- Dernière mise à jour
- 26 mars 2024
- Conditions d'utilisation
-
- Organisation
- EnviDat: le portail de données environnementales
- Format
- SERVICE
Description
Indicator 11a describes the change in the length of watercourses in Switzerland between different points in time. The changes are systematically recorded on the basis of the changes in the national maps 1:25,000, later Vector25 and from about 2012 using TLM3D. With this evaluation protocol (2022), the sampling procedure of "Landschaft unter Druck" is used for the last time. It consists of 152 sampling rectangles in which the changes are recorded and extrapolated to the whole of Switzerland. From TLM3D (2020) onwards, the extrapolation is guaranteed for the entire area of Switzerland.
Informations complémentaires
- Identifier
- labes.3989c431-0da1-4f0f-ae38-0052dd0d5b59
- Date de publication
- 6 février 2023
- Date de modification
- 26 mars 2024
- Langues
- Anglais
- URL d'accès
- https://www.envidat.ch/dataset/labes/resource/3989c431-0da1-4f0f-ae38-0052dd0d5b59
- Taille du fichier
- 83.7 MB
- Format
- SERVICE
- Documentation
-
