In addition to delineating watersheds (drainage basins) upstream of one or more outlet points using WhiteboxTools' Watershed and UnnestBasins tools as illustrated in this post, WhiteboxTools has three other tools…
In addition to delineating watersheds (drainage basins) upstream of one or more outlet points using WhiteboxTools' Watershed and UnnestBasins tools as illustrated in this post, WhiteboxTools has three other tools…
In this post, we explained how to import points in CSV format to QGIS to create a point shapefile, Similarly we can import points in CSV format with easting/northing or…
Points in CSV (comma separate values) format with Northing/Easting or Longitude/Latitude can be imported to QGIS and then be saved as a point shapefile. A point CSV file can also…
XPSWMM can load an image raster file as background to facilitate the drainage network creation. The image file needs to have a world file associated with so that XPSWMM is…
To perform 2D modeling using XPSWMM, a surface dtm file (*.xptin) needs to be generate first in XPSWMM. Another option to create a 2D surface is Reference a Grid File…
A big size raster file usually can be compressed to reduce its size. A lot of QGIS raster tools/commands have a built-in option to select a method to compress a…
Note: in the new QGIS version 3.2X, the SAGA Upslope Area tool used for watershed delineation in this instruction may not work properly (discussions on Github). An easy way to…
Before adding geometry attributes (length, area, perimeter) to a line or polygon shapefile or X / Y Coordinates to a point shapefiles in QGIS, make sure the shapefiles are in…
A raster file is a matrix of predefined cells (pixels) with certain number of rows and columns. The level of detail represented by a raster depends on the cell (pixel)…
Time of concentration (TOC) is an important hydrology parameter which represents the time required for surface runoff to travel from the most hydraulically remote point (normally divide or ridge) in…