Geography Unit 2 Essay

1676 Words Apr 7th, 2012 7 Pages
In this Geography GCSE controlled assessment project, I will be focusing on rivers and I have chosen a hypothesis to prove that erosion is making an impact on the Loughton Brook Rivers. My hypothesis is, “The river Loughton brook becomes wider and deeper due to erosion as it moves downstream”. I will be investigating if erosion takes place downstream in the river. I will investigate if hydraulic action has an impact. I will study about vertical erosion, lateral erosion, Cross profile and hydraulic action.
The geography field trip we are going to is called Loughton Brook which is located in Epping Forest. Epping Forest is the hugest public forest in London. It is almost 6000 acres and has an area of about 12 miles. Two thirds of Epping
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We collected the results which were from the Loughton brook and we put this data in various graphs to study the pattern from different areas and bits of the river.

Water width

My hypothesis stated that the water width and channel width would increase as river goes downstream. At Site 1the river width was 2.5 meters, whereas at Site 2was 3 meters and site 3 was 4 meters.

Wetted perimeter

the wetted perimeter at the first site was quiet low this is the fact that this was where the river started and was formed so you do not expect to see any water, at site 2 the wetted perimeter doubles roughly and at site 3 just a little bit higher, this is due to the water collecting at the bottom and forming the river Loughton brook which ends into the river Thames

Water depth

the water depth at site 1 was less than a meter high and in site 2 the water depth was less than the water depth in site one, this is possible because of the rainfall not falling on the ground as there was a lot of trees in that area so vertical erosion did not happen as it’s supposed to be because my hypothesis states that the river Loughton brook gets deeper and wider due to vertical and lateral erosion, at sight 3 this is seen because the depth of the water is 0.79 which is deeper than the rest which proves my hypothesis is right and there are certain factors

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