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Content & Tools => Maps => Topic started by: Sonny on September 11, 2016, 21:17:19

Title: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on September 11, 2016, 21:17:19
Dear Locus map creators and users!

I want to tell you, that I've created several Digital Terrain Models (DTMs), which are based on precise Opendata LiDAR-elevation data of the country's Geographical Institutes.

You can check the overall site:
Or the individual countries' sites, right now these are:
The improvements in accuracy, quality and fine details of my model's elevations compared to those of the popular SRTM-datasets are enormous. Especially in mountainous terrain. Take a look at the following Map comparisons: Maps based on LiDAR-DTMs to maps based on SRTM-DTMs: https://bit.ly/comparisons-lidar-srtm (https://bit.ly/comparisons-lidar-srtm)

You can use these new DTMs to create improved, more accurate contour lines in maps. Or you can copy the files for the area of your interest into the correct folder of Locus to improve dynamic elavation values and the shading of the maps in these areas.

I spent many, many Hundreds of hours during my leisure time to search for new Opendata source files, get in contact with national public authorities. To download those giant amounts of source data. To search for errors, plug gaps within the data, compile, resample it and create files in useful formats. To finally provide them to you, FOR FREE.

It would make me very happy, if you honor this work by supporting me with a Donation. I've created a DONATIONLINK via PAYPAL on the Download sites.

THANK YOU VERY MUCH, Sonny.
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Andrew Heard on September 12, 2016, 10:14:57
Top effort @Sonny. I checked some routes I planned in Slovenia a few months ago, and the visual improvement in calculated gradient is amazing. Much less noise too. Are there plans for other countries, for example France, Switzerland, and the remainder of Italy?

Maybe a question for @Arndt, I presume for BRouter to make better routing decisions involving elevation the RD5 files would need to incorporate the new HGT/ GeoTIFF data?
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Sonny on September 12, 2016, 10:31:20
If the country's Lidar-elevation data is Opendata, then maybe. But those of Switzerland, France are not available free. And for Italy (exempt South Tyrol) I'm unsure about the situation. And if Opendata - where to find LiDAR sources of the whole country.
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: balloni55 on September 12, 2016, 12:52:51
Hi sonny
screenshots looks very good 8) thanks

before i start testing a few small questions
QuoteOr you can copy the files for the area of your interest into the correct folder of Locus
- data/strm ??
- if so, should be the availabe hgt files of this area deleted?
- all files of unpacked zip, or only tif file?
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Sonny on September 12, 2016, 13:13:19
First of all:
- Just download the 1"-sec versions of the DTMs (or if you have little available memory on your phone: 3"-sec).
Not the 20m and 50m-versions, Locus can not use them.

- Yes, copy the .hgt-files into data/srtm folder of Locus.

- If there are already equal named files in this directory, just overwrite them (they have been automatically downloaded by Locus before and are based on less accurate SRTM-data)

You don't have to copy each .hgt-file of a country, just for the areas you are interested in.
Each elevation file (.hgt) represends exactly 1° x 1°, which could automatically derived from the filename. The filename specifies the southwest corner, e.g. "N47E014.hgt" represends an area from N47° to N48° latitude and E14° to E15° longitude.

- If you copied them I recommend to start Locus and once execute
Menu > Settings > Miscellaneous > Clear temporary data > (check all points)
to make sure, no old cached elevation or shading remain.
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Dejan Jeremić Jera on September 12, 2016, 13:51:50
Can you please make 1"-sec versions of those for Serbia, Montenegro, Bosnia, Macedonia and Croatia  :)
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: michaelbechtold on September 12, 2016, 18:32:05
The first step is a site to download the LIDAR raw data free of charge.
Do you have links to those data sets ??
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Andrew Heard on September 13, 2016, 01:04:11
Quote from: sonny on September 12, 2016, 10:31:20
If the country's Lidar-elevation data is Opendata, then maybe. But those of Switzerland, France are not available free. And for Italy (exempt South Tyrol) I'm unsure about the situation. And if Opendata - where to find LiDAR sources of the whole country.
OK thanks for reply. One day...
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: jonny.blue on September 13, 2016, 11:52:39
Thanks ... works great.
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Talbi on November 21, 2016, 17:17:38
One of the best improvements for Locus since i use it,
all my tracks (the elevation data) are much more realistic than before, tipi-topi!!

THANKS A LOT !!
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Christian on November 21, 2016, 21:31:44
Thanks from me also.
The elevation gain of my alpine tracks got.... lower ;)
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Sonny on February 28, 2017, 01:07:05
I added terrain models of Luxembourg and some German provinces:

http://data.opendataportal.at/dataset/dtm-germany (http://data.opendataportal.at/dataset/dtm-germany)
http://data.opendataportal.at/dataset/dtm-luxembourg (http://data.opendataportal.at/dataset/dtm-luxembourg)
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Tapio on April 17, 2017, 13:05:00
Is there an all-in-one package? It's not too much data (in terms of megabytes) AFAICS...
But first and foremost I have to thank you!
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Sonny on April 17, 2017, 13:12:03
Sorry, no.
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: erfi on April 17, 2017, 22:53:28
Hallo sonny, the LiDAR Terrain Models are wonderful. Many thanks!
Is it planned to create a LiDAR 1" Terrain Model of "Sächsische Schweiz" (N50E014.hgt)?
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Sonny on April 17, 2017, 23:54:25
I'll probably do if there are once Opendata Lidar sources of this German province (Sachsen). Right now I'm afraid there's no such data available for free use.
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Tapio on April 18, 2017, 05:19:30
No free data for Sachsen, that's sad, I'm sometimes @ Erzgebirge.

Oh what a difference, I reset the height levels in Locus pro for some tracks and the Höhenmeter up/down (elevation gain ?) values went down e.g. from 9xx to 500 something...  :o But I cannot say for sure if I really used the old SRTM data or GPS data pulled by my phone. However, what a big difference. It's overall like 30-40% difference.
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: uatschitchun on December 19, 2017, 10:47:54
Is it possible to use the 20/50m models with Locus?
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: Sonny on December 19, 2017, 17:52:01
i'm afraid not. But the 1"  models (.hgt files) are about as precise as the 20m models
Title: Re: Precise LiDAR Terrain Models of Austria, Germany, Slovenia, Spain
Post by: uatschitchun on December 19, 2017, 23:27:27
Ah ok, the hgt work well :-)

Thx for that!
Title: Re: Precise LiDAR Terrain Models of Austria and other European countries
Post by: Sonny on April 15, 2018, 20:22:35
Switzerland and France are available now too:

http://data.opendataportal.at/dataset/dtm-france (http://data.opendataportal.at/dataset/dtm-france)
http://data.opendataportal.at/dataset/dtm-switzerland (http://data.opendataportal.at/dataset/dtm-switzerland)
Title: Re: Precise LiDAR Terrain Models of Austria and other European countries
Post by: Sonny on May 18, 2018, 10:55:29
I spent many hours and weeks to collect and edit the source data for creating a DTM for the whole country of Italy. Most of the Italian regions provide more or less high quality data. For those who don't, I used 1" SRTM data.
Now the project is finished and available here:

http://data.opendataportal.at/dataset/dtm-italy (http://data.opendataportal.at/dataset/dtm-italy)
Title: Re: Precise LiDAR Terrain Models of Austria and other European countries
Post by: voldapet on May 18, 2018, 11:04:59
@sonny ...you're awesome!  We'll use it for LoMaps as your previous datasets. Thank you
Title: Re: Precise LiDAR Terrain Models of Austria and other European countries
Post by: Sonny on June 26, 2018, 10:03:51
There's been a problem in the Northwest of the Italian files. Please download the corrected ones here:
http://data.opendataportal.at/dataset/dtm-italy (http://data.opendataportal.at/dataset/dtm-italy)
Title: Re: Precise LiDAR Terrain Models of Austria and other European countries
Post by: voldapet on June 27, 2018, 16:51:00
Thank you - updated.
Title: Re: Precise LiDAR Terrain Models of Austria and other European countries
Post by: Sonny on December 11, 2018, 10:35:31
Dear Locus-Friends,

I've spent lots of hours during the last months to collect, check and resample data. Just before Christmas I'm going to give you the result – several new DTMs – as a present:

Belgium:
http://data.opendataportal.at/dataset/dtm-belgium (http://data.opendataportal.at/dataset/dtm-belgium)

Denmark:
http://data.opendataportal.at/dataset/dtm-denmark (http://data.opendataportal.at/dataset/dtm-denmark)

Estonia:
http://data.opendataportal.at/dataset/dtm-estonia (http://data.opendataportal.at/dataset/dtm-estonia)

Finland:
http://data.opendataportal.at/dataset/dtm-finland (http://data.opendataportal.at/dataset/dtm-finland)

Lavia:
http://data.opendataportal.at/dataset/dtm-latvia (http://data.opendataportal.at/dataset/dtm-latvia)

Netherlands:
http://data.opendataportal.at/dataset/dtm-netherlands (http://data.opendataportal.at/dataset/dtm-netherlands)

Norway:
http://data.opendataportal.at/dataset/dtm-norway (http://data.opendataportal.at/dataset/dtm-norway)

Sweden:
http://data.opendataportal.at/dataset/dtm-sweden (http://data.opendataportal.at/dataset/dtm-sweden)

Enjoy them, Sonny.
Title: Re: Precise LiDAR Terrain Models of Austria and other European countries
Post by: Sonny on December 11, 2018, 10:39:03
As far as I know, I've now completed the list of European countries where Opendata LIDAR source data is available. If you notice that there are new European countries providing high quality Opendata DTMs in the future, feel free to contact me!

Finally something regarding myself: During the last 2.5 years I spent many, many Hundreds of hours during my leisure time to search for new Opendata source files. I've written hundreds of Mails – mostly in foreign languages ;-) – to contact public authority of the individual countries to help me with finding free and often hidden source data of their country. I had to download giant amounts of source data. I had to search for errors, plug holes within the data, compile, resample it and create files in useful formats. To provide them to you, the community for free.

It would make me very happy, if you honor this work by supporting me with a Donation. I've created a DONATIONLINK via PAYPAL:
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=E6GG3NPU88ZQE&source=url (https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=E6GG3NPU88ZQE&source=url)

THANK YOU VERY MUCH, Sonny.



Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on September 05, 2019, 21:00:16
I have created new files of Germany-Saxony, which you can download here:
https://data.opendataportal.at/dataset/dtm-germany (https://data.opendataportal.at/dataset/dtm-germany)
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on December 12, 2019, 12:39:59
After lots of hours of work, finally the latest version of DTMs of Spain are ready for Download:

https://data.opendataportal.at/dataset/dtm-spain (https://data.opendataportal.at/dataset/dtm-spain)

I therefor used the latest available source-files of the Spanish survey Institute. Most improvements are in regions which lack of LIDAR source data in the previous DTMs: Andalusia and the Balearic Islands.
Now the whole territory of Spain is covered by high quality LIDAR data.
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on February 27, 2020, 16:31:41
There's a new DTM, of Northern Ireland which you can download here:

https://data.opendataportal.at/dataset/dtm-united_kingdom (https://data.opendataportal.at/dataset/dtm-united_kingdom)
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on March 13, 2020, 11:16:26
Good news: After lots of hours research, contact with different institutes across the country, quality checks etc. there's for the first time a high-quality DTM of the whole United Kingdom

https://data.opendataportal.at/dataset/dtm-united_kingdom (https://data.opendataportal.at/dataset/dtm-united_kingdom)

For about 75% of England, Wales, Northern Ireland fine LIDAR source data available, Scotland
unfortunately (beside river valleys and coasts) is not covered as well. For the areas not covered with fine LIDAR-data I used OS DTM-50m which is wider gridded but also based on LIDAR source data and hence especially in wooden areas more accurate than SRTM data.

Enjoy the new DTMs of the UK!
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on January 26, 2021, 00:26:20
Since some weeks LiDAR source data of the whole territory of France in its finest resolution is available as OpenData. So during the last weeks I created enhanced DTMs of France:
https://data.opendataportal.at/dataset/dtm-france

Additionally Wallonia (Souther Belgium) also provides their LiDAR sources in its finest resolution as OpenData. So I created enhanced DTMs for Belgium too, now the whole country is complete in highest resolution:
https://data.opendataportal.at/dataset/dtm-belgium

Have fun, Sonny.
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on February 12, 2021, 17:37:51
I created a new DTM of Iceland

https://data.opendataportal.at/dataset/dtm-iceland

Have fun!
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: onelook on February 16, 2021, 10:02:16
Hello, do you have this data for Czech Republic, Slovakia and Poland?
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on February 16, 2021, 11:28:59
I'm not sure if there are Opendata LiDAR sources avalable for these coutries yet. If you know some, please post the links where to get them.
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on March 04, 2021, 16:19:03
I created a new Version of Swiss DTMs, with great improvements in large parts of the country:
https://data.opendataportal.at/dataset/dtm-switzerland

They are based on new high-quality OpenData sources of Swisstopo.

By the way: I created a Twitter account to post news and answer questions. If you want me to follow:
https://twitter.com/SonnyLidarDTMs (https://twitter.com/SonnyLidarDTMs)
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on March 17, 2021, 22:40:29
I created new DTM of the whole of Germany. Not each federal state is offering OpenData elevation data yet. Please open the image "_Sources.png" in the download package to check the type of Sourcedata for each region.

https://data.opendataportal.at/dataset/dtm-germany

Furthermore I created a new DTM of Slovakia, please check:

https://data.opendataportal.at/dataset/dtm-slovakia
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on March 17, 2021, 23:06:13
By the way: There's one European country left which offers precise 1m-OpenData Lidar source data: Poland.

But it's not possible to download the enourmous data for the whole country due to the limitations in the download methods. I already contacted the Polish office (GUGiK), but they seem not willing to improve their download methods nor offering an alternativem less dense gridded DTM (e.g. 10m) for the whole country which would result in an ideal file size to download.

If somebody of you is interested in a Lidar-DTM of Poland, you could contact them too, to make them understand the request for a countrywide download of their elevtion data.

Info site is:
http://www.gugik.gov.pl/pzgik/zamow-dane/numeryczny-model-terenu
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on April 09, 2021, 16:06:29
There's a new version (v2) of DTM Austria, my oldest DTM. Therefor I downloaded the latest LiDAR source data of Austria's federal states.

Additionally I created 2 models with finer resolutions (10m and 0.5"). These fine gridded models will kept limited to Austria.

https://data.opendataportal.at/dataset/dtm-austria
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Pflichtfeld on March 01, 2022, 16:24:43
Thank you Sonny,
your links to opendataportal.at are broken.
Where can we get your LIDAR-Data?
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Sonny on March 01, 2022, 16:49:03
data.opendataportal.at is going to be transfered to a new operator, run by a governmental department. After necessary adaptions the site is going to be online again.

The downloadlinks itself are still active, but I don't want to post them in public, cause they could be outdated in the future. So neanwhile you can send me a PM with your DTM of interest and I'll send you the download links.

Btw: If there are news, I'll post it on my twitter channel
Title: Re: LiDAR- Digital Terrain Models (DTM) of European countries
Post by: Holger on April 29, 2022, 20:07:15
Hmmm, it takes a long time, this move. Maybe I can help pack the box ...  ;)