SONNY's LiDAR DIGITAL TERRAIN MODELS of EUROPE

Compiled and resampled by Sonny map

Welcome to my Website! I am a geographic enthusiast from Austria and back in 2016 I started collecting and compiling free Digital LiDAR Terrain Models ("DTMs").

I spent Hundreds of hours during my leisure time to search for new Opendata source files, get in contact with national public authorities and to download those giant amounts of data. Further to search for errors, plug gaps within the data, compile, resample it and create files in useful formats.
And finally to provide them to you, FOR FREE. Since I'm not a professional I appreciate, if you honor my voluntary work by supporting me with a Donation - Thank you very much!

If you don't want to use PayPal, you can also donate via bank transfer, just ask for my account details.

NEWS

ABOUT SONNY DTMs

These Digital Elevation Models (DEM), exactly Digital Terrain Models (DTM) - in contrast to Digital Surface Models (DSM) - are based on precise LiDAR elevation sources. They have been surveyed using the method of Airborne Laserscan (ALS). The accuracy and resolution of my models' elevations compared to satellite-based surveys like ASTER, ALOS, COPERNICUS or SRTM is significantly better. Especially in wooded areas, steep rocky terrain or narrow valleys.

Comparison: Maps based on LiDAR-DTM versus SRTM-DTM

My goals of this project are to collect, edit and publish Digital Terrain Models of Europe:

The 1" and 3" models are split into several 1 x 1° files in the popular file format of the SRTM datasets (.hgt files). Their horizontal resolution is ca. 20 x 30 m (1") and ca. 60 x 90 m (3"), and their vertical resolution is 1 m. Because of their finer grid the 1"-DTMs are more precise than the 3"-DTMs but on the other hand also much larger regarding download- and filesizes.

The 20m and 50m models are provided as GeoTIFF elevation files. Their horizontal resolution is 20 x 20 m (20m) and 50 x 50 m (50m), and their vertical resolution is 0.1 m. Because of their finer grid the 20m-DTMs are more precise than the 50m-DTMs but on the other hand also much larger regarding download- and filesizes.

The tiles of the 1" and 3" models are cross-country entirely filled with elevation data: where available using LiDAR data, otherwise with SRTM data. Thus you can replace used SRTM tiles by simply overwriting them with the tiles from here without getting data gaps. On the other hand the 20m and 50m models just contain the individual country's pure sourcedata.

The models are downloaded as .zip-files. You can use any file archiver to decompress them, I recommend using 7-Zip. It's able to decompress multiple .zip files of the 1" and 3" models into .hgt files at once: select all .zip files within your file manger > right mouseclick > "7-Zip" > "Extract Here"

Google Drive: If you're downloading 1" or 3" models, depending on the download-method, you may get a virus warning for some files. This is just a warning because the files weren't scanned by Google Drive, and no indication of a real infection. They're just harmless zipped elevation files, you can check them after downloading with a virus scanner of your coice, and you'll not find any threat.
The warning just occurs 1) if you're logged in your Google account (if you're not logged in, you can download the whole folder by "Download all" without a warning). 2) If you're downloading by selecting all files and then "Download". So I recommend to download a folder by clicking on the folder name on the top (e.g. "DTM Austria 1asec ...") > "Download" which will execute the download without a warning.

The Terrain Models are OPEN, FREE and WITHOUT CHARGE. But they are licensed using the following LICENCE: Creative Commons Attribution 4.0 (CC BY 4.0). You are allowed to copy, redistribute the material in any medium or format as well as remix, transform, and build upon the material for any purpose, even commercially. Please mention my name (Sonny) and put a link to my Website (sonny.4lima.de), thank you!

You can see a list of all used source data. For further information of a specific DTM open its "_Readme.txt" file!

USERS

Sonny's LiDAR Digital Terrain Models are used, among others, by:

DOWNLOADS

EUROPE (Collective Download)

v23: DTM 1" (4.8 GB) | DTM 3" (0.8 GB)

AUSTRIA

v2: DTM 0.5" | DTM 1" | DTM 3" | DTM 10m | DTM 20m | DTM 50m

BELGIUM

v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

CROATIA

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

CYPRUS

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

CZECHIA

v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

DENMARK

Mainland v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

Faroes v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

ESTONIA

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

FINLAND

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

FRANCE (incl. Monaco, Guernsey, Jersey)

v3: DTM 1" | DTM 3" | DTM 20m | DTM 50m

GERMANY

v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

HUNGARY

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

ICELAND

v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

IRELAND

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

ITALY (incl. San Marino, Vatican City, Malta)

v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

LATVIA

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

LITHUANIA

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

LUXEMBOURG

v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

NETHERLANDS

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

NORWAY

Mainland v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

Svalbard v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

Jan Mayen v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

POLAND

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

PORTUGAL

Mainland v0: DTM 1" | DTM 3" | DTM 20m | DTM 50m

Azores v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

Madeira v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

ROMANIA

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

SLOVAKIA

v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

SLOVENIA

v1: DTM 1" | DTM 3" | DTM 20m | DTM 50m

SPAIN

Mainland (incl. Andorra, Gibraltar) v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

Canaries v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

SWEDEN

v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

SWITZERLAND (incl. Liechtenstein)

v2: DTM 1" | DTM 3" | DTM 10m | DTM 20m | DTM 50m

UNITED-KINGDOM (incl. Isle of Man)

v2: DTM 1" | DTM 3" | DTM 20m | DTM 50m

This is a private, non-commercial Website.
Feedback regarding OpenData DTM sources of yet uncovered countries is welcome!
Follow me on Twitter: SonnyLidarDTMs
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