September 3, 2022
by chris
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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
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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
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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
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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
October 18, 2018
by chris
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Back in July 2017 when the first Sentinel-3 Level-2 data was released i did not write a detailed report like i did for the Level-1 data because i wanted to wait for the rest of the products – which are … Continue reading
August 11, 2018
by chris
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Once upon a time, a few years ago, there was a startup company called what3words that tried (and apparently still tries) to make money out of selling an address system based on encoding geographic coordinates into a string. To anyone … Continue reading
March 20, 2018
by chris
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Tomorrow once again the annual FOSSGIS conference starts – this year in Bonn. At the moment it looks like it is going to be pretty damn cold… I am going to present a talk on Thursday afternoon about design oriented … Continue reading
February 23, 2018
by chris
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Some news on open data satellite images: I updated the satellite image coverage visualizations. Here is the matching coverage volume plot over time: There are several important things you can see in that: With Landsat 8 the USGS has for … Continue reading
November 1, 2017
by chris
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About a year ago i wrote my report on the first year acquisitions of Sentinel-2 as well as for Landsat on a matching time frame. This was – and still is to my knowledge – the most detailed and accurate … Continue reading