Delineate catchment area using QGIS

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This video tutorial guides viewers on how to delineate a catchment area using QGIS, a free and open-source geographic information system software. The tutorial covers the process of identifying the catchment area's outlet point, creating a flow direction raster, and generating a channel network and catchment area polygon using the SAGA GIS tool. The tutorial is easy to follow and suitable for users of all levels, making it an essential resource for anyone looking to identify and analyze catchment areas in their GIS projects.
  1. arjun.b
  2. catchmentarea
  3. delineate catchment area
  4. watershed
  5. GIS
  6. calculate catchmentarea
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Комментарии
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Hello.. Thank you for the video.Iit is so useful.I have a questions regarding of delineating the catchtment. Inside the catchment i want to derive several subcatchments. Is it possible? For example in arcmap we can insert several pourpoints and after that we can delineate the subcatchment for those pourpoints. I want to do it in qgis but i cant figure out how to do. I tried to add a shape file With multipoints and adding the pourpoints in the strahler order and use the upslope area but it requires the coordinates for only one point. Also tried to run as a batch process, where i added the coordinates, but is doesnt worked. Please can you help me how to operate? Thank you!

xhuljosema
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Thanks for this important tutorial but on installing OSM do you need internet to zoom in? Anytime zoom in the OSM disappears and the DEM will not overlay on the OSM.
What is the reason?

adamuel-oji
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The video was good. However, what was the name o the actual River?

winnieokoth
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Thanks so much. The trouble l have is Strahler Order is that SAGA 7.2.8 is not supported for windows. What is the solution?
Thanks

adamuel-oji