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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
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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

  1. increase the accuracy of estimating total sediment load in rivers and deposition in reservoirs,

  2. gain knowledge of bedload transport that cannot be completely measured by conventional suspended-sediment collection methods,

  3. provide data to calibrate or verify theoretical transport models, and

  4. 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
BSI PD ISO/TR 9212:2015
$167.15