Analysisclast shape - enter the number of each shape found at each sitevery angular 3 4 0 0 0 0 0 0angular 7 9 2 1 2 1 0 0sub angular 4 2 8 4 7 5 1 1sub rounded 1 0 5 7 6 5 8 7rounded 0 0 0 2 0 4 3 6very rounded 0 0 0 1 0 0 3 1clast size (cm) 1 9 11. This meant that the impeller turned faster then normal and therefore alteredour results. This meantthat, especially in the upper course sites that the readings had to be defaulted at 100seconds. Page 36 of 59at site 5 the cross sectional area was 0. This is due to the fact that there will be less frictionbetween the water and the banks and bed of the river.
Instead of measuring the clasts size, we could have measured its volume inorder to make it more accurate Buy now Geography Rivers Coursework Introduction
Surface runoff is very quick and is the movement of water in any form fromthe atmosphere to the ground. The crosssectional area increased because wewere in the lower course of the river. Bar graphsare used to track changes over each site. There is also less energy waste onfrictionas there is less substrate is on the bed. Assessmentrisk how it was minimizedthere could have been rat faeces in theriver which could have caused diseases ifit got into the skin.
First you have to work out the degrees of freedom, which is the number ofpairs in your sample minus 2. Page 11 of 59hypothesesaim an investigation into the changing physical characteristics form source to mouthof the river holford Geography Rivers Coursework Introduction Buy now
This is because at a confluence the river has more energy and power to erode,resulting in a larger, deeper channel. Downstream reading (m) upstream reading (m) 10mchannel size (m2) average depth (cm) 100 x width (m)channel shape (form ratio) average depth (cm) 100 x width (m)bank full csa (m2) bank full width (m) x bank full average depth (cm) 100spearmans rank correlationspearmans rank technique is a statistical test which will be used for each hypothesisto see whether there is a correlation between two variables, and to test the actualstrength and the reliability of the relationship. Page 56 of 59then at site 8 where my depth was 0. This meant that groundwater flow would occur here, where the watermoved underground through these pores and joints Buy Geography Rivers Coursework Introduction at a discount
Map of somersetthisis a national mapofwhere somersetisinrelationto the rest of england. Page 35 of 59at site 3 the cross sectional area was 0. Page 23 of 59site 5- at this site the rivers width,depth and velocity increased slightly. Quartzite was once sandstone and this conversion took place after heatand pressure. Now a statistical test calledspearmans rank correlation must be undertaken to see the strength of thiscorrelation.
I feel that we could have just worked out the volume of theclasts. Page 4 of 59introductionin my introduction i will be talking about where in the uk the river holford issituated and the describing the relief around it. These all led me into producing a good piece of coursework Buy Online Geography Rivers Coursework Introduction
Nearly all the widths, except sites 1 and 4, are near to the line of best fit andthis shows us that the correlationis quite good. The river thendecreased from site 5 to site 8. The depth was at its highest near themiddle of the river at plot 5 which was 0. This means that the width will be larger here seeing as more erosiontakes place in this part of the river. Depth vs distance downstreamdepthsite number average depth (m)1 0.
The limitations of the data collectionwill be explored and the changes thati would make if i were going to undertake this river study again. It is in awooded area with steep sides andthere is a very obvious drop ingradient as you continue from thesource to site 1 Buy Geography Rivers Coursework Introduction Online at a discount
This meant that the impeller turned faster then normal and therefore alteredour results. At each site, wemeasured 5 velocity readings by dividing the channels width by 5. Readings takensite 5 depthdepth page 31 of 59the depth at site 6 generally decreased from 0. I used a number of different sourcessuch as, the internet and maps in order to support the primary data collected. A perfect positivecorrelationis 1, while a perfect negative correlationis -1.
Distance downstreamwidthsite number width of river (m)1 0. This tells us that my results were a product of chance and that imust therefore reject my hypothesis. Thistechnique tells us whether the correlation is really mathematically significant or if itcould have been the result of chance alone Geography Rivers Coursework Introduction For Sale
It was alsoused to split the river up into 5 parts when wewere finding out the gradient. Some of the modelspredictions did not work for our particular river that we were studying because therewere a lot of changes throughout its course that affected our readings, such as thegeology and confluences along its course. This is the rapiddown cutting of the bed. This meant that interception by this canopy layercould stop rain water from reaching the ground and therefore decreasing surfacerunoff. This meant that the impeller could not turndue to the fact that it was coming into contact with the river bed.
Page 56 of 59then at site 8 where my depth was 0. Page 55 of 59in this section i will be seeing if my hypotheses were correct overall using data frommy graphs For Sale Geography Rivers Coursework Introduction
The limitations of the data collectionwill be explored and the changes thati would make if i were going to undertake this river study again. A result of this was that humic acid was formed anddissolved the river bed and thus created deeper channels. As you can see on the land use map there is ahigh amount deciduous forest near the source meaning that the trees will intercept rainwater and prevent it from reaching the river. This meant that we could not sample in this area andtherefore we could not tell if the trends of the previous sites would continue. In the upper course of the river, we expected the river to have morepotential energy which meant that the river was deeper rather than wider Sale Geography Rivers Coursework Introduction