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Sean Gillies: Quad Rock training week 16
Week 16 is over. It's six days to Quad Rock.
10 hours, 11 minutes all training
18 miles running
2,385 ft D+ running
I did a small set of hard running intervals, some steady running, and one last hilly run on the Quad Rock course with a friend on Friday. We pushed the pace on the upper half of the first climb, going up Towers Trail, and I was just a few seconds off my personal bests on those segments. 10/10 effort on Saturday won't be sustainable, but it was fun and a useful check on my fitness before the race. I'll completely recover from that by the end of the week, no problem.
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OSGeo Announcements: [OSGeo-Announce] TorchGeo and IBM TerraTorch Join Forces
https://www.osgeo.org/foundation-news/torchgeo-organization-ibm-research/
The TorchGeo Organization and IBM Research are joining forces!
The TerraTorch and TerraKit libraries have joined the TorchGeo Organization! https://github.com/torchgeo is now home to 3 of the most influential and widely used open-source GeoAI libraries:
...Sean Gillies: Kyle Kingsbury's bullshit about bullshit machines
You've probably seen links to "The Future of Everything is Lies, I Guess" already. I've just finished the last installment. This is an excellent series of posts with many references. If we meet to talk about the industry, I'm almost certainly going to ask if you've read it.
This is bullshit about bullshit machines, and I mean it. It is neither balanced nor complete: others have covered ecological and intellectual property issues better than I could, and there is no shortage of boosterism online. Instead, I am trying to fill in the negative spaces in the discourse. “AI” is also a fractal territory; there are many places where I flatten complex stories in service of pithy polemic. I am not trying to make nuanced, accurate predictions, but to trace the potential risks and benefits at play.
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geomatico: Los mapas que se ignoran
El espacio no es contexto, es estructura.
Los Sistemas de Información Geográfica (GIS) parecen hoy inseparables de disciplinas como urbanismo, planificación territorial o gestión ambiental. Sin embargo, su presencia en la enseñanza académica es sorprendentemente desigual: omnipresente en geografía, marginal en arquitectura, casi inexistente en sociología, economía o ciencias políticas. Lo paradójico es que el concepto fundacional del GIS no nació de la informática ni de la ingeniería, sino de algo mucho más antiguo y urgente: un epidemiólogo británico tratando de detener una epidemia.
Un plano que cambió la forma de entender la ciudadEn 1854, Londres sufría un grave brote de cólera. La teoría dominante era clara y científicamente respaldada: la enfermedad se transmitía por el aire —los llamados «miasmas». Pero John Snow, médico con una observación incómoda, sospechaba que la teoría estaba radicalmente equivocada.
...SourcePole: Multi-User Editing in QGIS Cloud
QGIS Cloud makes it possible to edit geospatial data collaboratively directly from the web browser. This is especially useful when several users need to update the same dataset without installing or configuring a local QGIS project.
GIScussions: Brain Freeze – What to map next?
I am struggling to come up with an idea for what to map next. A bit of a brain freeze. Have you got an idea? Leave a suggestion in the comments.
GRASS GIS: GRASS Community Meeting 2026 Announcement
Sean Gillies: Quad Rock training week 15
Week 15 was my peak week before Quad Rock on May 9. I didn't run a lot, but it was all high quality running.
14 hours, 23 minutes all training
24.8 miles running
6,020 feet D+ running
Tuesday I hiked and ran up and down Green Mountain in Boulder, my first time on that mountain. I went up the steeper east side and down the more runnable west side. The trail is ridiculously steep: in the first mile I gained 1,300 feet of elevation. There's a ladder at one point, that's how steep it is. The second mile has a short runnable section and averages only 19%. I went steadily to the top and ran the downhills of Ranger and Gregory Canyon as fast as I could while sight-reading. Green Mountain is fun, easy to access, and loved almost to death by Boulderites. The Amphitheater and Saddle Rock trails are in sad shape.
...GeoSolutions: GeoSolutions Exhibiting and Presenting at GEOINT 2026 Symposium
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QGIS España: Madrid acogerá la QGISCamp España 2026
Hace unos días lanzamos una encuesta para decidir si se celebraba y en caso afirmativo, cómo y dónde celebrar la próxima QGISesCamp 2026. Queríamos escuchar a la comunidad, contrastar opciones y tomar la decisión con criterio compartido. Y eso es exactamente lo que ha pasado.
Tras analizar los resultados, desde la Junta de la Asociación QGIS España hemos decidido que finalmente la QGISCamp España 2026 se celebrará en Madrid.
No ha sido una decisión automática. Ambas propuestas han estado muy igualadas, con argumentos diversos, pero entendemos que la propuesta ganadora, Madrid, ha destacado por su accesibilidad, su capacidad de acogida y las facilidades logísticas para organizar un encuentro cómodo, presencial y centrado en lo que de verdad importa: compartir conocimiento, experiencias y ganas de seguir construyendo comunidad en torno a QGIS.
...Sean Gillies: Laid off
Welp, I'm joining the ranks of the unemployed tech workers again.
As before, I'm in a good situation. I don't depend on my former employer for health insurance. I've got some severance and savings, my family is in good health, we have a roof over our heads, and I have good connections. I don't feel afraid.
But maybe I should? The job market is worse than last time this happened to me. I've seen experienced and talented people go for weeks and months without offers, and read some harrowing stories about what under-employment looks like for older tech workers these days.
After a little detour into the biomedical field, I'm looking to get back into helping to solve important geospatial problems. If you've got them, please let me know.
Sean Gillies: Station identification
Hello, my name is Sean Gillies, and this is my blog. I write about running, cooking and eating, gardening, travel, family, programming, Python, API design, geography, geographic data formats and protocols, open source, and internet standards. Fort Collins, Colorado, is my home.
Email me with questions or comments on any of my posts: sean.gillies@gmail.com.
Update: I'm currently looking for work in the geospatial field, remote or in Colorado. Please check out my CV.
Mergin Maps: [Blog] From wishlist to app: Feature filtering is live
QGIS Blog: Plugin Repository Security Enhancements
We want to share some updates we have made on the QGIS Plugin Repository. In January 2026 we shared QEP 409. The proposal seeks to improve the general working practices with QGIS plugins, adding some optional and some mandatory checks to every plugin that gets published in the QGIS plugin repo. This builds on initial work (see PR) we did to run ‘soft’ checks on every plugin when they are published.
We also ‘back ran’ the new security checks on every existing plugin in the plugin repository (latest versions only) and assigned them a security badge without blocking or removing any plugin from being published.
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gvSIG Team: Novedades gvSIG Desktop 2.7: Calculadora de coordenadas
La versión 2.7 de gvSIG Desktop incluye una nueva herramienta que permite convertir coordenadas entre distintos sistemas de referencia, que facilita por ejemplo el poder buscar coordenadas de puntos que se tienen en un sistema diferente al de la vista desde la propia aplicación, y no tener que acudir a herramientas externas. En el caso de coordenadas geográficas se puede seleccionar formato decimal, o grados, minutos y segundos.
Esta herramienta complementa al capturador de coordenadas, herramienta que ya existía en versiones anteriores de gvSIG Desktop, y con la que se podía obtener las coordenadas de un punto sobre la vista en el sistema de referencia elegido, aunque la vista estuviese en un sistema diferente. Esta herramienta permitía además guardar dichos puntos, para ser utilizados en algunos geoprocesos.
En el siguiente vídeo se muestra el funcionamiento de ambas herramientas:
GeoCat: GeoServer 3.0-RC is here
GeoSolutions: GeoServer 3.0-RC is here
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Fernando Quadro: Curso WebGIS com PostGIS, GeoServer 3 e GeoNode 5
Se você já trabalha com dados geoespaciais, provavelmente domina análise. Mas deixa eu te provocar:
Você sabe transformar isso em uma solução acessível na web?
Porque existe uma diferença enorme entre:
Gerar mapas
E entregar uma plataforma que outras pessoas realmente usam
E é exatamente aí que entra o WebGIS.
Hoje, quem se destaca não é só quem analisa dados… É quem consegue:
Centralizar informações
Publicar serviços padronizados (OGC)
Criar aplicações acessíveis via navegador
Controlar acesso e usuários
Escalar o uso dos dados
Em outras palavras: sair do desktop e ir para internet.
Agora vem o ponto que trava muita gente:
“Pra fazer isso eu preciso programar?”
Não.
Com as ferramentas certas, você consegue construir um WebGIS completo usando:
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GeoServer Team: GeoServer 3.0-RC, a crowdfunded success story
GeoServer 3.0-RC is now available, and with it we can celebrate something bigger than a release candidate.
This milestone is the concrete outcome of a successful community crowdfunding campaign.
When we launched the GeoServer 3 crowdfunding initiative in September 2024, the goal was ambitious. GeoServer needed more than incremental maintenance. It needed a full platform modernization, including a new generation user experience, a stronger security foundation, a modern Java stack, improved raster processing, and the engineering effort required to carry those changes across the broader GeoServer ecosystem.
That work is now visible in GeoServer 3.0-RC.
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Sean Gillies: Quad Rock training week 14
I needed my training to begin to peak in week 14. Quad Rock is in 20 days (at this writing), and I won't get much adaptation to workout loading in the last 13 days. Weeks 14 and 15 would be my last opportunities to get faster and stronger before the race. Fortunately, a return to good health and favorable weather helped make this my best week yet.
13 hours, 8 minutes all training
42.7 miles running
8,550 feet D+ running and treadmill
The first block of my training was dedicated to power and pure speed, The second to intense aerobic efforts. This last block is about going up and down technical mountain trails at my race pace or a bit faster. In practice, I push pretty hard for half of each climb, run the downhills as fast as I can, and otherwise keep it easy, but not slow.
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GeoServer Team: GeoServer 3.0-RC Release
GeoServer 3.0-RC is now available, with downloads for ( bin, war ), along with docs and extensions. We are working with OSGeo for the windows installer download, and will update this post when it is available. Windows users are asked to test out the bin download while we wait. Release available as docker image docker.osgeo.org/geoserver:3.0-RC .
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Narcélio de Sá: FOSS4G 2026: O Geoprocessamento Brasileiro em Hiroshima
É oficial! É com muita alegria e entusiasmo que confirmo minha participação no FOSS4G 2026 em Hiroshima! 🇯🇵
Para quem não está familiarizado, o FOSS4G é o maior evento do mundo dedicado ao software livre geoespacial. Organizado pela OSGeo, é o lugar onde desenvolvedores, usuários e entusiastas se reúnem para moldar o futuro das geotecnologias.
Gratidão à ComunidadeAntes de falar das apresentações, quero expressar meu profundo agradecimento à comissão organizadora. Sabemos que realizar um evento desta magnitude exige uma dedicação quase sobre-humana. O o trabalho de vocês é fundamental para fortalecer o ecossistema global de software livre geoespacial. Obrigado por tornarem isso possível!
...Sean Gillies: Quad Rock training week 13
Week 13 started out pretty strong. I returned to my favorite Monday evening yoga class, did a fun run with strides at Pineridge on Tuesday, and then a hard running interval workout on Towers Trail in Horsetooth Open Space on Wednesday. Thursday I had cold symptoms again and shifted to dog walking and bike riding for the rest of the week. The running numbers for the week are nothing much.
11 hours, 35 minutes all training
14.6 miles running
2,041 feet D+ running
By Saturday afternoon I felt much better, which gave me hope for a solid week 14.
OPENGIS.ch: QGIS Sustainability Initiative – Annual Report
At OPENGIS.ch, we believe that the long-term health of the QGIS ecosystem depends on more than just adding new features. Critical work like bugfixing, code reviews, codebase maintenance, and quality assurance often goes unnoticed, yet it is essential to delivering the stable, reliable software that thousands of organisations depend on every day. That is why we launched the QGIS Sustainability Initiative (#sustainQGIS). For every support contract of more than 10 days, we donate development time to the initiative. In addition, all unused hours at the end of the year of each contract are also donated. This ensures that buying an OPENGIS.ch support contract directly helps enable the long-term, sustainable development of the QGIS and QField ecosystem.
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OPENGIS.ch: QGIS Sustainability Initiative – Annual Report
At OPENGIS.ch, we believe that the long-term health of the QGIS ecosystem depends on more than just adding new features. Critical work like bugfixing, code reviews, codebase maintenance, and quality assurance often goes unnoticed, yet it is essential to delivering the stable, reliable software that thousands of organisations depend on every day. That is why we launched the QGIS Sustainability Initiative (#sustainQGIS). For every support contract of more than 10 days, we donate development time to the initiative. In addition, all unused hours at the end of the year of each contract are also donated. This ensures that buying an OPENGIS.ch support contract directly helps enable the long-term, sustainable development of the QGIS and QField ecosystem.
...QGIS España: ¿QGIS Camp España 2026? ¿Madrid o Granada?
Desde la Asociación QGIS España queremos compartir con la comunidad una reflexión abierta y, sobre todo, lanzar una consulta clave para la toma de decisiones de este año.
Como ya sabéis, en 2026 no se celebrarán las Jornadas de SIG Libre de Girona, un evento que durante años ha sido el principal punto de encuentro de la comunidad SIG Libre y que, además, servía de marco para la celebración de la QGIS Camp España, donde personas asociadas y usuarias de QGIS nos reuníamos para compartir experiencias, debatir sobre la herramienta y sobre el propio rumbo de la Asociación.
Creemos que la comunidad no debería quedarse sin su encuentro anual, y por ello desde la Asociación estamos valorando la posibilidad de celebrar la QGIS Camp España en 2026, manteniendo el espíritu participativo que siempre ha caracterizado a este espacio.
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OSGeo Announcements: [OSGeo-Announce] PROJ 9.8.1 is released
Warning It was discovered after the PROJ 9.8.0 release that several EPSG updates introduced after EPSG v12.033 – notably the introduction of national realizations of ETRS89 (ETRS89-XXX […] where XXX is the 3-letter ISO country code) – caused backward...
Est. reading time: 2 minutes
It’s my pleasure to announce the release of PROJ 9.8.1!
The release includes a few updates, bug fixes and a major regression fix for ETRS89-related coordinates operations.
See the release notes below.
Download the archives here:
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OPENGIS.ch: Sustainability initiative: what is it and why we do it?
At OPENGIS.ch, we create open-source software.
We are contributors, maintainers, and in the case of QField, the team that builds it.
That comes with a responsibility we take seriously: giving back.
“Give back” is not a slogan. It is our first core value, and the very reason the sustainability initiative exists.
Open-source is a garden. If you eat from it, water it, and keep seeding.
...PostGIS Development: PostGIS Patch Releases
The PostGIS development team is pleased to provide bug fix and security releases for PostGIS 3.2 - 3.6.
QGIS Blog: We’re Hiring! QGIS Administrative Assistant Wanted
QGIS.org is pleased to announce that we will be using some of the funding that is donated to us by our users and sustaining members to fund a dedicated administrative role for the project.
Principle duties:
...Lutra consulting: Lutra Consulting at FOSSGIS 2026: The Göttingen Wrap-up
Camptocamp: PMTiles: vector tiles supporting firefighters
Oslandia: (Fr) [Témoignage client] Julien Girard Claudon, DSI LPO AuRA
Sorry, this entry is only available in French.
GeoSolutions: GeoSolutions USA Sponsoring FedGeoDay 2026 – “Building Ecosystems for Supporting Federal Data Stewardship”
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Jackie Ng: New plans and stuff
So after finally getting MapGuide Open Source 4.0 out the door, I took a self-imposed hiatus from all things mapping/GIS related for several months, permanently moved from Windows to Linux as my daily driver OS just in time before the end of Windows 10 support, and also to mentally recharge and savor the relief of having this major burden (of releasing MGOS 4.0) being finally lifted off of my back.
I now return with a renewed vigor and some rough roadmaps for things going forward in MapGuide and my other various projects. Part of that renewed vigor is due to the advent of ...
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Nick Bearman: Generative AI Tools for Mapping
David Bann and Liam Wright have put together a great guide to Generative AI Tools for Quantitative Research on the NCRM resources site. This is a great overview of what Generative AI is, how it works and all of the potential different models available, both commercial and open source, as well as how to run some models locally rather than relying on the cloud.
They are also very focused on the practical elements of how to actually use the tools in your work, discussing the different approaches as well as highlighting the importance of making sure you do not share sensitive data with cloud services.
They also have a great selection of videos for setting up both cloud based and local LLMs for working with Stata and R scripts in a number of tools including VS Code:
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Sean Gillies: Quad Rock training week 12
In week 12, I started to get things back on track after being sick. I ran five days, biked one day, and took Saturday off to take my family to a Nuggets game in Denver.
12 hours, 9 minutes all training
34.8 miles running
5,800 ft D+ running (and treadmill)
My energy level was low to mid until Friday, when I rallied for a good interval workout on a 12% incline treadmill indoors and a sauna session after. My fitness didn't advance much in week ten, but I didn't lose a step. According to the machine, I went "up" beyond any of the Quad Rock climbs, and at a pace that I'd love to hit on race day.
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GIScussions: Critical Minerals – The Global Supply Chain
Listening to the news about the impact of the current war and the closure of the Strait of Hormuz, I was prompted to think about critical minerals that could also have massive disruptive impact in geopolitical turmoil.
I asked Claude “Can you build a dataset of the most critical minerals, where they are mined (mine sites or countries), shares of world production, price changes over 5-10 years, main usages so that we can build a map of these commodities. Build it in a way that we can extend if we find more data” and it found me some data using these sources:
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Ecodiv.earth: OmniCloudMask for cloud detection
Cloud masking is one of those steps you cannot really avoid when working with satellite data. Yet, it is often more cumbersome than it needs to be: different sensors come with different workflows, tools, and preprocessing requirements.
That is why I like OmniCloudMask. It is a Python library for cloud and cloud shadow detection in high to moderate resolution satellite imagery. Instead of relying on sensor-specific approaches, it uses a single model that generalizes across platforms.
According to the documentation, it supports resolutions from 10 m to 50 m and works with imagery from Sentinel-2, Landsat, PlanetScope, Maxar, and other sensors with Red, Green, and NIR bands. In practice, however, it also performs well on higher-resolution data, such as the 1.2 m Pléiades NEO imagery used in this example.
...Sean Gillies: Quad Rock training week 11
I had big plans for week eleven and then came down with a cold. My Wednesday workout's mediocre feeling was the first indication. The rest of the week I shifted into recovery rides and easy runs.
10 hours, 23 minutes all training
19.2 miles running
2,306 ft D+ running
It wasn't a terrible week, to be clear. I didn't fall apart physically, or anything like that. My concern is that it was the first week where I didn't progress very much in my Quad Rock training season.
GIScussions: Find Cheap Fuel Near Me – APIs and cron jobs
Having knocked up a simple fuel finder based on a csv download from the government site at the beginning of the week I thought “How difficult could it be to make something more functional and elegant and connect to the government fuel finder API?” Answer – the “more functional and elegant” not too difficult – about 3 hours of vibe coding, Connecting to the API and refreshing regularly – pretty damn hard even with Claude helping me.
For comparison here is the first version using a downloaded file
The map pins are simple, the pop-up has limited info and worst of all there are all those miscoded petrol stations in the North Sea.
...OSGeo Announcements: [OSGeo-Announce] OSGeo Ambassador Programme: Call for Participation
https://www.osgeo.org/foundation-news/osgeo-ambassador-programme-call-for-participation/
In line with its commitment to increase the impact of the organization, OSGeo is excited to announce its new Ambassador Programme.
What is an OSGeo Ambassador?
Someone who helps OSGeo to grow its financial resources through fundraising. These are some fundraising activities that we would love for an ambassador to explore:
• Engage with Organizations such as the European Commission (EC), or the United Nations (UN), to seek grants and other opportunities.
• Liaison with commercial companies and acquire new sponsors.
We acknowledge that it may not be easy for everyone o approach many of these organizations. An ideal candidate would be someone who already has a strong professional network that they can leverage.
...Volker Mische: Atmospheric data portals reply
This is a reply to David Gasquez’ blog post Atmospheric Data Portals. As there’s so much in it and much of it overlaps with future plans, I thought it makes sense to write a proper public reply instead of following up in a private conversation.
First of all, read his blog post and follow the many links, there is so much to discover.
One re-occurring thing in the documents linked from the “issues on the earlier stages of the Open Data pipeline” section is that for most portals a static site should be sufficient. I fully agree with that. When it’s done properly, an automated rebuild of some parts when new data is added should work well. These days even powerful client-sided search is possible.
...Volker Mische: FOSSGIS 2026
This is a short write-up on the FOSSGIS 2026 conference. It’s a German speaking conference on free and open source geographic information systems and OpenStreetMap. So maybe a blog post in English spreads the word even wider.
While being the biggest edition ever (1000 registrations on-site, 300 online) it was well run and organized as every year. It didn’t even feel larger than usual. The CCC video team streamed live and published the cut videos the same day in outstanding quality as always.
I split this post into two sections, one about interesting talks for the geo world in general and then follow up discussions on my Matadisco talk and ATProto in general.
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GIScussions: Petrol Prices in the North Sea
This morning there was a lot of amused banter amongst my geo-pals about the UK Government’s Fuel Finder API based on an article in The Times (possible paywall) on the problems with the data. You can download the data or access the api from the gov.uk site.
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GIScussions: National Symbols – from zero to hero in an hour
I was thinking about what map to make next and I thought about flags, national symbols like birds or animals.
I started out with a very simple prompt to see what Claude would come up with:
I want to make an interactive map of national symbols: Flags, Trees, Flowers, Animal, Symbols,Anything else you can suggest?
It chundered away for a few minutes and came up with this monster
Yes it is truly awful! You can click on the map above to see it in action, it sort of works but the map part is rubbish (but probably represents Claude’s limited sense of world geography) and the linked data is pretty flaky as well. When I challenged Claude it explained that it was using “training data” I guess that means “any old crap that I could scrape.
...OSGeo Announcements: [OSGeo-Announce] Thank you Angelos, outgoing OSGeo President
https://www.osgeo.org/foundation-news/thank-you-angelos-outgoing-osgeo-president/
After years of service, Angelos Tzotsos is stepping down as President of OSGeo and will continue to serve on the Board of Directors for the remainder of his term. We want to take this opportunity to thank him for his leadership on behalf of the community.
Angelos joined the OSGeo Board in 2016 and has served as President since 2019. Over that period, he has been a consistent and active contributor. Not only in his governance role, but also as a developer and project leader across several key OSGeo projects.
He has been a regular presence at code sprints, FOSS4G events and other international conferences, actively representing and advocating for OSGeo and open geospatial software.
Angelos is a true leader by example as demonstrated during his time as the President of OSGeo.
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KAN T&IT Blog: GeoNode 5: un nuevo comienzo para las Infraestructuras de Datos Espaciales
El pasado webinar organizado por KAN Territory & IT reunió a la comunidad geoespacial de habla hispana para presentar las principales novedades de GeoNode 5 y explorar cómo evoluciona el ecosistema hacia arquitecturas modernas basadas en la nube.
En este artículo, resumimos los principales conceptos y avances compartidos durante el encuentro.
GeoNode es una plataforma open source diseñada para la gestión, publicación y análisis de datos geoespaciales, ampliamente utilizada para construir Infraestructuras de Datos Espaciales (IDE) y sistemas SIG.
¿Qué es GeoNode y por qué sigue siendo clave?Permite a organizaciones:
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Stefano Costa: Qual è la colonna sonora di un gasometro?
Non è facile cominciare a raccontare questa storia, quindi comincio da dove mi viene in mente. Avete presente un gasometro? Avete mai visto un gasometro dal vivo o in foto, in video, in televisione? Fino ad alcuni anni fa per me era una parola un po’ strana eppure è diventato uno dei luoghi con cui ho a che fare più spesso nella mia vita quotidiana. A Ventimiglia, dentro un’area archeologica romana abbastanza famosa e importante, ci sono due gasometri. Alcuni anni fa ho iniziato a occuparmi di questi due gasometri e di tutto quello che ci sta intorno che si chiama Officina del Gas è un impianto abbastanza grande, di 12.000 m² che dal 1906 al 1993 ha funzionato per dare il gas alla città.
Prima di iniziare a lavorare veramente alla realizzazione del progetto, con alcune persone molto preparate ho iniziato a studiare la storia di questo luogo e a farmi raccontare dalle persone che ci vivono accanto che cosa rappresenta per loro.
...Sean Gillies: Quad Rock training weeks seven, eight, nine, and ten
I'm squishing four weeks worth of recap into this one post.
First, the numbers.
40 hours, 32 minutes all training
99 miles running
15,600 ft D+ running (and treadmill)
I'm less concerned with miles than I used to be, but I'm still writing these numbers down for continuity's sake.
I'm running four days a week and riding or other cross-training 2-3 days. Two of my runs are easy, but not slow. One has some high intensity intervals or hill sprints. The other is a 2-3 hour run with 45-60 minutes of tempo pace in the middle. My top speed hasn't increased in the past four weeks, but my easy pace has improved a lot. With five more weeks of training ahead before I begin to taper off, I'm looking forward to getting even faster at zones 2 and 3.
...SourcePole: FOSSGIS 2026 Göttingen
Sourcepole hat an der FOSSGIS 2026 in Göttingen verschiedene Themen mit Vorträgen abgedeckt:
- Datenkataloge mit STAC und OGC API Records
- Volltextsuche in Echtzeitdaten mit pg_search
- Kollaboratives GIS mit Jupyter Notebooks und JupyterGIS
- QGIS Web Client (QWC) – Neues aus dem Projekt
Mergin Maps: [Blog] Support tip - using conditions to improve your Mergin Maps survey
Lutra consulting: ArcMap is Dead: Great Time to Switch to QGIS
gvSIG Team: La Asociación gvSIG se incorpora a la Red Iberoamericana de Observación Territorial
La Asociación gvSIG pasa a formar parte de la Red Iberoamericana de Observación Territorial (RIDOT), una iniciativa que reúne a instituciones y profesionales comprometidos con el análisis, la gestión y la comprensión del territorio en el ámbito iberoamericano.
Esta incorporación refuerza el compromiso de la Asociación gvSIG con la colaboración internacional y con el impulso de infraestructuras de datos espaciales, estándares abiertos y tecnologías basadas en software libre como pilares para la toma de decisiones y la gestión territorial.
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Volker Mische: Matadisco
Open data is only as useful as it is discoverable. Finding datasets, whether it’s satellite imagery, scientific research, or cultural archives involves navigating dozens of siloed portals, each of them with different interfaces and APIs. Project Matadisco tries to solve this by using ATProto to create an open, decentralized network for data discovery. Anyone can publish metadata about their datasets. You can then pick the records that matter to you and build views for the specific needs of your community. By focusing on metadata rather than the data itself, the system works with any dataset format, keeps records lightweight, and remains agnostic about storage.
...Fernando Quadro: Como criar seu próprio Catálogo STAC
Prezado leitor,
Se você trabalha com dados geoespaciais, principalmente rasters, provavelmente já esbarrou em problemas como:
- Dificuldade de organizar grandes volumes de dados
- Falta de padronização na publicação
- APIs pouco eficientes para busca espacial/temporal
É exatamente aqui que entra o STAC (SpatioTemporal Asset Catalog). Mais do que um formato, o STAC é um padrão moderno para organizar, catalogar e acessar dados geoespaciais, permitindo buscas rápidas e interoperáveis.
Neste guia, você vai aprender a montar um ambiente completo para:
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GIScussions: Heatmap from Graphic to Interactive
Spoiler Alert: This is a pretty geeky post that may only appeal to Dead Heads!
I had an idea to go back to my Dead Reckoning project to look at the frequency that different songs were played by the Grateful Dead over the 31 years of gigging. I had already extracted the set lists for nearly all of the 2,313 shows the band played between 1965 and 1995 from JerryBase so I thought this would be relatively simple (it never is).
I asked Claude to parse the 31 years of gig files and make a table ranking the top 100 songs played over this period and showing the number of times played in each year and what percentage of gigs it was played as an indicator of the band’s favourites over time. This was nice and easy and after one small tweak I had a nice table.
...OSGeo.nl: Eerste editie OSGeoNL Startersdag!
Ben je nieuwsgierig naar geo, maar weet je niet waar te beginnen? Of wil je overstappen naar open source software? Dan is de OSGeoNL Startersdag dé kans om een dag lang laagdrempelig kennis te maken met het open source geo-landschap.
Wat kun je verwachten?- Inspirerende workshops door bedrijven en organisaties gespecialiseerd in open source geo.
- Zeer divers aanbod workshops met onder andere: Introductie GIS Essenties, QGIS, GrassGIS, MapLibre en PostGIS.
- Concrete voorbeelden en use cases: ontdek wat mogelijk is en wanneer je open source software toepast.
- Beginners in geo
- Mensen die willen overstappen naar open source software
- Iedereen die een nieuwe geo-tool wil leren
Kom ontdekken wat open source geo-software voor jou kan betekenen, maak nieuwe connecties en laat je inspireren!
QField: QField 4.1 "Barents Sea": Dive into the third dimension and coordinate geometry operations!
QField’s first release of the year comes packed with new features as well as a bundle of improvements and polishing. Let’s jump right into it.
Main highlights 3DThis new version of QField comes with a shiny 3D map view, giving users the ability to render their map content on top of a three-dimensional terrain.
Users can rotate the terrain geometry to get a better understanding of elevation profiles, while also adjusting the plane’s extent by panning and zooming with drag and pinch gestures. When the GNSS positioning service is enabled, the user’s current position, as well as ongoing tracking sessions, will be overlaid on top of the 3D terrain geometry.
...GeoTools Team
GeoServer Team: GeoServer 2.28.3 Release
GeoServer 2.28.3 release is now available with downloads (bin, war, windows), along with docs and extensions.
This is a maintenance release of GeoServer providing existing installations with minor updates and bug fixes. GeoServer 2.28.3 is made in conjunction with GeoTools 34.3, and GeoWebCache 1.28.3.
Thanks to Andrea Aime (GeoSolutions) for making this release.
...QField: Brand Guidelines
We’re thrilled that you want to refer to the QField project and sincerely appreciate your help in spreading the word.
This page provides all the information and resources you need to correctly use the QField brand assets.
These guidelines are based on the QGIS.org trademark guidelines.
Trademark Goals: Our main aim is to encourage those who do business using the QField name and logo to:
GIScussions: Environmental Impact of Airports – Wrestling with Data
I was looking for a simpler project to build after my last couple which had proved more complicated than I had anticipated. I came up with the idea of mapping airports and finding some data on their environmental impact – good idea, but not so easy.
Finding a dataset of airports was relatively easy, the OurAirports dataset has excellent coverage but sourcing open data about passenger numbers or emissions associated with specific airports was challenging to say the least. Eventually I settled for US, UK and EU airports where there was good passenger data from the US FAA, EU Eurostat and UK CAA. Maybe I will come back to this project in the future and try to build out to cover more regions.
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gvSIG Team: gvSIG Batoví: el SIG en las aulas
Hace ya algunos años nació gvSIG Batoví, una iniciativa orientada a acercar los Sistemas de Información Geográfica (SIG) al ámbito educativo en Uruguay, especialmente en educación primaria y secundaria.
Su objetivo sigue siendo plenamente vigente: facilitar a docentes y alumnado la comprensión del territorio a través de herramientas geoespaciales abiertas.
gvSIG Batoví es una distribución de gvSIG Desktop adaptada al entorno educativo, pensada para que el uso de los SIG en el aula sea accesible, práctico y motivador.
...QGIS Blog: QGIS Sustaining Member Campaign 2026
QGIS 4.0 is out. After years of work by hundreds of volunteers and organisations around the world (migrating to Qt6, reworking the codebase, shipping over 100 new features on top) we have a platform that will serve the community for the next decade. That’s worth celebrating.
It’s also a good moment to be honest about what it takes to keep a project like this healthy, and to ask for your help.
Become a sustaining member ...
Nick Bearman: QGIS 4.0 is now available - but don’t upgrade….. yet!
QGIS 4.0 is now available! But yes, you have read my title correctly - I would recommend many people don’t upgrade…. yet.
QGIS 4.0 is an ‘Early Adopter’ version - which means that there are new things in there that may break. I would also say for many basic users (and some intermediate users) there isn’t much new that’s changed, so you are not missing out on much (see below for some new things coming up).
Many of the changes for 4.0 are under the hood, so that’s why you won’t see many differences. These changes are important - and will make the software more reliable and easier to maintain.
Rather than upgrading now, I would recommend waiting until 4.2 is released (about July 2026) and by this point QGIS will be more stable, and it will be fine to upgrade then.
...GeoSolutions: MapStore 2025.02 Release
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QGIS Blog: Welcoming our latest flagship sustaining member – COSS
It is with great pleasure that we would like to welcome COSS as our latest flagship sustaining member!
The COSS National QGIS collaboration launched in Finland to safeguard the sustainability of critical geospatial technology.
About COSSCOSS aims to ensure the sustainability of the open source QGIS geospatial software that is essential to many public organizations’ operations, maintaining up-to-date security updates, and realizing productivity benefits from coordinated development. The collaboration is based on coordination among public authorities and on supporting the international QGIS community.
...QGIS Blog: QGIS Grants #11: Call for Grant Proposals 2026
Dear QGIS Community,
We are very pleased to announce that this year’s round of grants is now available. The call is open to anybody who wants to make a contribution to QGIS funded by our grant fund, subject to the call conditions outlined in the application form.
This year’s budget is €40k and the deadline for the proposals is in four weeks, on Monday, 13 April 2026. Here’s the full timeline:
...QGIS Blog: Reports from the winning grant proposals 2025
With the QGIS Grant Programme 2025, we were able to support 6 enhancement proposals that improve the QGIS project. The following reports summarize the work performed:
...Adam Steer: “No” is a good way to limit “AI” risks.
TorchGeo: v0.8.0
TorchGeo 0.8 includes 28 new pre-trained model weights and a number of improvements required for better time series support, including a complete rewrite of all GeoDataset and GeoSampler internals, encompassing 8 months of hard work by 23 contributors from around the world.
Highlights of this release Open and independent governanceYou may have noticed that https://github.com/microsoft/torchgeo is now https://github.com/torchgeo/torchgeo. This is not an accident!
Note
TorchGeo now belongs to YOU, please join our monthly Technical Steering Committee meetings!
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Fernando Quadro: O que é COG e por que ele está mudando a forma de publicar rasters
Dados raster estão entre os datasets mais pesados do mundo GIS. Ortomosaicos, imagens de satélite e modelos digitais de elevação frequentemente possuem dezenas ou até centenas de gigabytes.
Historicamente, trabalhar com esses arquivos sempre foi um desafio para profissionais de geotecnologia. Entre os principais problemas estão:
- Leitura lenta de arquivos grandes
- Alto consumo de disco
- Necessidade de armazenamento local
- Dificuldade de uso em ambientes cloud
- Baixa escalabilidade em servidores GIS
Foi nesse cenário que surgiu o Cloud Optimized GeoTIFF (COG).
Hoje o COG é considerado um dos formatos mais importantes para infraestruturas modernas de dados geoespaciais, permitindo trabalhar com rasters gigantes de forma muito mais eficiente.
Neste artigo vamos entender:
...gvSIG Team: Ya disponible el vídeo del webinar “Geomática hoy: del levantamiento al gemelo digital”
El pasado 11 de marzo tuve el placer de impartir el webinar “Geomática hoy: del levantamiento al gemelo digital con datos abiertos, IA y estándares”, organizado por la Delegación Territorial de la Comunidad Valenciana y Región de Murcia del Ilustre Colegio Oficial de Ingeniería Geomática y Topográfica (COIGT) en colaboración con la Asociación gvSIG.
En la sesión compartí una reflexión sobre cómo está evolucionando la geomática: desde los levantamientos tradicionales hasta enfoques más avanzados basados en datos abiertos, interoperabilidad, análisis geoespacial e inteligencia artificial, que permiten construir desde inventarios territoriales hasta gemelos digitales del territorio para apoyar la toma de decisiones.
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Fernando Quadro: Publicando rasters com COG + S3/MinIO + GeoServer
Quando trabalhamos com ortomosaicos ou rasters muito grandes, um dos principais desafios é como armazenar e publicar esses dados com boa performance, sem sobrecarregar o servidor GIS.
Uma arquitetura moderna que vem sendo cada vez mais utilizada é baseada em:
- Cloud Optimized GeoTIFF (COG)
- MinIO ou Google Cloud Storage ou Amazon S3 (Object Storage)
- GeoServer
Essa combinação permite que o GeoServer leia diretamente rasters armazenados em object storage, sem precisar copiá-los para o servidor.
Neste post vou mostrar um passo a passo simples e prático para implementar essa arquitetura:
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gvSIG Team: Webinar Geomática hoy: del levantamiento al gemelo digital con datos abiertos, IA y estándares
Hoy tengo el placer de impartir el webinar “Geomática hoy: del levantamiento al gemelo digital con datos abiertos, IA y estándares”, organizado por la Delegación Territorial de la Comunidad Valenciana y Región de Murcia del Ilustre Colegio Oficial de Ingeniería Geomática y Topográfica (COIGT).
La idea de la sesión es compartir una reflexión sobre el momento tan interesante que vive la geomática. Nunca antes habíamos tenido a nuestra disposición tantos datos, tanta capacidad de procesamiento y tantas herramientas para transformar la información geoespacial en conocimiento útil para la toma de decisiones.
...Camptocamp: Behind the Scenes: Building Geo Challenge with Open Source Geospatial Tech
QGIS Blog: QGIS 4.0 Norrköping is released!
The wait is over! We are pleased to announce the new major release of QGIS 4.0.
Installers for Windows, Linux, and Mac are already out.
What’s new?On the surface, existing users should expect to engage with a QGIS experience familiar to what they have come to know and love from previous releases. Under the hood, however, 4.0 introduces significant changes to maintainability and usability. These changes ensure that QGIS 4.0 can unlock additional access to modern libraries while bringing much-needed performance and security improvements to the code base.
...
gvSIG Team: Some notes on the Roadmap to accelerate digital sovereignty
In recent days, the Roadmap to Accelerate Digital Sovereignty in Spain has been presented, a document that reflects something that has been becoming increasingly clear for some time now: digital sovereignty has ceased to be an abstract concept and has become a strategic issue. We are no longer talking only about innovation, but about decision-making capacity, resilience, technological autonomy, and control over critical infrastructures. Technological dependence is a structural vulnerability.
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gvSIG Team: Algunas notas sobre la Hoja de Ruta para acelerar la soberanía digital
En los últimos días se ha presentado la Hoja de Ruta para acelerar la soberanía digital en España, un documento que refleja algo que desde hace tiempo resulta cada vez más evidente: la soberanía digital ha dejado de ser un concepto abstracto para convertirse en una cuestión estratégica. Ya no hablamos solo de innovación, sino de capacidad de decisión, resiliencia, autonomía tecnológica y control sobre infraestructuras críticas. La dependencia tecnológica es una vulnerabilidad estructural.
...
gvSIG Team: Novedades gvSIG Desktop 2.7: Swipe o cortinilla para comparativa de cartografía
La nueva versión gvSIG Desktop 2.7 incluye la herramienta de Swipe o Cortinilla. Con esta herramienta es posible comparar cartografía diferente de forma sencilla, como por ejemplo dos ortofotos de años diferentes.
El funcionamiento de esta herramienta es a partir de dos vistas diferentes, donde en cada una de ellas se deberá tener una de las capas a comparar. El usuario podrá elegir la opción de realizar cortinilla de forma vertical u horizontal, y se aplicará sobre las capas que se tenga visibles en ese momento en las dos vistas. Una vez seleccionadas ya solo deberá desplazar la barra central horizontalmente o verticalmente para poder ver las diferencias.
En este vídeo te mostramos el funcionamiento:
Le blog de Geomatys: Discrete Global Grid Reference System (Part.1)
QGIS Blog: Call for contributions: QGIS User Conference & Contributor Meeting 2026
The call for papers is now open! We welcome proposals for talks and workshops from all levels of expertise, end users, technical developers, academics, and community contributors alike.
Deadline: 12 April 2026 at 23:59 (Europe/Zurich)
Submit your proposal: https://conference.qgis.org/presenting/
Important Dates Call for Papers opens5 March 2026Call for Papers deadline12 April 2026 at 23:59 (Europe/Zurich)Speaker notifications29 May 2026Conference5–6 October 2026 TopicsSubmissions can cover any topic relevant to the QGIS community, for example:
...
Martin Davis: Fast Hausdorff Distance and isFullyWithinDistance in JTS
My previous blog post reviewed the concept of the Hausdorff distance (which more descriptively could be called farthest distance.) Despite its usefulness in matching geometric data, there are surprisingly few open-source implementations, and seemingly no efficient ones for linear and polygonal data. This even includes CGAL and GRASS, which are usually reliable for provising a wide spectrum of geospatial operations.
...
TorchGeo: v0.7.0
TorchGeo 0.7 adds 26 new pre-trained model weights, 33 new datasets, and more powerful trainers, encompassing 7 months of hard work by 20 contributors from around the world.
Highlights of this releaseNote
The following model and dataset descriptions were generated by an imperfect human, not by an LLM. If there are any inaccuracies or anything else you would like to highlight, feel free to reach out to @adamjstewart.
...Stefano Costa: I libri e tutto il resto nel 2025
Ebbene sì, cara lettrice, anche nel 2025 ho letto, ho visto, ho guardato, ho ascoltato, ho fatto cose sia stando fermo dove ero sia muovendomi. Da un certo punto di vista tutto quello che segue in questo articolo è nullo perché il 2025 è stato l’anno di un blando ma importante risveglio dal torpore e sono andato alcune (o tante, punti di vista) volte in piazza a mettere il mio corpo per il popolo di Gaza. Ma da un altro punto di vista tutto quello che segue è esattamente quello che bisogna fare per non vendere le nostre vite allo stesso sistema che ci divora, ci rende complici. Nulla di tutto questo è intrattenimento, tutto è sbattimento, tutto è amore, tutto è rabbia.
...EOX' blog: Visualizing GeoZarr: The EOPF-Explorer Frontend Stack
Camptocamp: AI Does Not Replace Design — It Strengthens Collective Intelligence
Fernando Quadro: Como instalar plugins do GeoServer no GeoNode 5
Prezado leitor,
Se você instalou o GeoNode 5 via Docker (GeoNode Project) e precisa adicionar um plugin que não vem na instalação padrão do GeoServer, este guia vai te mostrar como fazer isso da maneira correta e reproduzível.
No meu caso, estou utilizando:
- GeoNode 5.0.0
- GeoServer 2.27.3
O objetivo é instalar o plugin Resource Browser Tool, que permite navegar e gerenciar arquivos do GeoServer diretamente pela interface web.
1. Baixar o plugin:
O plugin precisa ser exatamente da mesma versão do GeoServer. Como estou usando a versão 2.27.3, o plugin também deve ser 2.27.3.
...
Martin Davis: The Hausdorff Distance Challenge
The Hausdorff Distance is a useful spatial function which can appear slightly mysterious. Partly this is due to the name. It honours Felix Hausdorff, one of the founding fathers of topology, and a polymath who was creative in music and literature as well as mathematics.
...Propulsé par FreshRSS | 181 articles dans cette sélection

