026-08-06T12:00:46","modified_gmt":"2026-08-06T10:00:46","slug":"lambert-2008","status":"publish","type":"page","link":"https:\/\/ngi.be\/fr\/offre\/les-services\/services-geodesiques\/systemes-de-coordonnees-belges\/lambert-2008\/","title":{"rendered":"Lambert 2008"},"content":{"rendered":"

Contexte et mise en place<\/strong><\/p>\n

Le Lambert 2008 est le syst\u00e8me de coordonn\u00e9es le plus r\u00e9cent pour la Belgique. Il a \u00e9t\u00e9 introduit afin de rem\u00e9dier aux limitations des anciens syst\u00e8mes nationaux, dans un contexte o\u00f9 la technologie de navigation par satellite (GNSS) avait pris une place centrale dans la g\u00e9od\u00e9sie et la cartographie.<\/p>\n

Une caract\u00e9ristique fondamentale du Lambert 2008 est son raccordement direct \u00e0 l\u2019ellipso\u00efde GRS80, le m\u00eame ellipso\u00efde utilis\u00e9 par les syst\u00e8mes GNSS. Le syst\u00e8me de coordonn\u00e9es \u00e9vite ainsi les transformations complexes de coordonn\u00e9es et les pertes de pr\u00e9cision qui y sont associ\u00e9es pour les positions d\u00e9termin\u00e9es par GNSS. En outre, le Lambert 2008 s\u2019aligne parfaitement sur le syst\u00e8me de r\u00e9f\u00e9rence europ\u00e9en ETRS89 et les syst\u00e8mes de r\u00e9f\u00e9rence mondiaux tel qu\u2019ITRS.<\/p>\n

Applications <\/strong><\/p>\n

Le Lambert 2008 est progressivement devenu la nouvelle norme pour les applications g\u00e9ographiques actuelles en Belgique. Le syst\u00e8me est notamment utilis\u00e9 pour les nouveaux projets cartographiques et bases de donn\u00e9es, les campagnes de mesure modernes et les lev\u00e9s de terrain et les applications n\u00e9cessitant un positionnement en temps r\u00e9el ou de tr\u00e8s haute pr\u00e9cision.<\/p>\n

\u00c0 mesure que les anciens syst\u00e8mes tels que le Lambert 1950<\/a> et le Lambert 1972<\/a> sont abandonn\u00e9s, le Lambert 2008 deviendra la r\u00e9f\u00e9rence pour les donn\u00e9es g\u00e9ographiques actuelles et futures. Le Lambert 2008 respecte les directives europ\u00e9ennes pour les donn\u00e9es spatiales INSPIRE et garantit donc une utilisation compatible des donn\u00e9es spatiales provenant des diff\u00e9rents \u00c9tats membres.<\/p>\n

Conversion \u00e0 partir d\u2019anciens syst\u00e8mes de coordonn\u00e9es<\/strong><\/p>\n

Les jeux de donn\u00e9es historiques \u00e9tablis en Lambert 1950<\/a> et en Lambert 1972<\/a> conservent leur valeur pour des applications et des contextes sp\u00e9cifiques. Ils peuvent \u00eatre convertis en Lambert 2008 en utilisant des m\u00e9thodes de transformation fiables. Ainsi, les anciens plans, cartes et bases de donn\u00e9es peuvent \u00eatre combin\u00e9s avec des mesures r\u00e9centes, sans perte d\u2019utilit\u00e9 ou de pr\u00e9cision.<\/p>\n

Un aper\u00e7u des m\u00e9thodes et outils disponibles se trouve sur la page \u00ab Transformation entre syst\u00e8mes de coordonn\u00e9es<\/a> \u00bb.<\/p>\n

\"\"<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Contexte et mise en place Le Lambert 2008 est le syst\u00e8me de coordonn\u00e9es le plus r\u00e9cent pour la Belgique. Il a \u00e9t\u00e9 introduit afin de rem\u00e9dier aux limitations des anciens syst\u00e8mes nationaux, dans un contexte o\u00f9 la technologie de navigation par satellite (GNSS) avait pris une place centrale dans la g\u00e9od\u00e9sie et la cartographie. Une…<\/p>\n","protected":false},"author":19,"featured_media":0,"parent":21561,"menu_order":22,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-21577","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nLambert 2008 - IGN<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ngi.be\/fr\/offre\/les-services\/services-geodesiques\/systemes-de-coordonnees-belges\/lambert-2008\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lambert 2008 - IGN\" \/>\n<meta property=\"og:description\" content=\"Contexte et mise en place Le Lambert 2008 est le syst\u00e8me de coordonn\u00e9es le plus r\u00e9cent pour la Belgique. 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