Table 5.20. Sediment Transport Function Rankings for RIO Data Set.
DATA SET: RIO
# DATA POINTS
IN SET: 38
Percent of data points
Average Standard
Standard Deviation of
FUNCTION
in discrepancy ratio
deviation of Discrepancy
Discrepancy Ratio
range
Ratio
PROFITT(SUTHERLAND)
97.37
1.343
0.5688
94.74
0.861
0.3329
ACKERS-WHITE.
2
ACKERS-WHITE, D50
94.74
0.818
0.3245
89.47
1.013
0.4775
VAN RIJN
1
BROWNLIE, D50
86.84
0.729
0.3848
86.84
0.731
0.4029
COLBY
3
ENGELUND-HANSEN
65.79
0.706
0.4176
YANG.
63.16
0.567
0.4759
YANG, D50
63.16
0.579
0.4672
EINSTEIN(TOTAL-LOAD)
63.16
1.309
0.8508
TOFFALETI-SCHOKLITSCH
63.16
0.633
0.4708
TOFFALETI-MPM
63.16
0.622
0.4756
LAURSEN(COPELAND)
57.89
1.962
1.3509
TOFFALETI.
42.11
0.541
0.5399
LAURSEN(MADDEN),1985
39.47
0.508
0.5844
EINSTEIN(BED-LOAD)
2.63
0.177
0.8408
MPM(1948).
0.00
0.123
0.8904
SCHOKLITSCH
0.00
0.137
0.8794
PARKER
0.00
0.000
1.0134
MPM(1948),D50
0.00
0.140
0.8735
Data Ranges of the Data Sets used in SAM.aid
The data sets used in SAM.aid for comparison of user-input data each have a
range of values for the five selection parameters: d50, velocity, depth, width, and
slope. These ranges are given in Table 5.22. However, in the SAM.aid program
the upper and lower limits of the ranges for D50 have been extended to the next
size class boundary, according to the American Geophysical Union standard size
classes. This allows a somewhat wider range of choices to be offered to the user
without compromising the theory behind SAM.aid.
74
Chapter 5
Theoretical Basis for SAM.aid
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