June 16, 2017
by chris
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With the recent introduction of additional imagery layers for the purpose of mapping in OpenStreetMap by DigitalGlobe significantly more source material is now available for remote mapping in OSM. However in many, especially remote areas my OSM images for mapping … Continue reading
May 1, 2017
by chris
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Recently i made some effort updating the Antarctic coastline in OpenStreetMap regarding the most significant changes due to the movement of the ice. This essentially means bringing the position of the outer edges of the three largest ice shelf plates … Continue reading
March 12, 2016
by chris
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Last year i showed an image from the Bay of Whales in Antarctica. Here is a newer Landsat image from the same area from approximately a year later. And here is the same in direct comparison to the 2015 image … Continue reading
February 28, 2016
by chris
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On openstreetmapdata.com Jochen and me provide daily updated processed OpenStreetMap coastline data for use in maps and elsewhere. It is used for example by the standard map on openstreetmap.org to provide an up-to-date rendering of the coastline. This data is … Continue reading
February 20, 2016
by chris
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The latest version of the OpenStreetMap standard map style contains a change from me adding and improving rendering of some coastal features. First it adds support for rendering areas tagged natural=reef using a blue dot pattern: Reefs in OpenStreetMap are … Continue reading
September 1, 2015
by chris
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Two new images were added to the OSM images for mapping layer: The former is from the Alaska Range which is currently quite popular since its highest mountain which is also the highest mountain in North America has recently been … Continue reading
August 24, 2015
by chris
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Some might have noticed that in spring i skipped my usual report on the OpenStreetMap coastline data quality. I have now prepared a whole year update on that as well as a similar report on the glacier data (where my … Continue reading
October 11, 2014
by chris
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When I wrote previously about the quality of the OpenStreetMap waterbody data one major problem – just like in case of the coastline – was that without a reference data set you cannot say much about the quality and completeness … Continue reading
September 29, 2014
by chris
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Meanwhile more than a year ago i imported extensive data in OpenStreetMap for Antarctica much of which is showing the delineation of ice and ice free areas. Still none of the widely used OpenStreetMap based maps is showing this data. … Continue reading
August 6, 2014
by chris
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I have produced a new generalized coastline data set you can download and also put together a new update of my coastline data quality analysis. The main news is: The generalized coastlines are now – at least for the moment … Continue reading