Surface representation and models
Themes
![](https://backend-geo-admin-ch.imgix.net/2022/12/16/a18c4a44-170a-45fa-943c-50cb106b92f1.png?rect=0%2C19%2C588%2C331&w=1024&auto=format)
Hydrography
Hydrographic elements, including marine areas and all other water bodies and items related to them, including river basins and sub-basins. Where appropriate, according to the definitions set out in Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy and in the form of networks.
![](https://backend-geo-admin-ch.imgix.net/2022/12/16/c3f2a00e-e5bb-4207-b11e-b69c172910dd.png?rect=0%2C19%2C588%2C331&w=1024&auto=format)
Elevation
Modèles numériques pour l'altitude des surfaces terrestres, glaciaires et océaniques. Comprend l'altitude terrestre, la bathymétrie et la ligne de rivage
![](https://backend-geo-admin-ch.imgix.net/2022/12/16/a959c837-c581-4e70-93dc-7ce1332dca6d.png?rect=0%2C19%2C588%2C331&w=1024&auto=format)
Land cover
The biophysical cover of the earth's surface, including artificial and agricultural areas, wood, natural (near-natural) areas, wetlands and waterbodies.
![](https://backend-geo-admin-ch.imgix.net/2022/12/16/ca720357-3d06-4cfd-ac78-85ac541f73f9.png?rect=0%2C19%2C588%2C331&w=1024&auto=format)
Orthoimagery
Données d'images géoréférencées de la surface terrestre provenant de capteurs satellitaires ou aéroportés.