Ridges and Valleys extraction from DEM using Curvature Analysis in ArcMap

Learn how to extract ridge and valley features from DEM in ArcMap 10.8 step-by-step. In this GIS terrain analysis tutorial, we use Filled DEM, Profile Curvature, Plan Curvature, Flow Accumulation, and Raster Calculator to identify terrain ridges and valley networks. This ArcMap DEM analysis workflow helps visualize convex and concave terrain structures and improves terrain interpretation for hydrology, watershed analysis, geomorphology, and landform studies. We also overlay extracted ridge and valley features on hill shade for better 3D terrain visualization and professional GIS mapping. ⏱️ Chapters: 0:00 Introduction to Ridge & Valley Extraction 0:25 DEM Preparation 0:50 Generate Hill shade 1:27 Flow Accumulation 2:19 Create Curvature 3:13 Extract Ridges using Raster Calculator 3:55 Extract Valleys using the raster calculator. 4:40 Apply Symbology to Ridges & Valleys 📌 What You Will Learn: • ridge extraction from DEM • valley extraction from DEM • terrain analysis in ArcMap 10.8 • profile curvature and plan curvature analysis • flow accumulation terrain analysis • DEM terrain interpretation GIS 🧠 Applications: • hydrology analysis • watershed studies • geomorphology GIS • terrain structure mapping • drainage analysis • terrain interpretation 🗺️ Tools Used: • ArcMap 10.8 • Spatial Analyst Extension • Fill Tool • Curvature Tool • Flow Direction • Flow Accumulation • Raster Calculator • Hillshade Tool 🔍 Keywords: ridge extraction arcmap, valley extraction gis, terrain analysis arcgis, dem terrain analysis, ridge and valley extraction from dem, profile curvature arcmap, plan curvature gis, flow accumulation arcmap, hillshade terrain visualization, geomorphology gis tutorial, digital elevation model arcmap, terrain interpretation gis, arcmap hydrology tutorial, raster calculator arcgis, terrain structure analysis