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1954
DOI: 10.1029/tr035i006p00951
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A method of sampling coarse river‐bed material

Abstract: Abstract:Białka is a typical river that has its origins in the high mountains of the High Tatra and the Belanske Tatra Mountains. Transport of gravel from the Tatra Mountains down to the foot of the mountains over a long period of time, during the Pleistocene and the post-glacial era, led to the formation of a typical braided river channel. During the last 150 years the river channel was gradually narrowed and deepened. This process has clearly intensified since the end of the 1960s due to human intervention t… Show more

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Cited by 1,941 publications
(1,379 citation statements)
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“…Average channel geometric properties of h, w and S were measured using an autolevel and tape, and bankfull geometry was determined using crosssection geometry and dominant vegetation lines. Information pertaining to grain-size distributions were obtained using random-walk pebble counts (Wolman, 1954) and automated digital photograph grain sieving (Butler et al, 2001;Graham et al, 2005;Strom et al, 2007a). Size fractions less than ≈8 mm were truncated due to the sampling techniques used.…”
Section: Data Collectionmentioning
confidence: 99%
“…Average channel geometric properties of h, w and S were measured using an autolevel and tape, and bankfull geometry was determined using crosssection geometry and dominant vegetation lines. Information pertaining to grain-size distributions were obtained using random-walk pebble counts (Wolman, 1954) and automated digital photograph grain sieving (Butler et al, 2001;Graham et al, 2005;Strom et al, 2007a). Size fractions less than ≈8 mm were truncated due to the sampling techniques used.…”
Section: Data Collectionmentioning
confidence: 99%
“…Furthermore, grain size has also been demonstrated to be an important variable for the habitat preferences of salmonids [e.g., Rimmer et al, 1983;Cunjak, 1988;Heggenes, 1996]. Methods for the field measurements of the grain size distributions of fluvial sediment are well established and are the subject of many studies [Wolman, 1954;Hey and Thorne, 1983;Church et al, 1987;Rice and Church, 1996;Bunte and Abt, 2001]. Generally, these methods are labor intensive and require a significant amount of fieldwork to implement.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore photosieving is not applicable in cases where subsurface grain sizes are required. Second, the minimal clast size that can be analyzed is typically in the gravel range, for example, Ibbeken and Schleyer [1986] only considered particles coarser than 20 mm, and Butler et al [2001a] followed the recommendations of Wolman [1954], designed for manual grain size measurements, and set the lower threshold of measurable size to 8 mm. These thresholds are directly related to image scale.…”
Section: Introductionmentioning
confidence: 99%
“…En cambio, en los tramos donde se ha observado la presencia de una coraza superficial más gruesa, como por ejemplo diversas barras activas entre Sant Celoni y Hostalric, se ha realizado un muestreo superficial por el método de conteo (o de Wolman, 1954), para determinar las caracterís-ticas de la coraza y un muestreo volumétrico (de unos 50 kg) del material que se encuentra bajo la superficie (Church et al, 1987).…”
Section: Datos Granulométricosunclassified