Homework for 2.12.08

This homework question is in three parts

i) What is 'longshore drift'

ii) What happens during this process?

iii) What impacts might it have on a coastal landscape and how can these be stopped/lessened?

Homework

"The photo above is typical of the lower course of a river."

Do you agree with the statement?

Give reasons for your choice. (4ES)

E-mail your homework to ichsgeography@googlemail.com by Tuesday 11th November

Middle course of a river

The middle course of a river is where the landscape begins to flatten out and slow down the speed of the river. The river now is wider with many more bends (meanders) and a wide, flat valley on either side known as the flood plain. Meanders are formed by both erosion and deposition, acting on the opposite banks of the river. Click here to see how this happens. Over time the meander is eroded so much that there is only a narrow 'neck' of land between the two main curves and the water floods over this 'neck' creating a new, straight channel. The cut off meander is now called an ox-bow lake.