How to Delineate River Basin & River in QGIS | Hydrological Analysis
About this Video
Welcome to our KZread tutorial on conducting a hydrological analysis in QGIS! In this comprehensive guide, we'll show you step-by-step how to precisely delineate a river basin and accurately trace the path of a river using the powerful capabilities of QGIS - a free and open-source Geographic Information System software.
🗺️ Overview:
Understanding the drainage patterns and river basins is crucial for various fields such as environmental studies, water resource management, and flood risk assessment. With QGIS, you can efficiently process spatial data and perform advanced hydrological analysis, making it an indispensable tool for GIS enthusiasts, researchers, and professionals.
📜 What you'll learn:
1. Importing spatial data: We'll start by introducing you to the process of importing the necessary GIS data, including DEM (Digital Elevation Model) and river network data, into QGIS.
2. Preprocessing DEM data: Learn how to preprocess the DEM data to fill sinks, remove pits, and ensure a smoother analysis process.
3. Creating flow direction and accumulation: Discover the essential steps to generate flow direction and accumulation grids, which are vital components of delineating a river basin.
4. River network extraction: We'll guide you through extracting the river network from the flow accumulation grid, allowing us to identify the main rivers and tributaries.
5. Delineating the river basin: Utilizing the flow direction and river network data, you'll understand how to delineate the boundary of the river basin accurately.
6. Tracing the river course: Learn how to trace the path of the river accurately, visualizing its course based on the DEM and flow direction data.
7. Hydrological analysis: Finally, we'll perform various hydrological analyses, including calculating the catchment area, stream order, and stream network statistics.
Don't miss this opportunity to enhance your GIS skills and gain valuable insights into hydrological analysis with QGIS. Hit the like button if you find this tutorial helpful, and don't forget to subscribe to our channel for more exciting GIS tutorials and data analysis guides!
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Playlists ⬇️
1️⃣ Various Space Agencies & Missions: bit.ly/44UBJQI
2️⃣ Data Download Processes for GIS Work: bit.ly/44WYP9D
3️⃣ QGIS Basics Tutorials: bit.ly/3Oljo95
4️⃣ ArcMap Basics Tutorials: bit.ly/3DoAopy
5️⃣ Terrain Analysis: bit.ly/44UBJ38
6️⃣ Hydrological Analysis: bit.ly/472LGgY
7️⃣ Image Classification: bit.ly/3sb1iyR
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