Mapping Flood Extent in Mexico With Sentinel-1
A simple Sentinel-1 and Google Earth Engine workflow for estimating flood extent in parts of Mexico during the October 2025 flooding.
GIS, spatial analysis, and open source geospatial work
I write about GIS, spatial analysis, and the practical questions around geospatial work.
Most of my work sits somewhere between technical implementation, analysis, and the decisions around them. This site is where I keep articles, talks, and a few working notes.
Articles
Featured writing
A few pieces that give a good sense of the kind of questions I like to work on.
The Domino Effect of School Closures: A Geospatial Look at Service Network Decisions
A simple school network simulation showing what happens when two schools are removed from the map, and why small savings can produce a very uneven …
Mapping Unemployment: Spatial Patterns and Clusters in Jakobstad with Finland's Fine-Grained Statistical Data
A look at unemployment patterns in Jakobstad using Finland's 250-meter grid data, with a focus on what becomes visible when you stop looking only at …
Speaking
Recent talks
A couple of recent talks on enterprise GIS, open source geospatial tooling, and implementation work.
Cloud-Native Geospatial Technologies and Enterprise Solutions
Talk at FOSS4G North America 2023 on cloud-native geospatial tooling and operational workflows.
PostGIS and QGIS Enterprise Solutions for Modern Geospatial Workflows
Talk and workshop at FOSS4G 2023 on PostGIS and QGIS in larger operational environments.
About
Writing, talks, and notes from practical GIS work.
I work in open source GIS and geospatial analysis, and I use this site to collect things I have written, presented, or explored in more detail. If you want background, the about page is the best place to start.