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.
Articles
Posts
Notes, case studies, and technical writing on GIS, spatial analysis, and open source geospatial tools.
18 articles
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 impact.
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 municipal averages.
Spatial Patterns of Infant Poverty in Mexico: A Case Study of Tijuana
A spatial look at child vulnerability in Tijuana using census data, clustering, and a few simple indicators.
Using Census and Electoral Data for More Precise Campaign Targeting
A practical look at how census and electoral data can be combined to identify high-priority neighborhoods for campaign work.
Using GIS to Evaluate Bank Branch Coverage in Tijuana
A Tijuana case showing how census data and drive-time analysis can be used to look at branch coverage, overlap, and expansion gaps.
PostgreSQL, GeoServer and QGIS in a Nature Data Workflow for Tampere
Archive note for my Gispo article on a Tampere workflow built with PostgreSQL, GeoServer, and QGIS.
United Nations Calls for Open Source
Archive note for my Gispo article on the UN's support for open source and why it matters.
On the Rising Importance of SQL for Geospatial Data Experts
Archive note for my Gispo article on why SQL has become a core skill in geospatial work.
Driving Insights from Point Cloud Data with WhiteboxTools and QGIS
Archive note for my Gispo article on using WhiteboxTools with QGIS for point cloud and terrain work.
Empowering European Commission with GIS Capabilities Through QGIS Training
Archive note for my Gispo article on QGIS training delivered for European institutions.
Data for urban mobility planning
Clean growth, climate action, and basic urban functionality all push cities to think about mobility in a more data-driven way.
Learn Spatial SQL and Master GeoPackage with QGIS 3
Archive note for my Gispo article on learning spatial SQL through GeoPackage and QGIS.
How to Handle Point Clouds in QGIS 3.18
Archive note for my Gispo article on what QGIS 3.18 changed for point cloud work.
Automating GIS Processes with Graphical Modeler in QGIS
Archive note for my Gispo article on automating repetitive QGIS work with the Graphical Modeler.
Public investment in León (Mx.)
When it comes to budgets, there’s always interest for analyzing and visualizing the data.
Accessibility to hospitals
Matching the populational demand and service offering in the health sector is an analytical challenge that every society and health provider face.
School accessibility in Finland
School accessibility is a theme of great importance and requires advanced geospatial analysis for solving it as a complex societal challenge.