Watershed Delimitation and Topographic Mapping in QGIS

Understanding how water flows across a landscape is essential for environmental planning, civil engineering, and water resource management. This course provides a clear, step-by-step guide to analyzing terrain and mapping watersheds using open-source GIS software. You will start with the fundamental principles of hydrology and cartography before moving into hands-on spatial analysis. By reading this course, you will gain the skills to transform raw elevation data into professional topographic maps and precise watershed boundaries. You will learn how to process digital elevation models, extract stream networks, and generate clean contour lines that represent real-world terrain. What you'll learn: - Understand the core concepts of hydrology, watershed components, and drainage networks - Configure your QGIS workspace and manage coordinate reference systems for spatial accuracy - Process digital elevation models to fill sinks and analyze terrain flow directions - Delimit watershed boundaries and extract stream channels using automated hydrological tools - Generate topographic contour lines and style planialtimetric maps for clear visualization - Apply modern data validation techniques to ensure your spatial analysis is accurate and clean This course begins with essential theoretical definitions of watersheds and cartographic principles, ensuring you have a solid foundation. You will then progress through structured written tutorials that walk you through importing data, running hydrological algorithms, and designing final map layouts. This course is designed for beginners, environmental students, and professionals looking to learn spatial analysis in QGIS without any prior GIS experience. Start building your spatial analysis skills today.