Getting Started with Watershed Delineation in QGIS using DEM Data | 2025

Welcome, in this video tutorial you will learn how to delineate watershed / catchment area in QGIS using DEM data. You will also learn how to generate stream or river network from DEM data. I had prepared the watershed using SRTM DEM downloaded from the USGS Website. If you want to learn how to get DEM data please follow this videos link:    • How to Download 30m SRTM DEM Data from Ear...      • How to Download DEM data using QGIS softwa...   UTM Grid Zones of the World - DMAP https://www.dmap.co.uk/utmworld.htm Join this channel to get access to perks:    / @gismadras   00:00 Introduction 00:55 Projecting DEM 03:36 Getting to your UTM Zone (Projection) 06:55 Fill 08:58 Strahler Order / Stream Order 09:51 Stream Order Threshold 12:13 Streams to shapefile 13:58 Defining outlet 20:04 Watershed delineation / Upslope area 21:09 watershed to shapefile 22:12 clipping stream #QGIS #watersheddelineation #catchmentarea #streamnetwork #hydrologicalmodeling #DEM #learnQGIS