http://hirzels.com/martin/papers/spe16-river.pdf
Tribute Tributary Brook Flow Rapid Affluent Alluvial Aquaduct Niagara Iguaza Aquifer Flood Flashflood Headwater Tailwater Lotic Hydro Meander Outfall Spillway Watershed Weir
http://hirzels.com/martin/papers/spe16-river.pdf