| Abstract: | A low stress gravel bed river is a river where the cross-sectional average dimensionless shear stress (??*) rarely exceeds 0.047. That is the case for the Gunnison River below Delta in Western Colorado. The cross-sectional average ??* in the Gunnison River has not exceeded 0.047, except at one cross section during one year, in the 87 years of record. A ??* of 0.047 is the critical ??* in the bed-load equation considered to be most applicable to gravel/cobble bed rivers (the Meyer-Peter, Mueller equation). According to this equation, there has been no bed-material movement in the Gunnison River since 1920; in fact there has been bed-material movement and this movement is biologically important. Bed-material is moved when the ??* is 0.016 or larger. Streamflows that cause a ??* of at least 0.016 maintain the aquatic habitat in a low shear stress river. |
| Genre: | Conference Paper |
| ProdID: | 70020176 |
| Citation Author: | Milhous, Robert, T. |
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| Citation End Page: | 604 |
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| Citation Language: | English |
| Citation Larger Work Title: | Proceedings, Congress of the International Association of Hydraulic Research, IAHR |
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| Citation Number Of Pages: | 6 |
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| Citation Publisher: | ASCE |
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| Citation Search Results Text: | Low shear stress gravel-bed river; 1997; Conference Paper; Proceedings, Congress of the International Association of Hydraulic Research, IAHR; Milhous, Robert, T. |
| Citation Start Page: | 599 |
| Citation Volume: | B pt 1 |
| Citation Year: | 1997 |
| Type: | citation/reference |
| Text: | Low shear stress gravel-bed river; 1997; Conference Paper; Proceedings, Congress of the International Association of Hydraulic Research, IAHR; Milhous, Robert, T. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1997 00:00 -0600 |
| Publisher: | ASCE |
