The climate along the River Severn is similar to the rest of Wales and England; very wet and temperate i.e. quite low temperatures in winter and quite high temperature in summer.
The relief of the River Severn is quite varied along its course, with steep ‘V’ shaped valleys in the upper course and more gentle slopes in the middle and lower sections.
The River Severn is very prone to flooding as the source is located in Wales where there is regular heavy rain. This large volume of water combined with melt water and increased velocity due to ‘V’ shaped valleys cause the river to flood often. In 1795 the highest flood to the present day, of the River Severn, was recorded and in 1818 the River Severn flooded 5 times within one year.
LEDC:
The River Amazon Drainage Basin:
The River Amazon is located in South America largely in Brazil but also in Puru Bolivia and Columbia. It is the 2nd largest river in the world to the Nile, measuring 6,400 km from its source, at the Apacheta cliff, to its mouth at the Atlantic Ocean in Brazil.
The total area of the River Amazon drainage basin measures 7,050,000 and gathers waters from 5 degrees north latitude to 20 degrees south . The shape of the drainage basin is relatively oval, covering the northern area of South America. Thousands of tributaries including the , the , the , the , the , the , and the , join the River Amazon, draining 40 % of South America.
The climate along the River Amazon is warm and humid, although there is a large difference between the temperature in the day and that of the night. The difference in temperature is greater than the difference between the seasons. The average temperature in the Amazon basin is 79 degrees and there is on average over 80 inches of rainfall per year.
The relief of the River Amazon basin is very varied along the course; at the source the relief is very steep but the relief becomes gentler toward the middle and lower course of the river.
The river Amazon floods annual between June and October, during the rainy season. Sometimes the width of the river can reach 40km wide.