Bradshaw model: Difference between revisions

Browse history interactively ← Previous edit Next edit →Content deleted Content addedVisual WikitextInline

Revision as of 17:56, 5 March 2019 edit82.42.241.118 (talk) Added true contentTags: Mobile edit Mobile web edit← Previous edit		Revision as of 17:56, 5 March 2019 edit undo82.42.241.118 (talk)No edit summaryTags: Mobile edit Mobile web editNext edit →
Line 5:		Line 5:
	}}		}}

	The '''Bradshaw Model''' is a geographical model, which describes how a river's characteristics vary between the ''upper course'' and ''lower course'' of a river. It shows ], occupied channel width, channel depth, and how the average load quantity increases downstream,<ref>{{Cite web\|url=https://www.geography-fieldwork.org/rivers/river-variables.aspx\|title=Models of downstream change\|last=\|first=\|date=\|website=Geography Fieldwork\|publisher=]\|archive-url=https://web.archive.org/web/20160513161314/https://www.geography-fieldwork.org/rivers/river-variables.aspx\|archive-date=May 13, 2016\|dead-url=\|access-date=}}</ref> for example; load particle size, channel bed roughness, and gradient are all characteristics that decrease. This is represented by triangles; an increase in the size of a triangle represents an increase in the variable. Generally it shows the characteristics we expect to see in a river, but due to the nature of rivers and the ever-changing environment in which we live not all rivers fit the model perfectly; therefore the model is usually used in order to compare natural rivers to concepts laid down by the model. For example,Loughton Brook in Epping forest is a match to the Bradshaw model.		The '''Bradshaw Model''' is a geographical model, which describes how a river's characteristics vary between the ''upper course'' and ''lower course'' of a river. It shows ], occupied channel width, channel depth, and how the average load quantity increases downstream,<ref>{{Cite web\|url=https://www.geography-fieldwork.org/rivers/river-variables.aspx\|title=Models of downstream change\|last=\|first=\|date=\|website=Geography Fieldwork\|publisher=]\|archive-url=https://web.archive.org/web/20160513161314/https://www.geography-fieldwork.org/rivers/river-variables.aspx\|archive-date=May 13, 2016\|dead-url=\|access-date=}}</ref> for example; load particle size, channel bed roughness, and gradient are all characteristics that decrease. This is represented by triangles; an increase in the size of a triangle represents an increase in the variable. Generally it shows the characteristics we expect to see in a river, but due to the nature of rivers and the ever-changing environment in which we live not all rivers fit the model perfectly; therefore the model is usually used in order to compare natural rivers to concepts laid down by the model.


			For example,Loughton Brook in Epping forest is a match to the Bradshaw model.
	<ref>earthstudies.co.uk</ref>		<ref>earthstudies.co.uk</ref>

Revision as of 17:56, 5 March 2019

A geographical model, which describes how a river's characteristics vary between the upper course and lower course

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages)

This article needs more links to other articles to help integrate it into the encyclopedia. Please help improve this article by adding links that are relevant to the context within the existing text. (February 2017) (Learn how and when to remove this message)

This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.
Find sources: "Bradshaw model" – news · newspapers · books · scholar · JSTOR (September 2012)

(Learn how and when to remove this message)

The Bradshaw Model is a geographical model, which describes how a river's characteristics vary between the upper course and lower course of a river. It shows discharge, occupied channel width, channel depth, and how the average load quantity increases downstream, for example; load particle size, channel bed roughness, and gradient are all characteristics that decrease. This is represented by triangles; an increase in the size of a triangle represents an increase in the variable. Generally it shows the characteristics we expect to see in a river, but due to the nature of rivers and the ever-changing environment in which we live not all rivers fit the model perfectly; therefore the model is usually used in order to compare natural rivers to concepts laid down by the model.

For example,Loughton Brook in Epping forest is a match to the Bradshaw model.

References

"Models of downstream change". Geography Fieldwork. Field Studies Council. Archived from the original on May 13, 2016. {{cite web}}: Cite has empty unknown parameter: |dead-url= (help)
earthstudies.co.uk

Categories: