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Un Modèle Numérique de Terrain (MNT) est une représentation de l'altitude du sol d'une zone déterminée et exclut tous les éléments situés à la surface du sol (bâtiments, ponts, végétation, véhicules, etc.). Cette donnée raster fournit une information sur l'altitude du sol (Z) en tout point du territoire wallon. Il s'agit d'une couverture brute, non lissée.

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                    <gmx:Anchor xlink:href="http://data.europa.eu/eli/reg/2010/1089">RÈGLEMENT (UE) N o 1089/2010 DE LA COMMISSION du 23 novembre 2010 portant modalités d'application de la directive 2007/2/CE du Parlement européen et du Conseil en ce qui concerne l'interopérabilité des séries et des services de données géographiques</gmx:Anchor>
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                    <gmx:Anchor xlink:href="https://inspire.ec.europa.eu/id/document/tg/el">INSPIRE Data Specification on Elevation – Technical Guidelines 3.0</gmx:Anchor>
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Voici les différentes étapes principales de production :
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2) Traitement des nuages de points obtenus (ajustement des bandes de vol, filtrage des bruits parasites, classification des données sont décrits dans le rapport de production).
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