Talk:Strahler number: Difference between revisions
Rating article for WikiProject Mathematics. Quality: Start / Priority: Low / Field: discrete (script assisted). Please report any errors on my talk page. |
No edit summary |
||
Line 16: | Line 16: | ||
The Strahler number of a tree is almost the same thing as its [[pathwidth]], right? Can this observation be sourced, adequately enough to include it in the article? —[[User:David Eppstein|David Eppstein]] ([[User talk:David Eppstein|talk]]) 17:29, 1 April 2009 (UTC) |
The Strahler number of a tree is almost the same thing as its [[pathwidth]], right? Can this observation be sourced, adequately enough to include it in the article? —[[User:David Eppstein|David Eppstein]] ([[User talk:David Eppstein|talk]]) 17:29, 1 April 2009 (UTC) |
||
== Shreve indeox of stream order == |
|||
A similar measure of "downstreamness" is the Shreve measure whereby a channel with no previous tributaries would be a first order stream, a channel with three tributaries upstream would be a third order stream. My A-level geography class used this as a crude method of showing how downstream we were and it proved quite effective. |
|||
If I havent been clear enough (probably not it's hard to explain) have a look at this website which has a quick diagram of both the shreve and strahler measures |
|||
http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=Stream%20Order |
|||
Would it be worth making a new page for this and tagging it onto "see also" or should the shreve method be added to the bottom of this page [[User:Biqh|Biqh]] ([[User talk:Biqh|talk]]) 10:11, 19 January 2011 (UTC) |
Revision as of 10:11, 19 January 2011
Mathematics Start‑class Low‑priority | ||||||||||
|
Rivers Unassessed | ||||||||||
|
Geology Unassessed | ||||||||||
|
When rivers divide
What happens to the order when a stream divides into more than one channel? —Ian Spackman 02:58, 4 July 2007 (UTC)
- That's not related to the tributary problem discussed here, but some distributaries (i.e., Wax Lake Delta) are similarly fractal. Awickert (talk) 03:39, 2 April 2009 (UTC)
- It is discussed in river bifurcation. I just removed some material from that article that more properly belongs here. —David Eppstein (talk) 04:24, 2 April 2009 (UTC)
Rooted trees
Looks good, just one comment: It might help the reader (at least me) if the page explicitly mentioned that everything here is about rooted trees. (In particular, "paths of degree-one nodes" is a bit strange if you think free trees. This could be replaced with something slightly less ambiguous.) — Miym (talk) 07:47, 1 April 2009 (UTC)
Pathwidth
The Strahler number of a tree is almost the same thing as its pathwidth, right? Can this observation be sourced, adequately enough to include it in the article? —David Eppstein (talk) 17:29, 1 April 2009 (UTC)
Shreve indeox of stream order
A similar measure of "downstreamness" is the Shreve measure whereby a channel with no previous tributaries would be a first order stream, a channel with three tributaries upstream would be a third order stream. My A-level geography class used this as a crude method of showing how downstream we were and it proved quite effective. If I havent been clear enough (probably not it's hard to explain) have a look at this website which has a quick diagram of both the shreve and strahler measures http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=Stream%20Order Would it be worth making a new page for this and tagging it onto "see also" or should the shreve method be added to the bottom of this page Biqh (talk) 10:11, 19 January 2011 (UTC)