Difference between revisions of "Czech Republic DTM"
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[[Image:CzechRepublic_DTM-Model.png|right|thumb|350px|Elevation model - 20m grid. Map showing coverage of the Czech Republic Digital Elevation Model.]] | [[Image:CzechRepublic_DTM-Model.png|right|thumb|350px|Elevation model - 20m grid. Map showing coverage of the Czech Republic Digital Elevation Model.]] | ||
== Introduction == | == Introduction == | ||
| − | The Czech Republic elevation model is a digital terrain model (DTM) produced from LIDAR data. The data in windPRO is sourced from Geoportal ČÚZK operated by the Czech Land Survey Office. The model in windPRO is derived from the INSPIRE compliant dataset - which were derived from the Digital Terrain Model of the Czech Republic – 4th generation (DMR 4G). The derived elevation models delivered with windPRO is at 5m and 20m resolution. Coverage is the whole of the Czech Republic. | + | The Czech Republic elevation model is a digital terrain model (DTM) produced from airborne laser scanning (LIDAR) data obtained in years 2009-2014. The data in windPRO is sourced from Geoportal ČÚZK operated by the Czech Land Survey Office. The model in windPRO is derived from the INSPIRE compliant dataset - which were derived from the Digital Terrain Model of the Czech Republic – 4th generation (DMR 4G). The derived elevation models delivered with windPRO is at 5m and 20m resolution. Coverage is the whole of the Czech Republic. In windPRO we deliver two versions, a fine-resoution model (5m grid) and a version resampled by EMD to obtain a slightly coarser resolution (20 m) in order for the data to be operational for the larger areas needed in the context of wind farm analysis’. |
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=== Dataset Overview === | === Dataset Overview === | ||
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* '''Coordinate system:''' | * '''Coordinate system:''' | ||
** Horizontal: EPSG: 3794 (D96TM) | ** Horizontal: EPSG: 3794 (D96TM) | ||
| + | ** Vertical: | ||
* '''Version:''' Data downloaded in December 2023. | * '''Version:''' Data downloaded in December 2023. | ||
| − | * '''Vertical Accuracy:''' 0. | + | * '''Vertical Accuracy:''' 0.3m in bare terrain and 1.0m in forested terrain (for DMR 4G dataset) |
== Usage Notes == | == Usage Notes == | ||
Revision as of 21:56, 6 December 2023
Introduction
The Czech Republic elevation model is a digital terrain model (DTM) produced from airborne laser scanning (LIDAR) data obtained in years 2009-2014. The data in windPRO is sourced from Geoportal ČÚZK operated by the Czech Land Survey Office. The model in windPRO is derived from the INSPIRE compliant dataset - which were derived from the Digital Terrain Model of the Czech Republic – 4th generation (DMR 4G). The derived elevation models delivered with windPRO is at 5m and 20m resolution. Coverage is the whole of the Czech Republic. In windPRO we deliver two versions, a fine-resoution model (5m grid) and a version resampled by EMD to obtain a slightly coarser resolution (20 m) in order for the data to be operational for the larger areas needed in the context of wind farm analysis’.
Dataset Overview
- Spatial Coverage: Czech Republic
- Resolution: 5 m and 20m
- Data-type: Digital Terrain Model (DTM)
- Coordinate system:
- Horizontal: EPSG: 3794 (D96TM)
- Vertical:
- Version: Data downloaded in December 2023.
- Vertical Accuracy: 0.3m in bare terrain and 1.0m in forested terrain (for DMR 4G dataset)
Usage Notes
- Please allow 1-2 minutes for windPRO to process and download the high-resolution data (5m grid resolution). This is due to the size and resolution of the dataset.
Availability from within WindPRO
The data are available directly from within windPRO in 5-meter and 20-meter grid resolutions. 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 product is released following the Creative Commons By Attribution 4.0 license. When using the data, please acknowledge the source of information and use a proper attribution when using this dataset, such as:
Source: Elevation data from the Land Survey Office of the Czech Republic (based on DMR 4G). Adapted and distributed by EMD and windPRO.
Acknowledgement
- The Land Survey Office of the Czech Republic are thanked for producing this digital elevation dataset – and disseminating it in the public domain and thus for aiding the development of renewable energy.