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# My aim is to investigate, using the Curley Burn River, a 4th order tributary of the River Roe drainage basin, the relationship between the changes in the river and the distance down stream. I will formulate 3 hypotheses around the river model

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Introduction

Downstream changes in hydraulic Geometry and bed load in the River Roe drainage basin Introduction: My aim is to investigate, using the Curley Burn River, a 4th order tributary of the River Roe drainage basin, the relationship between the changes in the river and the distance down stream. I will formulate 3 hypotheses around the river model. Planning: Hypothesis formulated: Hyp 1 -velocity will increase with distance downstream Hyp 2 -discharge will increase with distance downstream Hyp 3 - Bed load size and shape will decrease with distance down stream We worked on the River Roe and Curly Burn with the help and use of Magilligan field centre because: The centre had trained people in field work; they could provide all the proper equipment and insurance. Access permission, risk assessment and pilot study were already done by the centre Safety: Precautions taken before entering the field: * Appropriate water proof clothing had to be worn e.g. ...read more.

Middle

To collect our data at the different site we spilt into groups of 3. This meant that there was 1 person recording the data and 2 in the field collecting it. Data collection: It was very important that we used the equipment safely: Task A - measuring the velocity of the river Equipment used at this site: Stopwatch, Tape measure, Data recording sheets, floats We used two ranging poles that were placed 10 meters apart. The float was let go in the river and timed between the two ranging poles. The time was recorded and the task was carried out three times to get an average. Task B - Measurement of Bed load Equipment used at this site: Data recording sheet and a copy Powers roundness index. One member of the group randomly chose 12 stones with a metre stick. ...read more.

Conclusion

We calculated the average depth of the river at each site and we could also work out the discharge using a formula, =width x depth x velocity. Task D- measuring the gradient of the river Equipment used: ranging poles, theodolite, and staff One member of the group placed the staff on the surface of the water. The other member of the group stood on up the river (approx 10 metres) with the theodolite which is an automatic leveller. The group member looked trough the theodolite and took the readings of the staff and they were recorded on the data sheet. After the data was used with a formula to work out the gradient. Secondary Sources We used an ordnance survey map of the River Roe drainage basin to determine our sites and distance downstream. We used Waugh's Integrated Geography Approach to help with background theory. All the results were placed on a table. ?? ?? ?? ?? Martin Burke Geography field work module 3 ...read more.

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