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Analysis of flow competence in an alluvial gravel bed stream, Dupuyer Creek, Montana
http://hdl.handle.net/10191/24669
http://hdl.handle.net/10191/24669eb9cfb17-f664-4e78-a8df-0f5b7ebab691
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
43_7_W07433.pdf (2.1 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-01-08 | |||||
| タイトル | ||||||
| タイトル | Analysis of flow competence in an alluvial gravel bed stream, Dupuyer Creek, Montana | |||||
| タイトル | ||||||
| タイトル | Analysis of flow competence in an alluvial gravel bed stream, Dupuyer Creek, Montana | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | flow competence | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | entrainment | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | bed load grain size | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | equal mobility | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | selective transport | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Whitaker, Andrew C.
× Whitaker, Andrew C.× Potts, Donald F. |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | [1] Critical shear stress and unit discharge flow competence models were tested against coarse bed load data from Dupuyer Creek, Montana, United States. Maximum particle sizes sampled (Dmax) and D50 to D90 percentiles in the bed load grain size distribution were well correlated with both shear stress and unit discharge. Bed load grain sizes became coarser with increasing flow strength. For the Dmax curve, Shields dimensionless parameter for the surface D50 was estimated at 0.044, and the exponent for relative particle size (Di/D50) was −0.59. In the unit discharge criterion the critical flow to entrain the surface D50 was poorly predicted. Flow competence relationships based on Dmax are prone to the influence of outliers and sample mass variability. The mean of the three largest particles, Dmax (3), is more sensitive to changes in flow strength than the D50 to D90 bed load grain sizes, and may represent a good compromise. | |||||
| 書誌情報 |
Water Resources Research en : Water Resources Research 巻 43, 号 7, p. W07433-1-W07433-16, 発行日 2007-07 |
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| 出版者 | ||||||
| 出版者 | American Geophysical Union | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 00431397 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA0088653X | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1029/2006WR005289 | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
