German Thuringia Elevation Models
Introduction
The elevation model of the German Bundesland of Thuringia (Thüringen) is a digital terrain model produced from data originally obtained from the open geodata of the Free State of Thuringia. It is produced and delivered by the Thüringer Landesamt für Bodenmanagement und Geoinformation. Two elevation models are delivered with windPRO: one at 5m resolution and one at 25m resolution. The original models are available at a maximum resolution of 1m and 2m, however, the highest resolution model in windPRO version is resampled by EMD to obtain a slightly coarser resolution - 5m. This is done in order for the data to be operational for the larger domains needed in the context of wind farm analysis’ and wind flow modelling. The resampling is made based on 2m data using a bi-linear interpolation algorithm. Data made available by EMD represents the data status of October 2019.
Dataset Overview
- Spatial Coverage: Bundesland of Thuringia
- Resolution: 5m and 25m (in windPRO)
- Data-type: Digital Terrain Model (DTM)
- Coordinate system
- Horizontal: ETRS89/UTM33 (EPSG 25832)
- Vertical: DHHN2016 (EPSG 7837) - Deutsche Haupthöhennetz 2016
- Version: Data were downloaded in october 2019. Data originates from years 2008-2019, dependent on area (see map to the right).
- Accuracy:
- Vertical: For the 2m resolution dataset the vertical accuracy is stated to be ±0.15m-0.30m
- Horizontal: For the 2m resolution the horizontal accuracy is ±0.5m (given as a 95% confidence, 2 sigma)
Availability from within WindPRO
The data are available directly from within windPRO in 5-meter and 25-meter grid resolution. Please note that for the 5-meter grid - the downloaded area is limited to 10 km x 10 km to keep the files at a usable size. The data within the elevation object may be extended with coarser data if a bigger area if needed. The data can be accessed from the online-services in the following objects:
- Line Object (with purpose to height contour lines)
- Elevation Grid Object
License and Attribution
The data is based on open geo-data of the Bundesland of Saxony, licensed under the "Data license Germany – attribution – version 2.0" (Datenlizenz Deutschland - Namensnennung - Version 2.0 - dl-de/by-2-0).
When using the dataset, the user must ensure that the source note contains the following information:
EMD/windPRO elevation model. Based on elevation data from GeoSN, Data license Germany – attribution – version 2.0
Acknowledgement
- The GeoSN are thanked for producing this digital elevation dataset – and disseminating it in the public domain and thus for aiding the development of renewable energy and wind energy in particular.
- Integration of this dataset into EMD services - was co-supported through the InnoWind project (www.innowind.dk) - which is co-funded by the Danish Innovation Fund
External Links
- Site with description of the elevation model (in German language): https://www.geodaten.sachsen.de/
- InnoWind project: http://www.innowind.dk