World Rivers

Rate of water flow A River gets its water from –Precipitation –Groundwater –Melting waters from snow and glaciers Depending on the source of water the distinct rate of water flow develops in different rivers.

Equatorial zone Rivers get their water mainly from precipitation Rate of water flow is high throughout the year The Congo River

Subequatorial zone High water occurs during summer raining season Low water occurs during dry winter The Mekong River

Tropical zone Precipitation level is very low Rivers form only during the short raining period A stream bed in Southern Israel

Subtropical Zone High water occurs during winter raining season Low water occurs during dry winter The Tagus

The Yangtze

Temperate zone I High water occurs mainly during spring when the snow melts. High water can occur also during autumn rainfalls. The Lena River

Temperate zone II Rivers which get their water mainly from groundwater maintain relatively high water throughout the year. Rivers which get their start in high mountains collect their water mainly from snow and ice melting waters. Because of that high water occurs during summer.

The Rhine