... then be broken off. For these processes to occur it helps to have a steep gradient, as this will lead to ice flow. A harsh climate is also needed, which is cold, to encourage ice formation and accumulation. These conditions ...

... how the information varies. If the river does vary often then we are probably looking at a river in more of a rural area. This is because in an urban area the banks of the river are sometimes been reinforced ...

... Nant-y-Brwyn was the site highest above sea level and therefore the nearest to the source, which we studied. This site shows examples of interlocking spurs, a V-shaped valley and impermeable slates and quartz. The site is a tributary to the ...

... hot and rainy from spring through summer, warm and sunny in fall. The terrain of Hong Kong is hilly to mountainous with steep slopes there are also lowlands in north. Hong Kong's population has been rising significantly in the past ...

... factors that contribute to flooding. I will give these factors a score on a scale of 1 to 5 at each site so that I can compare the risk of flooding at each of the four locations. 5 will mean ...

... Lyn rivers once flowed parallel to the coast eroding 660 ft deeply into the plateau, where it entered the sea at Lee Bay. With the breaching of the valley sides the East and West Lyn rivers cascaded to the shore ...

... (90 miles) to its mouth on the Gulf of California. The River Colorado drains parts of 7 states, a total area in Colorado, Wyoming, Nevada, Utah, Arizona, New Mexico and California, of about 626,800sq km. What controls / how have ...

... ends abruptly in a steep rock wall or trough head, for example the Lauterbrunnen Valley, Switzerland. Glacial troughs are occupied by small valley glaciers in high mountain ranges such as the Alps and Himalayas today. However, it is unlikely that these ...

... is a lot of it then the hydrograph is likely to have a high peak discharge where as if the precipitation is low-intensity and there is a small amount then the graph will have a gentle ascending limb. The ...

... order to formulate flood management and control policies, a thorough understanding of flood problems and how it can be solved is required. This can be done through data collection and analysis along with flood impact assessment. This study attempted to ...

... Power's roundness index to identify the shape of bedload particles. The sampling method I used was a combination of pragmatic systematic sampling to locate suitable sites of equal distance along the river and random sampling to choose various bedload particles. ...

... are more rounded down stream because the friction in the river should wear them down more and round them off. And lastly for my third hypothesis I think that the size of the pebble is not related to discharge because discharge ...

... and spring the river was quiet; then, in summer the river would turn from chalky - white to a red-brown and begin to rise. When the inundation came, levees were opened to flood the fields, sending water flowing from one ...

... my results. River basics Erosion Erosion is the breaking up of material. As the river moves through its course it changes from vertical to lateral erosion: There are four types of erosion> Hydraulic action - the river wears away the river bank from underneath.> Attrition ...

... reading. I will then record the reading on a specially created data collection form and repeat this at different intervals down the river.> DEPTH: I will collect the data on the depth of the river by wading half way across ...

... the rivers load. It comes from river erosion and weathering of the river banks. Especially when the river is bankfull, considerable quantities of load can be carried. The total amount of load that a river can carry is called its ...

... next it could be virtually zero. Long periods of rainfall are the main cause of flooding as the soil has become saturated it reaches its infiltration capacity and infiltration is reduced, therefore increasing the frequency of surface run off and the ...

... site from 1 to 8 in as much detail as possible including doing a Spearman's rank. I think that I have successfully completed my river survey as I have met each and every one of the things stated above. Firstly it ...

... calibre of the load decreases downstream. Calibre of load 72 170 189 153 102.5 69 300 203.5 128 130 164.5 130 88.3 106 107 188 There is no correlation between the calibre of the load and the stream downstream but this may be because there we took random samples from the river and we only took six samples. ...

... to site the width of the river is increasing. Furthermore, from looking at this graph I can also pick out that the river is getting wider through lateral erosion which simply means that the banks of the river are getting ...

... the gradient is very steep in the Upper Course as the Source is always the highest point. As the water flows down hill from the Source; it cuts down to sea level under gravity before becoming very slow moving when ...

... valley sides. There also are harsh weather conditions in the Pennies. There is tourism such as walking or hiking to visit the High Force waterfall and the scenic landscape. Also recreational activities take place as such as water sports take ...

... of the hard engineering work done on the Mississippi river actually made the consequences of the flood a lot more severe than if the river had been left to take its natural course. Artificial levees, which make up over 500km ...

... accurate results of the Ballybay River sites, will be our objectives. Six specific sites will be used for sampling. The field trip will last one day, as the river study is dynamic. As if it was a two day study the ...

... table to test how polluted a river is. It will be very useful, but to keep it a fair test then we would have to keep the same person doing the marking for the test. Below is a table that would ...