Graph Descriptions

Graph Descriptions The width of the river increases from the source, to the mouth. The width is smallest at ‘site 1’ and largest at ‘site 4’. ‘Site’ 4’ is 14.8 times wider than ‘site1’. The depth of the river starts reasonably deep, then gets shallower, then the depth increases and then increases again at ‘site 4’. The river is at it’s deepest at ‘site 1’. At ‘site1’ the river is 2.64 times deeper than at ‘site 2’. The cross sectional area of the river increases downstream. At ‘site 1’ the CSA is smallest and at ‘site 4’ it is largest. The cross sectional area at ‘site 4’ is 22.4 times larger than at ‘site 1’. The velocity of the river, in the cork test, shows that it starts small, then increases by a large amount, then decreases and then decreases again at ‘site 4’. The smallest velocity is at ‘site 1’ and the greatest velocity is at ‘site 2’. The velocity at ‘site 2’ is 5.2 times higher than at ‘site 1’. The velocity of the river, in the flowmeter test, shows that the velocity generally increases downstream until the last site when it slightly decreases. The velocity is smallest at ‘site 1’ and largest at ‘site 3’. The velocity at ‘site 3’ is 4.5 times higher than at ‘site 1’.