EU-DEM

From Wiki-WindPRO
Revision as of 10:53, 10 July 2020 by Morten (talk | contribs)
Jump to navigation Jump to search

Introduction

Coverage of the EU-DEM Dataset (version 1.1)

The EU-DEM is a Pan-European digital elevation (surface) model covering European countries. WindPRO holds the versions 1.0 and 1.1 of the dataset. The dataset is void-filled and is created by a fuse of SRTM and ASTER GDEM by a weighted averaging approach. For areas outside SRTM coverage (north of 60 degrees), the dataset is primarily based on Russian topography sources.

Dataset Overview

  • Spatial Coverage: Pan-European (see image to the right and country list below)
  • Resolution: 25m for version 1.1 and 1-arc-second (30m) for version 1.0
  • Data-type: Digital Surface Model (DSM)
  • Coordinate system: EPSG:3035 (ETRS89, LAEA) in original data
  • Versions: 1.0 and 1.1 with data procured in 2016 and 2020 respectively.
  • Vertical Accuracy: Overall vertical root-mean-square-error of 2.9 m (but varies with country/region)

Usage Notes

  • Versions: Two version of the EU-DEM data are available in windPRO: 1.0 and 1.1. The version 1.1 is improved over the version 1.0 by using ICESat as a reference level along with removing correcting more than 75000 artefacts found in the version 1.0.
  • The version 1.1 service in windPRO delivers maps aligned with projection north. The service for the version 1.0 data delivers data aligned with geographical north. Thus you may find newer data tiles 'skewed' compared to old ones.

Coverage

This dataset covers the following countries: Albania, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Kosovo, Latvia, Liechtenstein, Lithuania, Luxembourg, Macedonia the former Yugoslavian Republic of, Malta, Montenegro, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom.

Data Validation and Recommendation

Sample of EU-DEM dataset (version 1.0): At Kungshamn and Smögen, Sweden

A validation report is available from the EU-DEM team documenting an overall vertical root-mean-square-error of 2.9 m. Please note, there is a known issue that the EU-DEM dataset (as measure of ground topography) is less reliable when the terrain slope becomes steeper and the density of the tree cover increases. For more information, please see the link to the validation report below.

For any use of this data, we (EMD) recommend always to validate the height-contours with other data-sources (like high-resolution national topography maps). In addition, special caution should be taken when using the EU-DEM beyond 60 degree north - as the beckground data sources here are less reliable, read more in the official validation report here.

License and Acknowledgement

The EU-DEM dataset is a realization of the Copernicus programme, managed by the European Commission, DG Enterprise and Industry. The following credit must be displayed when using these data: 

Produced using Copernicus data and information funded by the European Union - EU-DEM layers. 
Distributed from EMD and windPRO.

The following parties are acknowledged:

  • The European Commission, the European Environmental Agency (EEA) and the Copernicus Programme are acknowledged for the funding, development and release of the free and open dataset.
  • 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

Conditions of Access and Terms of Use

Access to data is based on a principle of full, open and free access as established by the Copernicus data and information policy regulation (EU) No 1159/2013 of 12 July 2013. Free, full and open access to this data set is made on the conditions that:

  1. When distributing or communicating Copernicus data and information to the public, users shall inform the public of the source of that data and information.
  2. Users shall make sure not to convey the impression to the public that the user's activities are officially endorsed by the Union.
  3. Where that data or information has been adapted or modified, the user shall clearly state this.

The regulation can be found from eur-lex - available here.

External Links

Retrieved from "http://help.emd.dk/mediawiki/index.php?title=EU-DEM&oldid=11953"