Create reach polylines for sites along your river network

Screen shot showing what downstream reaches look like.

A screen shot showing what an upstream nearby network looks like

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Create downstream nearby network

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Create upstream nearby network

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Create downstream reach

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Create upstream reach

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Create site centred reach

Using snapped sites as a starting point, RivEX can generate reach polylines in an upstream, downstream or both directions. Such polylines can be used to map zones of sedimentation upstream of a weir, impact zones downstream of a barrier, limits of movement for a species. Reaches track along a single channel.

If you need to understand an impact for all possible routes then you can use the nearby network tools.

Available tools are:

5Km upstream nearby
network extracted

Downstream 1Km
reach extracted

More advice about reach tools is given in the manual.