Land Surface Temperature (LST) Calculation in QGIS using Landsat 8/9 Introduction When calculating Land Surface Temperature QGIS Landsat datasets, remember that LST is the temperature of the Earth’s surface as measured by a thermal remote-sensing sensor. Unlike air temperature measured by a weather station, LST describes the temperature of the land surface itself—for example, a … Read more
How to Build & Edit Geodatabase Topology Rules in ArcGIS Pro 1. Introduction: Why Geodatabase Topology Matters When mastering Geodatabase Topology Rules ArcGIS Pro workflows, Imagine digitizing administrative boundaries for a university GIS assignment. You create several adjacent polygons representing wards. One polygon slightly overlaps its neighbour, while another leaves a narrow gap between … Read more
Understanding Coordinate Reference Systems (CRS): Datum Transformations & EPSG Codes Explained 1. Introduction: Why Coordinate Reference Systems Matter in GIS When exploring Coordinate Reference Systems Datum Transformations EPSG concepts, Imagine you are creating a GIS map of a river catchment. You import a river network, a digital elevation model (DEM), administrative boundaries, and satellite … Read more
Georeferencing Scanned Paper Maps & Imagery: 5 Steps to Match Real-World Coordinates 1. Introduction: What Is Georeferencing? When mastering Georeferencing Scanned Maps QGIS ArcGIS Pro workflows, Imagine you find a scanned paper map showing roads, settlements, rivers, and administrative boundaries from 1960. The map is clear, but when you load the image into … Read more
Geographically Weighted Regression (GWR) vs. Multiscale GWR (MGWR): A Practical GIS Guide 1. Introduction: Why Spatial Relationships Change Across Geography When exploring spatial modeling techniques like GWR vs MGWR GIS, Imagine you are studying housing prices across a city. You want to understand how distance to the city centre, household income, and access to … Read more
Catchment Area Analysis Using Isochrones (Travel Time Maps) in QGIS 1. Introduction: Why Use Isochrones Instead of Buffers? When conducting Isochrones Travel Time Maps QGIS catchment area analysis In urban transportation planning, knowing how far a person can travel is just as important as knowing how close a facility appears on a map. A school … Read more
Anselin Local Moran’s I (LISA) in GIS: How to Identify Spatial Outliers & Clusters 1. Introduction: What Is Local Moran’s I (LISA)? When using Anselin Local Morans I LISA GIS, Imagine you are mapping household income across 100 urban neighborhoods. Most neighborhood’s have similar income levels to their neighbors, but a few stand out. … Read more
Random Forest Classification for Land Cover Mapping Using Python & GeoPandas 1. Introduction: Moving from Desktop GIS to Machine Learning When exploring Random Forest Classification Python GIS land cover mapping is a fundamental application of remote sensing. It involves identifying surface categories such as forests, cropland, built-up areas, water bodies, and bare soil from … Read more
5 Layout Design Rules for Professional GIS Maps (ArcGIS Pro & QGIS) Introduction: Why Professional Map Design Matters When applying Layout Design Rules GIS Maps, remember that any GIS map can contain accurate data and sophisticated spatial analysis yet still communicate poorly if its layout is cluttered, its labels overlap, or its colours confuse … Read more
Understanding Coordinate Reference Systems (CRS): Datum Transformations & EPSG Codes Explained 1. Introduction: Why Coordinate Reference Systems Matter in GIS Imagine you are creating a GIS map of a river catchment. You import a river network, a digital elevation model (DEM), administrative boundaries, and satellite imagery. Each dataset appears in a different location, and the … Read more