RivEX

The following pages are to inspire and provide examples of workflows that you might do. Building such workflows within model builder allows you to record your workflow so you can repeat it, as well as opening up opportunities for automation.  You could use the tools individually from the toolbox, in model builder and for advance users, even script them in python.

Data preparation workflows

• Convert a CSV/Excel file into a point dataset ready to be used by RivEX

• Visualise breaks in the river network

• Transfer Strahler and Shreve Order to biological monitoring sites

• Convert a multi-threaded network into a single threaded network

• Adding the distance to source\mouth to network nodes

Creating new data workflows

• Create reaches for a walk-over survey

• Randomly sample a catchment and compute relative position of sampling points

• Generate spaced points along a channel for mapping valley confinement

• Build segments along channel for reach analysis

• Mapping extent of an invasive species

• Linking salmon redds to weirs

Analysis workflows

• Locating nearest upstream site on route to source

• Visualise sedimentation zones upstream of in-stream barriers

• Identifying downstream structures that would affect catadromous species

• Quantify the fragmentation of a river network from in-channel barriers

• Quantify length of woodland shaded channel by accumulating value across network

• Use reaches to extract water quality metrics from data encoded in the river network

• Visualise reach from Sewage Treatment Works to first downstream tributary