| Revision as of 08:35, 8 May 2008 editXavexgoem (talk | contribs)Extended confirmed users, Rollbackers9,849 editsm Reverted edits by 82.71.216.91 (talk) to last version by Xavexgoem← Previous edit | Revision as of 08:36, 8 May 2008 edit undoRobmh4 (talk | contribs)5 edits ←Replaced content with 'poo'Next edit → | ||
| Line 1: | Line 1: | ||
| poo | |||
| {{Orphan|date=October 2006}} | |||
| The '''Bradshaw Model''' is a geographical model which describes how a river's characteristics vary between the ] and ] of a ]. It shows that ], occupied channel width, channel depth and average load quantity increases ]. Load particle size, channel bed roughness and gradient are all characteristics which decrease ]. | |||
| == The Origins of the Bradshaw Model == | |||
| The model first appears as an illustration in M J Bradshaw's 1978 high school textbook The Earth's Changing Surface. Bradshaw's illustration is a simplifcation of Stanley Schumm's river model which had been published a year earlier in The Fluvial System, although aspects of the model had already appeared in a series of academic papers over the previous 10 years. Schumm based his model on an empirical analysis of a variety of North American rivers and suggested that it could be used to predict how any given river channel would respond to changes in discharge or sediment supply caused by river engineering, such as a ] or flood relief channel. | |||
| ==External links== | |||
| * | |||
| {{topography-stub}} | |||
| ] | |||
Revision as of 08:36, 8 May 2008
poo