BSI PD ISO/TR 9212:2015
$167.15
Hydrometry. Methods of measurement of bedload discharge
Published By | Publication Date | Number of Pages |
BSI | 2015 | 36 |
This Technical Report reviews the current status of direct and indirect bedload-measurement techniques. The methods are mainly based on grain size distribution of the bedload, channel width, depth, and velocity of flow. This Technical Report outlines and explains several methods for direct and indirect measurement of bedload in streams, including various types of sampling devices.
The purposes of measuring bedload-transport rates are to
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increase the accuracy of estimating total sediment load in rivers and deposition in reservoirs,
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gain knowledge of bedload transport that cannot be completely measured by conventional suspended-sediment collection methods,
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provide data to calibrate or verify theoretical transport models, and
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provide information needed in the design of river diversion and entrainment structures.
NOTE The units of measurement used in this Technical Report are SI units.
PDF Catalog
PDF Pages | PDF Title |
---|---|
6 | Foreword |
7 | Introduction |
9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Measurement of bedload 4.1 General 4.2 Direct measurement methods |
10 | 4.3 Indirect measurement methods 5 Design and strategy of measurement of bedload discharge 6 Site selection |
11 | 7 Bedload samplers and traps 7.1 Bedload samplers 7.1.1 Requirements of an ideal bedload sampler 7.1.2 Basket or box type sampler |
12 | 7.1.3 Frame and net sampler 7.1.4 Pressure-difference sampler |
13 | 7.1.5 Advantages and disadvantages |
17 | 7.1.6 Characteristics of bedload samplers |
18 | 7.2 Measurement using bedload trap 7.2.1 Vortex tube bedload trap |
19 | 7.2.2 Pit and Trough trap |
20 | 7.2.3 Advantages and disadvantages 8 Procedures for measurement of bedload discharge using bedload samplers 8.1 General |
21 | 8.2 Sample identification |
22 | 8.3 Calculations |
23 | 8.4 Errors |
24 | 9 Indirect measurement of bedload 9.1 General 9.2 Differential measurement 9.3 Volumetric measurement |
25 | 9.4 Dune-tracking 9.4.1 Moving boat 9.4.2 In situ echo sounder |
26 | 9.4.3 Accuracy of the dune-tracking methods 9.5 Tracers 9.6 Remote sensing LiDAR |
27 | 9.7 Acoustic instruments 9.8 Acoustic Doppler current profiler |
28 | Annex A (informative) Bedload-surrogate monitoring technologies[8] |
32 | Bibliography |