Armfield Instruction Manual
44
Elapsed time
(min)
Sediment yield
(g/min)
One method of making diagrams of the channel requires two rulers or measuring
sticks, both of which must be rigid and one of which must be at least 1 metre in
length. This long ruler should be laid across the top of the tank from one side to the
other, parallel to the end, and then moved along the tank in steps of 10 cm. At each
position, the second ruler is then used to measure the distance from the top line of
the tank to the sand surface, in steps across the entire width of the tank. Reference
points should be recorded for any notable features such as the positions of the
channel sides, sand bars, sub-channels and thalwegs.
Channel length may be measured by laying a piece of string along the side of the
channel, then noting the length of the string. Thalweg length may be measured in a
similar fashion.
Conclusion
Describe the development of the channel cross-sectional and planform morphology
and the features noted during the experiment, relating this to the initial conditions,
river flow rate and rate of sediment transport (sediment yield). Discuss the relevance
of laboratory simulations to real-world situations.
Summary of Contents for S12-MKII
Page 1: ...Advanced Environmental Hydrology System Instruction Manual S12 MKII ISSUE 21 February 2014...
Page 4: ......
Page 8: ...4 Equipment Diagrams Figure 1 Front View of S12 MKII Hydrology System...
Page 9: ...Equipment Diagrams 5 Figure 2 Plan View of S12 MKII Hydrology System...
Page 10: ...Armfield Instruction Manual 6 Figure 3 End View of S12 MKII Hydrology System...
