The Free-flowing River Toolbox for ArcGIS Desktop is a tool to conduct a Free-flowing river analysis (FFR) - replicating the methodology described in Grill et al. (2019): Mapping the world's free-flowing rivers. The study can be downloaded at this link:
The original source code that describes the methodology, as well as global data is available at this link. However, the user is encouraged to use the newer, more flexible FFR Toolbox that can be launched from a Geographic Information System.
Tutorial
A tutorial, including video guidance, is provided to guide the user through the installation and the use of the tool at this page.
Download the tool
There are two different versions:
The original version covers the entire Mekong River basin. It can be downloaded from this link: