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Case studies & field notes

Case studies from client projects and practical notes on drone photogrammetry, LiDAR and GIS automation.

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A 12-Foot Map for a Documentary: Why Merged USGS GeoPDFs Went Blurry and How I Rebuilt It

12 Oct 2026

The story of an 18 in Γ— 12 ft, 210-mile topographic map for a film about an Alaska expedition: why stitched USGS GeoPDFs fell apart at print size, and how rebuilding from The National Map vector data kept every label sharp.

#gis #cartography #usgs #qgis
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Case Study: Replacing Manual ArcGIS Workflows with Python

11 Oct 2026

Rebuilt complex ArcGIS vector workflows as reproducible Python pipelines for a US planning analysis, and found and fixed method errors in two mobility analyses.

#case-study #python #gis #automation #usa
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Case Study: Drive Times from Every Austrian Postal Code to the Nearest BILLA Plus

11 Oct 2026

A repeatable Python and OpenStreetMap workflow that calculates drive distance and time from every Austrian postal code area to its nearest BILLA Plus store, delivered as an Excel dataset.

#case-study #gis #python #network-analysis #austria
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Case Study: Multi-Year Utility Cadastre Vectorization in Germany

11 Oct 2026

Georeferencing and vectorizing water, power, gas, telecom and district-heating networks from legacy scans and CAD into a client schema, with automated topology QA.

#case-study #gis #cadastre #utility-mapping #germany
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Case Study: Thermal + RGB Drone Mapping for Five Projects in California

11 Oct 2026

Five thermal and RGB drone mapping projects of 1,000–2,000 images each, delivered as aligned thermal and RGB orthomosaics in client-ready GIS packages.

#case-study #drone #thermal #pix4d #usa
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Case Study: Drone-Based Runway Crack Detection at Dhaka Airport

11 Oct 2026

Drone imagery, georeferenced orthophotos and an ArcGIS deep-learning model to map runway pavement cracks at Hazrat Shahjalal International Airport for maintenance prioritization.

#case-study #drone #arcgis-pro #deep-learning #pavement
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Case Study: 400,000+ Drone Images for the 22 Coastal Towns Program, Bangladesh

11 Oct 2026

RTK drone photogrammetry for 15 municipalities in an ADB-funded water supply and sanitation program: 400,000+ images processed into survey-grade orthomosaics, DSMs and DTMs.

#case-study #drone #photogrammetry #pix4d #bangladesh
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Runway Crack Detection Using Drones & ArcGIS Pro

27 Jul 2026

Discover how drone photogrammetry, orthophotos, and ArcGIS Pro deep learning automate runway pavement crack detection for faster, safer, and data-driven airport maintenance.

#gis #drone #photogrammetry #arcgis-pro #deep-learning