Use QGIS to Delineate the Catchment of Discharge Measurement Coordinates

This video demontrates how to delineate a catchment of a known lat/lon coordinate of a discharge device. Two methods to get the point in QGIS are used: (1) import CSV file and (2) digitize lat/lon coordinate using the Lat Lon Tools plugin. The SAGA tools are used for the channel and catchment delineation. Data: reprojected and clipped SRTM DEM, backdrop (c) OpenStreetMap Contributors Software: QGIS LTR SAGA tools Lat Lon Tools plugin: #readme 0:00 Introduction 0:40 Fill sinks 1:23 Add coordinate from CSV file 3:48 Creat point from coordinate using Lat Lon Tools plugin 5:05 Derive channels 5:50 Snap pour point 7:07 Add XY coordinate to attribute table 7:44 Delineate catchment 8:22 Polygonize catchment #QGISHydro #QGIS