2. This measurement was repeated at 3 equidistant places across the river and an average time taken. The velocity was calculated using the equation:…
10. Gradient – Grade measured by the ratio of drop in elevation of a stream…
In location four, the velocity of the water was 30.32 and the water traveled 282cm in 9.3 seconds with a depth of 50cm. In location five, the velocity of the water was 34.92 and the water traveled 285cm in 8.16 seconds with a depth of 39cm. In location six, the velocity of the water was 43.49 and the water traveled 284cm in 6.53 seconds with a depth of 31.5cm. In location seven, the velocity of the water was 25.31 and the water traveled 281cm in 11.10 seconds with a depth of…
When my group went to the first station, we were testing the velocity how long it took a bobber to go down stream. To do this station, we used a piece of bamboo, string, and a bobber. We had to test the depth of the water which was 32 centimeters deep. Then we measured how long the string was and it was 285 centimeters long. After that, our group got into the water and timed how long it took to get the bobber to flow down the creek until it reached the bamboo, my…
The following questions refer to Activity 3: Studying the Effect of Flow Tube Length on Fluid Flow.…
Depth is defined as the distance between the surface of the river to the bottom (the river bed) this distance is measured in a straight vertical line. As you move from the source to the mouth the river depth increases. (which is shown in the Bradshaw model). This is because at the source the depth is small and shallow due to the river just starting, so theres little water in the river giving it less energy to change the depth of the channel by erosion. As you go downstream the volume/amount of water (also known as discharge) also increases because more and more tributaries join the main river. The increase of water makes the energy levels rise when theres moe energy there is more erosion (in the form of abrasion, attrition and hydraulic action). these types of erosion erode away at the river bed creating a deeper channel.…
Throughout the Hydrology segment of CIVL444 there will be 2 different methods used to determine flow rate, these are the Flood Frequency Analysis (FFA) and the Watershed Bounded Network Model (WBNM). The first method relies simply on past history of floods that have occurred in the past, and the second method is a computer program that analysis a flood based on gauge data.…
Purpose : I want to find out the cause of the water level in the pond dropping.…
An investigation of how and why channel characteristics vary across the River Caerfarell, in Brecon Beacons National Park.…
The first limitation encountered was during the river planning; the tape at the baseline was broken and so measurements began at 3m. This meant that 3m had to be taken off the results gathered so that they were accurate. Another major limitation was the presence of large boulders further upstream when the velocity readings were taken. Although there were no rocks in the area of water being worked on, there were large boulders just upstream which almost completely stopped the flow of water. This meant our results appear incorrect as the water was moving very slowly in an area where it should have been moving…
The following questions refer to Activity 3: Studying the Effect of Flow Tube Length on Fluid Flow.…
Physical factors are more important than human factors in affecting river discharge. Discuss this view.…
To determine the relationship between discharge and the square root of height (h) the following equations were used.…
Also you can get a better overview of the general trends in a rivers processes and landforms over its full course. We can be more certain of our conclusions about the pattern along the Holford Combe River and how closely they relate to the Bradshaw Model (fig 1). The length is very important because we were only aloud two days outside of school lessons to complete the data collection. The being short meant we were able to walk the length of the river from source to mouth and not waste time from travelling to different sites. It’s a good site choice from a health and safety perspective (fig 6) as the river is not to wide or deep and being short as well. Also erosional processes haven’t had much time to act against the river channel, to make sure it didn’t make it dangerously deep or wide. The river was very accessible to us from school (only 47 miles, South west of Bristol), so it was very easy to get to and realistic and cost effective for the site…
References: Chilcote, D. S. (2012). Riverscape Analysis Project. Retrieved March 2, 2012, from www.umt.edu: http://www.umt.edu/flbs/research/Whitepapers/The%20Riverscape%20Analysis%20Project%20v5.pdf…