📊 Mapping the world's ocean isn't only about collecting new data. Valuable bathymetric data already exist in many organisations around the world. When those datasets can be shared, processed and integrated, they help improve our collective understanding of the seafloor.
Tom Mueller
@gisbatman.bsky.social
Deputy Director for MassGIS Geospatial Technology 4 Life.
This #SOTMUS2026 session demonstrates a #Python program used to identify #urbanheatislands by utilizing #LANDSAT thermal band imagery and #OSM ways exported through #Overpass. The program calculates the land surface temperature exposure for each way. 🦩 🔗 youtu.be/En2dNw2K3SQ?... 🦩
Using LANDSAT and OSM to Map Urban Heat Impact ~ Luke Everhart
This session covers a class project developed over the course of a semester: a Python program that takes both LANDSAT thermal band imagery and OSM ways exported via Overpass and calculates the Land…
youtu.be
I’m excited to share the new GeoLibre Chrome extension. It scans the webpage you are viewing, finds supported geospatial datasets, and lets you choose multiple files to open together in GeoLibre. Try it: - Download: github.com/opengeos/Geo... - Installation guide: geolibre.app/user-guide/c...
GeoLibre now ships 1000+ free and open-source geospatial tools running entirely in your browser, no server, no Python, no install. - Launch GeoLibre Web: web.geolibre.app - GitHub: github.com/opengeos/Geo... - Documentation: geolibre.app - GeoLibre Rust: github.com/opengeos/geo...
Congratulations to the graduating students of the Cherokee Nation who are going to be receiving copies of the Decolonial Atlas this week! Your teachers care about you so much and I hope these maps remind you that you always have a place in the world (but it may require that you make your own map).
Planetary Mapping in the Browser with GeoLibre! Web mapping just left Earth orbit. GeoLibre, the open-source cloud-native GIS platform, now maps nine more worlds beyond Mars and the Moon: - Launch GeoLibre Web: web.geolibre.app - GitHub: github.com/opengeos/Geo... - Documentation: geolibre.app
GIS 🌍 SCIENCE 🧪 Compelling, action-oriented discussions 🎤 Community 👫🏾 The #EsriUC2026 Science Symposium is July 14 in San Diego, and plenty of spots are still open. Free food and drink too! Don’t miss it! Get more detail on how to register and reserved your seat 👉 ow.ly/yxVH50Z3obm #gischat
climate.us is an effort by former staff members at the National Oceanic and Atmospheric Administration to present climate science previously housed at climate.gov, including data, reports, articles, and congressionally mandated national climate assessments.
Climate.us Home
independent, nonprofit, and immune to politics
climate.us
💄 QField alert 💄 QField 4.2 now shows the currently opened project's title right in the side dashboard. Long-requested, finally here. ✨ Pairs perfectly with project cloning in QFieldCloud, one glance tells you which project you're viewing when configs look alike. 🎯
I enjoy looking at this World Cup map before every game I watch. In which countries do the players from each national team play? The map also allows you to look at which club sends which players to the World Cup. Bayern Munich sends more players than anyone else. Source: buff.ly/ChT2caO
The Dept of Interior claims that the algae in the reflecting pool is left over from rarely used pipes No. Painting the pool dark blue means that it absorbs heat much faster than if it were a light color. Warmer = faster algae growth That's why you don't see black swimming pools Science!
Thanks to Wayne Miller at Salve Regina University for doing a little write up on The Map Center for Ocean State Stories. Bless him for slicing through all of my metaphysical bullshit to get to something worth reading. www.oceanstatestories.org/new-map-cent...
New Map Center owner travels circuitous route to Rhode Island – Ocean State Stories
‘Strong environmental ethic’ influenced his decisions PAWTUCKET — A map of Andrew Middleton’s life would begin in New York...
oceanstatestories.org
OT has new datasets, including lidar surveys supporting research in fire-prone SoCal regions and slot canyon studies in Arizona. New USGS 3DEP datasets in NV, OH, and OR, along with Community Dataspace datasets from China, Virginia, and Iceland are also available. opentopography.org/news/april-2...
Join me for the upcoming Geo-Circle: Tue 19 May: ncge.org/event/geocir... GeoCircle: Spatial Thinking IRL – Taking Your Geography Students Outside Join us!
Events for May 2026 – National Council for Geographic Education
ncge.org
The Harmonized Landsat Sentinel-2 (HLS) Workshop is happening today, and I will present on using QGIS plugins for HLS data access, visualization, and analysis. The session will showcase practical workflows for exploring and analyzing HLS datasets directly within QGIS using open-source tools.
Well folks, we are less than two months away from the publication of Boston in 50 Maps, so it's about time for me to start clogging your feeds with promotion. (You can pre-order it now! You've been able to for a while!) First: added a thing about it on my website. andywoodruff.com/posts/2026/b...
Boston in 50 Maps - Andy Woodruff, cartographer
A book of 50+ original maps of Boston.
andywoodruff.com
The Florida Seafloor Mapping Initiative deployed autonomous vessels that gathered sonar data around the clock, operated remotely from shore, with no crew aboard. A GIS pipeline automated handoffs from collection to public dashboards across 8,000 miles of coastline. www.esri.com/about/newsro...
Completed a nice personal project consisting in daily North-America (for now…) OSM Geoparquet v2 files accessible via https and s3. Hosted at Cloudflare. See geoparquet.geomermaids.com directly access the files at parquetry.geomermaids.com Pipeline open-sourced on github, see link on the web page.
Actually wrote a Geoparquet cookbook too because the mix between versions and options is very confusing. www.geomermaids.com/cookbook/rea...
GeoParquet Reading Cookbook · Cloud-Native Geospatial · Geomermaids
Three parts: getting started with DuckDB (init file, HTTP range requests), common (non-spatial) queries with predicate pushdown and EXPLAIN ANALYZE, then spatial queries tricks and tips including the ...
geomermaids.com
Next PreGISP Testing Dates April 20 - 27, 2026 The Exam application period is now open and will close April 10, 2026 www.gisci.org/Want-to-be-a...
PreGISP® (GISP-E) Exam Information
A professional geospatial certification
gisci.org
Gamma Sigma Theta (ГΣθ) – The National Honor Society for Geospatial Technology’s Spring Application is now online. The application is due April 12th. The Honor Society is open to Students, Faculty, Alumni, and Community members. Please visit our StoryMap. arcg.is/0Ga0jG
GAMMA SIGMA THETA (ГΣθ)
National Honor Society for Geospatial Technology
arcg.is
Gladys Mae West obituary: mathematician who pioneered GPS technology www.nature.com/articles/d41...
Gladys Mae West obituary: mathematician who pioneered GPS technology
She made key contributions to US cold-war science despite facing huge barriers as a Black woman.
nature.com
Very honored that the show Chronicle featured MassGIS. Chronicle has been a staple of Boston TV for as long as I can remember. - www.wcvb.com/article/mass...
A look inside MassGIS — The data behind the Commonwealth’s ultimate map
From climate planning to 911 calls, one system helps map Massachusetts.
wcvb.com
Gladys West - A Pioneer and Geospatial Technology Hall of Famer RIP www.npr.org/2026/01/23/n...
Gladys West, mathematician whose work paved the way for GPS, dies at 95
A self-described "little farm girl" in the Jim Crow Era, Gladys West's complex and pioneering work for the U.S. Navy helped to improve billions of lives — and keep us from getting lost.
npr.org
The January 2026 MassGIS GISette is now available. Please check it out at www.mass.gov/info-details... The newsletter includes articles on 1) Summary of the Massachusetts Geospatial Information Coordinating Council (MaGICC) December Meeting 2) The New England 3DHP Program Grant Acceptance
mass.gov
The Flag Sojourn 250 project is the journey of one American flag to every U.S. state, U.S. territory, and U.S. military cemetery overseas to celebrate our country’s 250th birthday. MassGIS was honored to create a StoryMap about this project. nationalflagfoundation.org/nff-sojourn-...
Sojourn 250 StoryMap - National Flag Foundation
nationalflagfoundation.org
The Indigenous Mapping Collective is a global network of Indigenous mappers that provides Indigenous Peoples, Nations, and organizations with the tools and training to map their lands, share their stories, and decolonize place and space. buff.ly/8laGNaZ #GISDay #NativeAmericanHeritageMonth
Indigenous Maps - Indigenous Mapping Collective
We are now known as the Indigenous Mapping Collective. The Indigenous Mapping Workshop is only one part of our global Indigenous Mapping Collective. Our goal has always been to give Indigenous…
buff.ly