Contents preface (VII) introduction 1—37

12.2.10. Tidal Rivers
All rivers ultimately meet the sea. In the reach of a river just upstream of the sea, there would occur periodic changes in water levels due to tides. This reach of the river is called tidal river and receives sea water during flood tides and raises its level. During ebb tides, the river water level is lowered. The length of the river reach affected by tidal effects depends on the river slope, the tidal range, discharge, river configuration etc.
12.2.11. Delta Rivers
A river, before becoming a tidal river, may split into number of branches due to very flat bed slopes resulting in shoal formation and braiding of the channel. This part of the river reach is called delta river. The delta river indicates a stage, rather than a type of river.