Exploring the Hydrological Tools in QGIS

Purpose

The purpose of this Wiki tutorial is to demonstrate and explore various hydrology tools used for hydrological analyses in QGIS. The objective of this tutorial is to provide instructions on how to use digital elevation models (DEM) for extracting channel networks, delineating watersheds and defining a catchment area. Additionally, this tutorial will allow for comparison between open source softwares of QGIS, ILWIS and SAGA GIS, tutorials created for hydrological analyses in 2013 and 2014.

Introduction

Materials and methods

Data and available platforms

Getting started

Projecting your DEM

The hydrology toolboxes

The hydrology SAGA Toolbox

Filling sinks in a DEM

Flow directions and watershed basins

Defining the catchment area

Channel network of a DEM

Conclusion

Literature Cited

Exploring the Hydrological Tools in QGIS

Contents