Annual flooding is caused by tidal waves called "pororoca", which occur in late winter at high tide, when the Atlantic Ocean overlaps into the river.
The waves occur in late winter at high tide, when the Atlantic Ocean overlaps into the river. Annual flooding is caused by tidal waves called "pororoca".
Annual flooding is caused by tidal waves called "pororoca". The waves occur in late winter at high tide, when the Atlantic Ocean overlaps into the river.
Annual flooding is caused by tidal waves called "pororoca". The waves occur in late winter at high tide, when the Atlantic Ocean overlaps into the river.