Screenshots from the webinar
The recording of Wednesday’s webinar “QGIS 4 for Water: What’s New, What’s Next?” is now available on the YouTube channel of the #AustralianWaterSchool! With @geomenke.bsky.social, Yonas Asfaha myself.
📹 Watch it here: youtu.be/vnHxLHHz-ZQ
#QGIS #GIS #FOSS4G #OSGeo
New video: review of the AI Segmentation by #TerraLab plugin that allows smooth image segmentation in QGIS based on Meta's Segment Anything Model.
Watch it on:
📺YouTube: youtu.be/oKxh8ldYflM
📺QwastTube: videos.qwast-gis.com/w/d8RMLJzcm1...
#QGIS #GeoAI #segmentation #SAM #OpenSource #GIS
QGIS for Hydrological Applications channel on QwastTube
All 60 videos from #QGIS for Hydrological Applications – 2nd Edition are now in the #Fediverse on #QwastTube! 🎉
Watch the full series here: videos.qwast-gis.com/c/qgishydro #PeerTube #QGISHydro
Tree Crown Segmentation in QGIS using DeepForest and GeoAI Plugin
Learn how to detect and segment trees from satellite imagery using the QGIS GeoAI plugin with DeepForest pre-trained models. This comprehensive tutorial covers installation, setup, and tree detection workflow, no coding required
QwastTube GISOpenCourseWare channel home page.
Videos at QwastTube
I’m launching #QwastTube, a #PeerTube based, privacy‑friendly alternative to my YouTube channel.
I’m still importing videos, but it’s already live:
👉 videos.qwast-gis.com
YouTube will stay in sync for now, but I hope you’ll join me on the #fediverse.
Gemeente Purmerend lid van QGIS Gebruikersgroep Nederland
Welkom @gemeentepurmerend.bsky.social als nieuw bedrijfslid van de QGIS Gebruikersgroep Nederland! Met hun lidmaatschap sluiten ze zich aan bij een groeiende gemeenschap. Hun bijdrage is van onmisbare waarde voor onze vereniging en #QGIS! Meer info: qgis.nl #QGISNL
OSGeo Nieuwjaarsborrel
Afgelopen zondag was de jaarlijkse nieuwjaarsborrel van #OSGeoNL, #OSMNL & #QGISNL in Utrecht.
💬 Een middag vol inspiratie en nieuwe ideeën!
🌍 Op naar een jaar vol creativiteit, kennisdeling en sterke netwerken!
Dankjewel Epco voor de eetbare versie van #QGIS ons logo!
🎉 Mooi nieuws!
#QGISNL is ook in 2026 weer Large Sustaining Member van QGIS.ORG! Dank aan alle (bedrijfs)leden. Samen zorgen we dat open source GIS blijft groeien en bloeien! 🌍
Meer over het Sustaining Membership Programme: qgis.org/funding/memb...
#QGIS #OpenSource #GIS #OSGeoNL
Open course on programming basics for QGIS Users
🎉 New year, new #GIS skills!
⌨️ Learn scripting in #QGIS with my free course at @gisopencourseware.bsky.social: no complex setup, just start from QGIS.
Topics:
#GDAL #CLI
#Python basics
#PyQGIS with the Notebook plugin ✨
👉 courses.gisopencourseware.org/course/view....
NASA Earthdata QGIS Plugin v0.2.0 has been released!
It now supports highlighting selected footprints and clearing search results without resetting other settings.
Use the plugin update checker to update the plugin to the latest verion with a simple click.
Compare Layers Visually in QGIS — New Leafmap Plugin Demo!
Whether you're working with raster or vector data, this tool brings interactive transparency controls and a layer swipe feature right into your QGIS environment.
Group pictures with QGIS certificates issued in 2025
In 2025 I issued 146 official #QGIS certificates via #IHEDelft & #QWAST 🎉
Each adds €20 to QGIS ➡️ €2,920 raised!
Explore trusted learning paths:
🔸 QGIS Certifying orgs: certification.qgis.org/en/
🔸 IHE Delft: www.un-ihe.org/education
🔸 QWAST: www.qwast-gis.com/courses/
#GIS #LifeLongLearning
The QGIS Notebook Plugin v0.2.0 is now available! 🎉
New features:
🌟 Light theme for a fresh look
✂️ Clear outputs for selected cells
➕ Insert code snippets directly into your notebooks
🚀 Run Jupyter Notebooks Directly Inside QGIS! | QGIS Notebook Plugin Tutorial
Want to combine the power of QGIS with the flexibility of Jupyter Notebooks? In this step-by-step tutorial, you'll learn how to install and use the QGIS Notebook Plugin to run Jupyter Notebooks inside the QGIS interface.
Uitnodiging nieuwjaarsborrel QGISNL, OSGeoNL & OpenStreetMapNL
Wij wensen iedereen fijne feestdagen en een nieuw jaar vol creativiteit en samenwerking!🎄✨️
🥂Op 18 januari organiseren we de jaarlijkse nieuwjaarsborrel i.s.m. #OSGeoNL & #OpenStreetMapNL. Je bent vanaf 14 uur welkom in De Kargadoor, Utrecht. 🔗Aanmelden: pretix.eu/foss4gnl/nie...
Net voor de kerstvakantie gaf #QGISNL een inspirerende workshop op het #GoeseLyceum! 👩💻
Samen met @dirkvoets.bsky.social werkten leerlingen van het #Technasium met #QGIS en maakten een opdracht over #klimaatverandering. Technator Hans Braakman verwacht QGIS vaker in te zetten. 🚀
#GISOnderiwijs
🎥 Just released a new video exploring the #QGIS #GeoAI plugin, a powerful way to bring #AI into everyday mapping workflows. Watch here: youtu.be/PMEZaW71YSA
Thanks to @giswqs.bsky.social for his brilliant work and clear documentation!
Winner of the theory quizzes
Group picture with certificates
Today, 28 MSc students in Water & Sustainable Development at #ihedelft received the official #QGIS certificate. The winner of the theory quizzes received a signed copy of QGIS for Hydrological Applications. Congrats to all and good luck with your studies!
#GIS
The new Base Map of Green & Paved Surfaces for the Netherlands shows, at 25 cm resolution, how every raindrop meets its environment. From tree canopy to pavement. It's available in the Climate Impact Atlas. #Friedenau #CAS
👉Read my blog for more info: www.qwast-gis.com/l/how-green-...
Neighbourhood Dashboard
I was interviewed about a great new #opendata #gis layer on imperviousness in the Netherlands developed by #Friedenau Society for #KlimaatEffectAtlas. Read here: klimaatadaptatienederland.nl/actueel/actu...
#30DayMapChallenge 2025
This year's #30DayMapChallenge was a bit challenging due to my activities in November: 9 concerts, teaching, trips to Algeria and Morocco... Read the new blog on the #QWAST website on how I made each map. www.qwast-gis.com/l/30daymapch...
#30DayMapChallenge Day 30: Makeover
#30DayMapChallenge Day 30 – Makeover
Traveling today to Marrakech 🇲🇦 for a water trade mission, so I kept it simple. I revisited my Day 2 map and turned the Schie, Coolsingel & Goudsesingel back into water bodies 💧.
Stronger blue infrastructure = better climate adaptation.
#30DayMapChallenge Day 29: Raster
#30DayMapChallenge Day 29: Raster
#LiDAR DSMs often leave nodata voids at water bodies, breaking shadow modeling. For Rotterdam, I used the 0.5 m AHN4 DSM and filled gaps with my #QGIS script from the Resources Hub 👉 hub.qgis.org/scripts/4 (install via QGIS Hub plugin).
🎦 youtu.be/79yFgVLvuZM
#30DayMapChallenge Day 28: Black
#30DayMapChallenge Day 28: Black
On this Black Friday, I found today’s theme in the depths of the Black Sea.
Using the @opentopography.org DEM Downloader, I grabbed the Global Bathymetry SRTM15+ V2.1 dataset, calculated 100 m contours, and applied the Tanaka method with a style from the #QGIS Hub.
#30DayMapChallenge Day 27: Boundaries
#30DayMapChallenge Day 27: Boundaries
Mapped the world’s transboundary aquifers (IGRAC 2025). These underground reserves cross borders, showing water connecting us beyond geopolitics.
💧 Shared responsibility, shared future.
#GIS #QGIS #WaterDiplomacy
#30DayMapChallenge Day 26: Transport
#30DayMapChallenge Day 26: Transport 🚇
Still in Algeria, so I kept it simple: vector tiles via @maptiler.bsky.social + #OpenStreetMap in #QGIS to show public transport in Algiers.
The Algiers Metro is Africa’s 2nd metro after Cairo, opened in 2011.
#30DayMapChallenge Day 25: Hexagons
#30DayMapChallenge Day 25: Hexagons
Busy with a water seminar organised by the Dutch embassy in Algiers, I had little time to map. So I turned to the HDX dataset of 400 m H3 hexagons and plotted the population density of the Netherlands in 2023.
#GIS #QGIS #Cartography #OpenData
#30DayMapChallenge Day 24: Places and their names
#30DayMapChallenge Day 24: Places and their names
I mapped toponyms linked to medieval cope contracts: agreements that allowed settlers to drain and farm peatlands.
Names ending in ‑cop, ‑koop, ‑kop all trace back to this hostory. The naming tradition even spread to northern Germany and Poland.
#30DayMapChallenge, day 23: Process
Flow directions in the French Alpes with a 5 m RGEALTI DTM (IGN France). Using #QGIS’s new native Fill Sinks (Wang & Liu), I calculated flow directions, converted them to a mesh via #Crayfish, styled with arrows, and visualised in #3D.
🎥 youtu.be/ttLxQBe0HIo
#30DayMapChallenge Day 22
#30DayMapChallenge Day 22 – Data: #Natural Earth 🌍
⏳ With limited time I used my own tutorial to make a population map in #QGIS.
🔗 Tutorial: courses.gisopencourseware.org/mod/book/vie...
🎥 YouTube:
👉 Symbolizing points: youtu.be/0PEZ8dUNCJk
👉 Collapsed legend: youtu.be/hxzNOf3ppbQ
