Data Ranges used in Development of Sediment
Transport Functions
The range of data used in the development of the sediment transport functions
that have been included in SAM.sed are summarized in Tables 9 through 21.
These summaries are based on the authors' stated ranges when presented in their
original papers. Otherwise, the summaries were determined based on the
author's description of his data base in combination with the data listings of
Brownlie (1981) or Toffaleti (1968).
Table 9. Ackers-White Transport Function
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Parameter
Flume Data
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Particle Size Range, mm
0.04 - 7.0
Specific Gravity
1.0 - 2.7
Multiple Size Classes
no
Velocity, fps
0.07 - 7.1
Depth, ft
0.01 - 1.4
Slope, ft per ft
0.00006 - 0.037
Width, ft
0.23 - 4
Water Temperature, Deg F
46 - 89
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Table 10. Brownlie Transport Function
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Parameter
River Data
Flume Data
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Particle Size Range, mm
0.086 - 1.4
0.088 - 1.4
Multiple Size Classes
no
no
Velocity, fps [calculated]
1.2 - 7.9
0.7 - 6.6
Depth, ft
0.35 - 57
0.11 - 1.9
Slope, ft per ft
0.00001 - 0.0018
0.00027 - 0.017
Width, ft
6.6 - 3640
0.83 - 8.0
Water Temperature, Deg F
32 - 95
35 - 102
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Table 11. Colby Transport Function
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Parameter
Data Range
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Particle Size Range, mm
0.18 - 0.70
Multiple Size Classes
no
Velocity, fps
0.70 - 8.0
Depth, ft
0.20 - 57
Slope, ft per ft
0.000031 - 0.010
Width, ft
0.88 - 3000
Water Temperature, Deg F
32 - 89
Correction for Fines, ppm
yes
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52
Chapter 3
Theoretical Basis for SAM.sed Calculations
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