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.
Location-based workflows, software, and operations
Spatial software built around real work.
I work where location-based workflows, software, and day-to-day operations meet. This site brings together my articles, talks, and working notes on GIS, spatial analysis, open-source technology, and building systems people can rely on.
Articles
Writing from the work
A selection of articles on the problems, tools, and practical decisions involved in spatial work.
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 …
Speaking
Recent talks
Recent talks drawn from practical work with GIS, spatial databases, and open-source geospatial systems.
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
The workflow comes first.
I am interested in how spatial software supports the work people actually need to do. GIS, spatial analysis, and open-source tools matter when they make that work clearer and more dependable. The about page has more background.