Download SRTM DEM from OpenTopography & Watershed Delineation in ArcGIS | Step-by-Step Tutorial

Описание: In this step-by-step GIS tutorial, learn how to download high-resolution SRTM DEM data from OpenTopography and perform watershed delineation in ArcGIS. This complete guide is perfect for beginners, UGC NET Geography students, researchers, and GIS professionals.

We start by downloading free SRTM DEM data from OpenTopography, followed by preprocessing and hydrological analysis in ArcGIS. You will learn how to generate flow direction, flow accumulation, stream networks, and watershed boundaries using spatial analyst tools.

This tutorial is highly useful for:
• Hydrology and watershed analysis
• Flood risk mapping
• River basin studies
• Environmental and geomorphological research
• GIS practical exams and dissertations

Whether you’re preparing for UGC NET Geography, working on a thesis, or learning ArcGIS hydrology tools, this video will help you understand the complete workflow in a simple and practical way.

📌 Software Used: ArcGIS
📌 Data Source: OpenTopography (SRTM DEM)
📌 Level: Beginner to Intermediate GIS Users

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📚 Topics Covered:
✔ Download SRTM DEM from OpenTopography
✔ Import DEM into ArcGIS
✔ Fill Sink Tool
✔ Flow Direction & Flow Accumulation
✔ Stream Network Extraction
✔ Watershed Delineation

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