I am the founder of Spatial Thoughts and author of several open-source learning resources. The technologies I primarily work with are QGIS, Python, GDAL and Google Earth Engine. I am a strong believer in open-source, open-data, and open-learning materials.

You can check out my work through the links below.

• QGIS Tutorials and Tips: Available in 10+ languages and used by 1M+ users every year. Covers all topics suitable from beginner to advanced users with step-by-step instructions. Built using RST/Sphinx/Github Pages. [view source code]
• SpatialThoughts OpenCourseWare: Comprehensive and structured course materials for advanced topics. Shared under open-license suitable for self-learning and non-commercial use. Built using Markdown/R Studio/Github Pages. [view source code]
• Geospatial Python Tutorials: Step-by-step tutorials in form of Jupyter Notebooks that cover advanced topics for GeoPandas, Xarray, Dask and more. Built using Jupyterbook/Github Pages. [view source code]
• Spatial Thoughts YouTube Channel: Full-length courses, tutorials, lectures, guided projects and more content in easy to understand videos.
• Spatial Thoughts Blog: Regularly updated blog covering events and technical topics related to open-source geospatial technologies such as QGIS, Earth Engine, GDAL, Mapshaper and more.

• Google AlphaEarth Satellite Embedding Tutorial Series
• Extracting Time Series using Google Earth Engine
• Calculating Area in Google Earth Engine
• Aggregating Gridded Population Data in Google Earth Engine
• Temporal Gap-Filling with Linear Interpolation in GEE
• Working with QA Bands and Bitmasks in Google Earth Engine
• Exploring the Global 30m Land Cover Change Dataset (1985-2022) GLC_FCS30D
• Extracting Building Heights from Open Buildings 2.5D Temporal Dataset

• Summary Aggregate and Spatial Filters in QGIS
• K-Means Clustering with Equal Sized Clusters in QGIS
• Spatial Homogeneity Testing of Raingauge Data with Advanced QGIS Expressions
• Fuzzy Table Joins in QGIS
• Find Neighbor Polygons using Summary Aggregate Function in QGIS
• Rendering Print Layouts from QGIS Models
• Creating QGIS Models with Optional Inputs and Conditional Processing

• Fast Point-in-Polygon Analysis with GeoPandas and Uber’s H3 Spatial Index
• Approximating Geodesic Buffers with PyQGIS
• Snapping GPS tracks to Roads using PyQGIS and OSRM

• Convert between Orthometric and Ellipsoidal Elevations using GDAL
• Fixing Rasters with Missing Data using QGIS, GDAL and Python
• Reclassifying Rasters using gdal_calc
• Reprojecting and Aggregating Rasters with GDAL
• GDAL and Google Cloud Storage (GCS)