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Jakub Nowosad🌍 Which geospatial conferences are you excited about in 2026?I'm compiling a list at <a href="https://github.com/Nowosad/conferences_2026" rel="nofollow noopener" translate="no" target="_blank">https://github.com/Nowosad/conferences_2026</a> -- please contribute events you know about!What am I missing? <a href="https://fosstodon.org/tags/GIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#GIS</a> <a href="https://fosstodon.org/tags/RemoteSensing" class="mention hashtag" rel="nofollow noopener" target="_blank">#RemoteSensing</a> <a href="https://fosstodon.org/tags/SpatialData" class="mention hashtag" rel="nofollow noopener" target="_blank">#SpatialData</a> <a href="https://fosstodon.org/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a>

Doug G. (Map of the Week)For years we've been paying $12-13,000 for annual Esri software maintenance. This year it's over $17,000. Next year if we keep our current numbers it will be close to $21K, ramping up to almost $29,000 in 2029. I guess Jack must be struggling to pay his bills? We certainly will be. <a href="https://mapstodon.space/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a>

Derek LawIn 1 week, <a href="https://bird.makeup/users/esri" class="u-url mention" rel="nofollow noopener" target="_blank">@esri</a> webinar: <a href="https://mastodon.world/tags/Automating" class="mention hashtag" rel="nofollow noopener" target="_blank">#Automating</a> Paper Chart Production: Insights from <a href="https://mastodon.world/tags/Shom" class="mention hashtag" rel="nofollow noopener" target="_blank">#Shom</a>, French <a href="https://mastodon.world/tags/hydrographic" class="mention hashtag" rel="nofollow noopener" target="_blank">#hydrographic</a> office <a href="https://tinyurl.com/bdf9fysa" rel="nofollow noopener" translate="no" target="_blank">https://tinyurl.com/bdf9fysa</a> <a href="https://mastodon.world/tags/nautical" class="mention hashtag" rel="nofollow noopener" target="_blank">#nautical</a> <a href="https://mastodon.world/tags/marine" class="mention hashtag" rel="nofollow noopener" target="_blank">#marine</a> <a href="https://mastodon.world/tags/mapping" class="mention hashtag" rel="nofollow noopener" target="_blank">#mapping</a> <a href="https://mastodon.world/tags/maps" class="mention hashtag" rel="nofollow noopener" target="_blank">#maps</a> <a href="https://mastodon.world/tags/cartography" class="mention hashtag" rel="nofollow noopener" target="_blank">#cartography</a> <a href="https://mastodon.world/tags/GIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#GIS</a> <a href="https://mastodon.world/tags/esri" class="mention hashtag" rel="nofollow noopener" target="_blank">#esri</a> <a href="https://mastodon.world/tags/arcgis" class="mention hashtag" rel="nofollow noopener" target="_blank">#arcgis</a> <a href="https://mastodon.world/tags/ArcGISMaritime" class="mention hashtag" rel="nofollow noopener" target="_blank">#ArcGISMaritime</a> <a href="https://mastodon.world/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a> <a href="https://mastodon.world/tags/geospatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#geospatial</a> <a href="https://bird.makeup/users/esritraining" class="u-url mention" rel="nofollow noopener" target="_blank">@esritraining</a> <a href="https://bird.makeup/users/arcgispro" class="u-url mention" rel="nofollow noopener" target="_blank">@arcgispro</a> <a href="https://bird.makeup/users/esrifederalgovt" class="u-url mention" rel="nofollow noopener" target="_blank">@esrifederalgovt</a> <a href="https://bird.makeup/users/urisa" class="u-url mention" rel="nofollow noopener" target="_blank">@urisa</a>

Mario Angst<a href="https://mapstodon.space/@fionag11" class="u-url mention" rel="nofollow noopener" target="_blank">@fionag11</a> now I am interested in how... does GIS hell look like?(as a non GIS person, in my mind, it looks like the horrible ArcGIS course I once took during my PhD, which consisted entirely of clicking through a 60 page printed out tutorial of screenshots of the GUI) <a href="https://fediscience.org/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a>

Jakob Miksch<a href="https://mastodon.social/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#python</a> library for <a href="https://mastodon.social/tags/realestate" class="mention hashtag" rel="nofollow noopener" target="_blank">#realestate</a> assesment <a href="https://mastodon.social/tags/gis" class="mention hashtag" rel="nofollow noopener" target="_blank">#gis</a> <a href="https://mastodon.social/tags/openstreetmap" class="mention hashtag" rel="nofollow noopener" target="_blank">#openstreetmap</a> <a href="https://mastodon.social/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a> <a href="https://www.openavmkit.com/" rel="nofollow noopener" translate="no" target="_blank">https://www.openavmkit.com/</a>

Jakob Miksch<a href="https://mastodon.social/tags/maplibre" class="mention hashtag" rel="nofollow noopener" target="_blank">#maplibre</a> <a href="https://mastodon.social/tags/vectortile" class="mention hashtag" rel="nofollow noopener" target="_blank">#vectortile</a> <a href="https://mastodon.social/tags/geodata" class="mention hashtag" rel="nofollow noopener" target="_blank">#geodata</a> <a href="https://mastodon.social/tags/gis" class="mention hashtag" rel="nofollow noopener" target="_blank">#gis</a> <a href="https://mastodon.social/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a> <a href="https://arxiv.org/abs/2508.10791" rel="nofollow noopener" translate="no" target="_blank">https://arxiv.org/abs/2508.10791</a>

Derek LawUnlocking the Power of <a href="https://mastodon.world/tags/Image" class="mention hashtag" rel="nofollow noopener" target="_blank">#Image</a> <a href="https://mastodon.world/tags/Analysis" class="mention hashtag" rel="nofollow noopener" target="_blank">#Analysis</a> in <a href="https://mastodon.world/tags/ArcGISPro" class="mention hashtag" rel="nofollow noopener" target="_blank">#ArcGISPro</a> <a href="https://tinyurl.com/pbv8csw8" rel="nofollow noopener" translate="no" target="_blank">https://tinyurl.com/pbv8csw8</a> <a href="https://mastodon.world/tags/imagery" class="mention hashtag" rel="nofollow noopener" target="_blank">#imagery</a> <a href="https://mastodon.world/tags/data" class="mention hashtag" rel="nofollow noopener" target="_blank">#data</a> <a href="https://mastodon.world/tags/RemoteSensing" class="mention hashtag" rel="nofollow noopener" target="_blank">#RemoteSensing</a> <a href="https://mastodon.world/tags/GIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#GIS</a> <a href="https://mastodon.world/tags/esri" class="mention hashtag" rel="nofollow noopener" target="_blank">#esri</a> <a href="https://mastodon.world/tags/arcgis" class="mention hashtag" rel="nofollow noopener" target="_blank">#arcgis</a> <a href="https://mastodon.world/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a> <a href="https://mastodon.world/tags/geospatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#geospatial</a> <a href="https://bird.makeup/users/esri" class="u-url mention" rel="nofollow noopener" target="_blank">@esri</a> <a href="https://bird.makeup/users/arcgispro" class="u-url mention" rel="nofollow noopener" target="_blank">@arcgispro</a> <a href="https://bird.makeup/users/esrifederalgovt" class="u-url mention" rel="nofollow noopener" target="_blank">@esrifederalgovt</a> <a href="https://bird.makeup/users/esrislgov" class="u-url mention" rel="nofollow noopener" target="_blank">@esrislgov</a> <a href="https://bird.makeup/users/esritraining" class="u-url mention" rel="nofollow noopener" target="_blank">@esritraining</a> <a href="https://bird.makeup/users/urisa" class="u-url mention" rel="nofollow noopener" target="_blank">@urisa</a>

Tom Chadwin<a href="https://mastodon.nzoss.nz/@strypey" class="u-url mention" rel="nofollow noopener" target="_blank">@strypey</a> <a href="https://cloudisland.nz/@miramarmike" class="u-url mention" rel="nofollow noopener" target="_blank">@miramarmike</a> Paging <a href="https://en.osm.town/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a> to see if anyone might want to help out with this?

Ian Turton<a href="https://med-mastodon.com/@luckytran" class="u-url mention" rel="nofollow noopener" target="_blank">@luckytran</a> it is a good colour scheme for colour blind people, probably works well if printed in black and white and is good on a variety of computer screens. These things are very important to cartographers and are the subject of large books, many papers and conference sessions.See <a href="https://colorbrewer2.org/#type=sequential&scheme=GnBu&n=5" rel="nofollow noopener" translate="no" target="_blank">https://colorbrewer2.org/#type=sequential&scheme=GnBu&n=5</a> for a link to demonstration and links to papers etc. <a href="https://mapstodon.space/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a> <a href="https://mapstodon.space/tags/cartography" class="mention hashtag" rel="nofollow noopener" target="_blank">#cartography</a> <a href="https://mapstodon.space/tags/notJustRandomColours" class="mention hashtag" rel="nofollow noopener" target="_blank">#notJustRandomColours</a>

CaGISNew article from Musang Yoo & Hyeongmo Koo looking at spatial autocorrelation and it's impact on spatial cross-validation, <a href="https://doi.org/10.1080/15230406.2024.2422593" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1080/15230406.2024.2422593</a> <a href="https://mapstodon.space/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a>

CaGISNew article from Zhiwei Wei & Nai Yang, who use a negative spatial auto-correlation index to improve tag map layout across multiple different scales, check out the paper at <a href="https://doi.org/10.1080/15230406.2024.2391479" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1080/15230406.2024.2391479</a> and their project at <a href="https://github.com/TrentonWei/Multi-scale-TagMap" rel="nofollow noopener" translate="no" target="_blank">https://github.com/TrentonWei/Multi-scale-TagMap</a> <a href="https://mapstodon.space/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a>

CaGISA novel way of comparing artificial land use in European cities, whilst adjusting for size. Check out a graphic below, the article at <a href="https://doi.org/10.1080/15230406.2024.2433573" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1080/15230406.2024.2433573</a> and the interactive tool at <a href="https://land-use.shinyapps.io/UE_Land_use_2018/" rel="nofollow noopener" translate="no" target="_blank">https://land-use.shinyapps.io/UE_Land_use_2018/</a>. Thanks Axel Pécheric, Rémi Lemoy and Marion Le Texier! <a href="https://mapstodon.space/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a>

CaGISFascinating new article! Silvia Klettner explores the The significance of the cartographic sign, evaluating influence of symbol shape on intuitive judgements, <a href="https://mapstodon.space/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a>, <a href="https://doi.org/10.1080/15230406.2024.2334454" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1080/15230406.2024.2334454</a>

CaGISFantastic new article from @VaientiBeatrice and colleagues, using Deformation Analysis to identify copying processes in historical maps, <a href="https://doi.org/10.1080/15230406.2024.2424891" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1080/15230406.2024.2424891</a> <a href="https://mapstodon.space/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a> <a href="https://mapstodon.space/tags/OpenAccess" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenAccess</a>

CaGISNew article! Tianshu Chu, Haowen Yan and colleagues explore a new way of generalizing road networks by making use of the PageRank algorithm to select the most 'important' roads, <a href="https://doi.org/10.1080/15230406.2024.2439311" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1080/15230406.2024.2439311</a> <a href="https://mapstodon.space/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a>, An example of the class-based method and the new PageRank method for 4 cities in China.

CaGISNew <a href="https://mapstodon.space/tags/article" class="mention hashtag" rel="nofollow noopener" target="_blank">#article</a> from Linfeng Jiang and colleagues, looking at a new way of visualising road connectivity: using CiteSpace, a bibliometric tool, with the literature replaced by the traffic trajectory and the keywords replaced by the roads, <a href="https://mapstodon.space/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a>, <a href="https://doi.org/10.1080/15230406.2024.2310884" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1080/15230406.2024.2310884</a>

CaGISNew article: A systematic literature review from Mariana Vallejo-Velázquez & Ourania Kounadi on spatial perception and knowledge via structured digital sketch maps, <a href="https://doi.org/10.1080/15230406.2024.2434629" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1080/15230406.2024.2434629</a>, <a href="https://mapstodon.space/tags/OpenAccess" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenAccess</a> <a href="https://mapstodon.space/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a>

CaGISIssue 52-05 of Cartography and Geographic Information Science is now available and the printed copy should be with all our subscribers! This time we have 8 papers including a systematic review of digital sketch maps, some great new spatial methods, a couple of really interesting applications and some new applications of spatial statistics. Check it out at <a href="https://www.tandfonline.com/toc/tcag20/52/5" rel="nofollow noopener" translate="no" target="_blank">https://www.tandfonline.com/toc/tcag20/52/5</a>, and the thread below! <a href="https://mapstodon.space/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a>

Derek LawBest practices when integrating <a href="https://mastodon.world/tags/data" class="mention hashtag" rel="nofollow noopener" target="_blank">#data</a> from <a href="https://mastodon.world/tags/cloud" class="mention hashtag" rel="nofollow noopener" target="_blank">#cloud</a> data warehouses w/ <a href="https://mastodon.world/tags/ArcGISPro" class="mention hashtag" rel="nofollow noopener" target="_blank">#ArcGISPro</a> and <a href="https://mastodon.world/tags/ArcGISEnterprise" class="mention hashtag" rel="nofollow noopener" target="_blank">#ArcGISEnterprise</a> <a href="https://tinyurl.com/k2s5m7d8" rel="nofollow noopener" translate="no" target="_blank">https://tinyurl.com/k2s5m7d8</a> <a href="https://mastodon.world/tags/DataMgmt" class="mention hashtag" rel="nofollow noopener" target="_blank">#DataMgmt</a> <a href="https://mastodon.world/tags/ETL" class="mention hashtag" rel="nofollow noopener" target="_blank">#ETL</a> <a href="https://mastodon.world/tags/GIO" class="mention hashtag" rel="nofollow noopener" target="_blank">#GIO</a> <a href="https://mastodon.world/tags/ArcGISAdmin" class="mention hashtag" rel="nofollow noopener" target="_blank">#ArcGISAdmin</a> <a href="https://mastodon.world/tags/GIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#GIS</a> <a href="https://mastodon.world/tags/esri" class="mention hashtag" rel="nofollow noopener" target="_blank">#esri</a> <a href="https://mastodon.world/tags/arcgis" class="mention hashtag" rel="nofollow noopener" target="_blank">#arcgis</a> <a href="https://mastodon.world/tags/GISchat" class="mention hashtag" rel="nofollow noopener" target="_blank">#GISchat</a> <a href="https://mastodon.world/tags/geospatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#geospatial</a> <a href="https://bird.makeup/users/esri" class="u-url mention" rel="nofollow noopener" target="_blank">@esri</a> <a href="https://bird.makeup/users/esrifederalgovt" class="u-url mention" rel="nofollow noopener" target="_blank">@esrifederalgovt</a> <a href="https://bird.makeup/users/esrislgov" class="u-url mention" rel="nofollow noopener" target="_blank">@esrislgov</a> <a href="https://bird.makeup/users/arcgispro" class="u-url mention" rel="nofollow noopener" target="_blank">@arcgispro</a> <a href="https://bird.makeup/users/arcgisxprise" class="u-url mention" rel="nofollow noopener" target="_blank">@arcgisxprise</a> <a href="https://bird.makeup/users/esritraining" class="u-url mention" rel="nofollow noopener" target="_blank">@esritraining</a>

jomoGermany has a lot of roads called "Sackgasse" (dead-end road).However, some of them have no dead ends at all. What a scam!I've challenged myself to find them and used the resulting <a href="https://mstdn.io/tags/Overpass" class="mention hashtag" rel="nofollow noopener" target="_blank">#Overpass</a> query as an example in my workshop today at <a href="https://bonn.social/@FrOSCon" class="u-url mention" rel="nofollow noopener" target="_blank">@FrOSCon</a>.<a href="https://overpass-turbo.eu/s/29ZE" rel="nofollow noopener" translate="no" target="_blank">https://overpass-turbo.eu/s/29ZE</a> (the query may need a minute to execute)I have added a lot of comments to explain how it works, and I have added it to the example queries in the <a href="https://mstdn.io/tags/OSM" class="mention hashtag" rel="nofollow noopener" target="_blank">#OSM</a> wiki.<a href="https://mstdn.io/tags/opensteetmap" class="mention hashtag" rel="nofollow noopener" target="_blank">#opensteetmap</a> <a href="https://mstdn.io/tags/gis" class="mention hashtag" rel="nofollow noopener" target="_blank">#gis</a> <a href="https://mstdn.io/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a> <a href="https://mstdn.io/tags/mapstodon" class="mention hashtag" rel="nofollow noopener" target="_blank">#mapstodon</a> <a href="https://mstdn.io/tags/froscon2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#froscon2025</a> <a href="https://mstdn.io/tags/froscon20" class="mention hashtag" rel="nofollow noopener" target="_blank">#froscon20</a>

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