for validation and verification. The ranges of hydraulic variables of the Group 2 data are
shown below.
B.5.1 Bed Material Size
Gravel-Bed Rivers. The mean diameter of particle size has the range of 2.69 mm (very fine
gravel) to 28.65 mm (coarse gravel). The wide range of geometric data is,
: 0.001 4.614 m3/s
discharge, Q
width, W
: 0.1 2.0 m
depth, d
: 0.01 1.092 m
slope, S
: 0.0004 0.0227
Sand-Bed Rivers. The sand-bed rivers were divided into two groups as follows: very fine to
fine sand-bed rivers (0.062 mm 0.250 mm), and medium to very coarse sand-bed rivers
(0.251 mm 2.00 mm).
Very Fine to Fine Sand-Bed Rivers (0.062 0.250 mm). A total of 692 data sets from Group
2 including 23 river systems were used. The range of data is:
: 0.003673 235,000 m3/s
discharge, Q
width, W
: 0.346 3,090 m
depth, d
: 0.0341 68.00 m
slope, S
: 0.0000027 0.00769
Medium to Very Coarse Sand-Bed Rivers (0.251 mm 2.00 mm). A total of 546 data sets
including 23 river systems outside of the United States and an additional 68 data sets from
rivers in the United States includes: seven sets of data from the Black River near Galesville,
Wisconsin; three sets data from the Chippewa River near Caryville, Wisconsin; 14 sets of
data from the Chippewa River of at Durand, Wisconsin; 18 sets of data from the Chippewa
River near Pepin, Wisconsin; six sets of data from the Toutle River at Tower Road near
Silver Lake, Washington; nine sets of data from the Wisconsin River at Muscoda, Wisconsin;
and 11 sets of data from the Yampa River at Deerlodge Park, Colorado. The range of data is
as follows:
: 0.0075 151,000 m3/s
discharge, Q
width, W
: 1.00 2,608 m
depth, d
: 0.061 65.00 m
slope, S
: 0.0000138 0.0029
Silt-Bed Rivers. A total of 141 data sets from Group 2 including three river systems were
used. The range of data is:
: 1.15 41,200 m3/s
discharge, Q
width, W
: 4.3 3,110 m
depth, d
: 0.55 13.10 m
slope, S
: 0.0000120 0.00087
B.29
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