Czech Republic DTM: Difference between revisions
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[[Category: Online Data]][[Category: Digital Elevation Models]] | [[Category: Online Data]][[Category: Digital Elevation Models]] | ||
[[Image:CzechRepublic_DTM-Model.png|right|thumb| | [[Image:CzechRepublic_DTM-Model.png|right|thumb|450px|Elevation model - 20m grid. Map showing coverage of the Czech Republic Digital Elevation Model.]] | ||
[[Image:20240110_CzechRepublic_DTM-5m-20m.png|right|thumb|450px|Elevation model - 5m & 20m grid - at work about 5km to the NE of the city of Jihlava, Czech Republic.]] | |||
== Introduction == | == 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 | 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 again is derived from the Digital Terrain Model of the Czech Republic – 4th generation (DMR 4G). Coverage is the whole of the Czech Republic. In windPRO we deliver two DTM's, a fine-resolution model (5m grid) and a version resampled by EMD to obtain a slightly coarser resolution (20 m). This is in order for the data to be operational for the larger areas needed in the context of wind farm analysis’. | ||
=== Dataset Overview === | === Dataset Overview === | ||
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* '''Data-type:''' [[:Category%3ADigital_Elevation_Models#What_type_of_elevation_model.3F_DEM.2C_DSM_and_DTM.3F|Digital Terrain Model (DTM)]] | * '''Data-type:''' [[:Category%3ADigital_Elevation_Models#What_type_of_elevation_model.3F_DEM.2C_DSM_and_DTM.3F|Digital Terrain Model (DTM)]] | ||
* '''Coordinate system:''' | * '''Coordinate system:''' | ||
** Horizontal: EPSG: | ** Horizontal: ETRS89/UTM 33N (EPSG:3045) | ||
** Vertical: | ** Vertical: EVREF2007 (EPSG:5621) | ||
* '''Version:''' Data downloaded in December 2023. | * '''Version:''' Data downloaded in December 2023. | ||
* '''Vertical Accuracy:''' 0.3m in bare terrain and 1.0m in forested terrain (for DMR 4G dataset) | * '''Vertical Accuracy:''' 0.3m in bare terrain and 1.0m in forested terrain (for DMR 4G dataset) | ||
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== License and Attribution == | == 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 | 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, such as: <br> | ||
<pre> | <pre> | ||
Source: Elevation data from the Land Survey Office of the Czech Republic (based on DMR 4G). | Source: | ||
Elevation data from the Land Survey Office of the Czech Republic (based on DMR 4G). | |||
Adapted and distributed by EMD and windPRO. | Adapted and distributed by EMD and windPRO. | ||
CC-BY-40 | |||
</pre> | </pre> | ||
Latest revision as of 08:20, 10 January 2024
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 again is derived from the Digital Terrain Model of the Czech Republic – 4th generation (DMR 4G). Coverage is the whole of the Czech Republic. In windPRO we deliver two DTM's, a fine-resolution model (5m grid) and a version resampled by EMD to obtain a slightly coarser resolution (20 m). This is 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: ETRS89/UTM 33N (EPSG:3045)
- Vertical: EVREF2007 (EPSG:5621)
- 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, 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. CC-BY-40
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.