Aim, Hypothesis, Theory, Location

Question 1

What is the aim?

Answer 1

This study aims to examine the extent to which the load in the Langden Brook changes in accordance with theory

Question 2

What is the hypothesis?

Answer 2

The size of the load decreases with increasing distance from the source

Question 3

What is the theory behind the fieldwork?

Answer 3

The Bradshaw model suggests as you move from source to mouth the load size with decrease

Question 4

Comment on weathering (in relation to the theory)

Answer 4

Weathering contributes large clast of load to the river via frost shattering from the steep V-shaped valley sides

• The valley sides are very steep at this point causing rapid downslope movement into the river
• In the middle/lower course the valley sides are less steep reducing this

Question 5

Comment on the erosional processes in the upper course (in relation to the theory)

Answer 5

Dominant erosional processes in the upper course include hydraulic action and attrition due to turbulent flow are there is limited water in the channel but the river has high gravitational potential energy because it is high above sea level
-This adds large clasts of load to the river in the upper course which will be eroded as the material is transported downstream

Question 6

Comment on the transportation processes in the upper course (in relation to the theory)

Answer 6

Transportation processes in the upper course depend on the volume of water at a given time (discharge) as
-during times of peak flow large material can be moved via traction and saltation (low competence and capacity0 but smaller material can be moved during lower levels of flood
Material can be more easily moved as you travel downstream when discharge increases (increases in competence and capacity)

Question 7

What is the general location of the Langden Brook (in england, related rivers, where it goes)

Answer 7

The forest of Bowland, Lanchashire in the North West of England
-a tributary of the River Hodder which leads to the River Ribble and flows into the Irish Sea at Preston

Question 8

Describe the specific location of Langden Brook and where we studdied

Answer 8

The Langden Brook is part of the Pennies mountain range and is therefore quite high above 300m
The section of the river we studfies was running through the Forest of Bowland near Dunsop Bridge, approx. 14km NW of Clitheroe and 19km SE of Lancaster.

Question 9

How long is the Langden brook?

Answer 9

From source to confluence, it measures about 8.5km in length