Bank slope width as a multiple of the channel half-width (the carving modifier's falloff).
Channel depth as a fraction of its width.
Height (metres) added per cell across filled flats so every cell drains (Priority-Flood+ε).
0 … 1: how full channels are (the water surface sits this far from the bed to the bank top).
Widest river, metres.
Shallowest channel, metres.
Smallest lake kept, m².
Shallowest lake kept (its deepest point), metres.
Narrowest river, metres.
Upstream area (m²) at which a channel becomes a river.
Cells at or below this height are sea: they absorb flow and are never filled. -Infinity = only the map edges drain.
Smoothing passes over river polylines (removes the D8 zig-zag).
Width grows as (area / 1 km²)^widthExponent; 0.5 is typical of real rivers.
River width (metres) where it drains 1 km².
Settings of analyzeHydrology.