July 21, 2024
by chris
1 Comment
In my announcement of the Green Marble 4 global satellite image mosaic i mentioned that i am moving to a 32 bit per channel color representation in processing of the data. I here want to explain the background of this … Continue reading
July 20, 2024
by chris
0 comments
I am happy to announce another update of my global satellite image mosaic – the Green Marble. Version 4 of the Green Marble does not differ as much visually from its predecessors as version 2 and 3 since it continues … Continue reading
July 17, 2024
by chris
3 Comments
Five years ago i wrote about the 15th anniversary of OSM and my outlook into the next fifteen years. We now have the 20th anniversary. This is a bit early to review my predictions (with merely 1/3 of the time … Continue reading
January 15, 2024
by chris
1 Comment
Back in July i introduced the Musaicum EU-plus – a 10m resolution satellite image mosaic of Europe. I have now finalized two additional variants of this image that i would like to introduce here. Both of them are fairly specialized … Continue reading
July 26, 2023
by chris
7 Comments
There has been quite a bit of fuzz in the OSM community recently (like here – warning: link goes to patronizing and broken web interface) because one of the image layers with semi-global coverage that had so far been widely … Continue reading
September 3, 2022
by chris
0 comments
In this post i want to write a bit about the OpenStreetMap data model. This has obviously been influenced by the discussion in the OSMF to make changes to that model i already mentioned in a previous post. I am … Continue reading
March 7, 2022
by chris
11 Comments
This post is also published on TagDoc – you can read it there as well if you prefer. To many, even to some experienced OSM community members, the free tagging system of OpenStreetMap appears chaotic, unorganized and inefficient. And it … Continue reading
September 13, 2021
by chris
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The title of this section should be interpreted loosely this time – i have not discussed new developments in the domain in general for some time now so some of the news are more than a year old already. There … Continue reading
August 10, 2019
by chris
2 Comments
Today we celebrate the 15th anniversary of the OpenStreetMap project. The date is somewhat arbitrary but i none the less want to take the opportunity to think a bit about what the next 15 years might bring and how things … Continue reading
January 14, 2019
by chris
0 comments
It took me somewhat longer this time but i have prepared my traditional yearly report on open data satellite image acquisition numbers – for Sentinel2 and Landsat – for the October 2017 to October 2018 time frame. See last year’s … Continue reading