Digital Elevation Models and GIS Applications

Understanding the Earth's surface is critical for modern environmental planning, infrastructure development, and natural resource management. This text-based course introduces you to the core principles of Digital Elevation Models (DEMs) and their practical applications in geographic information systems (GIS). You will start with the absolute fundamentals, exploring how terrain data is captured, structured, and represented digitally before moving on to hands-on analysis techniques. By the end of this course, you will be able to confidently manipulate spatial elevation datasets, perform hydrological modeling, and interpret terrain characteristics to make data-driven decisions. What you'll learn: Understand the foundational concepts of DEMs, DSMs, and DTMs; Analyze elevation data sources including LiDAR, satellite radar, and photogrammetry; Generate slope, aspect, hillshade, and contour maps from raw elevation files; Perform watershed delineation and hydrological flow modeling; Apply modern spatial analysis workflows to evaluate natural hazards and terrain suitability. This course begins with essential terminology and data structures before guiding you through step-by-step written tutorials on terrain analysis and real-world GIS applications. This course is designed specifically for beginners, students, and professionals in geography, civil engineering, or environmental science who want to build a solid foundation in spatial terrain analysis without any prior GIS experience. Start reading today to unlock the power of digital terrain modeling.