Velocity-area method

WMO >> HWR >> Assessment of the Performance of Flow Measurement Instruments and Techniques >> Discharge techniques database

 

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 = Mentioned as been used by at least one National Hydrological Service (NHS)

WMO:

  Guide to Hydrological practice, WMO-168
Manual on stream gauging (WMO N° 1044)

ISO N°:

  ISO 1088: Hydrometry -- Velocity-area methods using current-meters -- Collection and processing of data for determination of uncertainties in flow measurement
  ISO 2425: Measurement of liquid flow in open channels under tidal conditions
  ISO 2537: Hydrometry -- Rotating-element current-meters
  ISO 4369: Measurement of liquid flow in open channels -- Moving-boat method
  ISO 4375:2004 : Hydrometric determinations -- Cableway systems for stream gauging
  ISO 6416:2004 Hydrometry -- Measurement of discharge by the ultrasonic (acoustic) method
  ISO 748:1979: Hydrometry -- Measurement of liquid flow in open channels using current-meters or floats
  ISO 748:1997: Hydrometry -- Measurement of liquid flow in open channels using current-meters or floats
  ISO 748:2000: Hydrometry -- Measurement of liquid flow in open channels using current-meters or floats
  ISO 748:2007: Hydrometry -- Measurement of liquid flow in open channels using current-meters or floats
  ISO 9213: Measurement of total discharge in open channels -- Electromagnetic method using a full-channel-width coil
  ISO TR 7178:Liquid flow measurement in open channels -- Velocity-area methods -- Investigation of total error
  ISO/CD TR 24578: Hydrometry -- Acoustic Doppler profiler -- Method and application for measurement of flow in open channels
  ISO/TR 9823:1990: Liquid flow measurement in open channels -- Velocity-area method using a restricted number of verticals
  ISO/TS 15768:2000: Measurement of liquid velocity in open channels -- Design, selection and use of electromagnetic current meters
  ISO/TS 24154:2005: Hydrometry -- Measuring river velocity and discharge with acoustic Doppler profilers

CEN N°:

  EN ISO 4375:2004: Hydrometric determinations - Cableway systems for stream gauging (ISO 4375:2000)
  EN ISO 6416:2005:Hydrometry - Measurement of discharge by the ultrasonic (acoustic) method (ISO 6416:2004)

Other references:

  Collection and processing of data: ISO 1088 (AS 3778.3.4)   [Australia]
  Computation of Discharge Using the Index-Velocity Method in Tidally Affected Areas, C. A. Rhul and M. Simpson.   [USA]
  Current meters and floats: ISO 748 (AS 3778.3.1)   [Australia]
Discharge measurements at gaging stations, USGS Techniques and Methods Book 3, Chapter A8   [USA]
  Electromagnetic: ISO 9213 (AS 3778.3.8)   [Australia]
  Estonian National standard   [Estonia]
  Flow in tidal channels: ISO 2425 (AS 3778.3.6)   [Australia]
  Hydrographic Service   [Italy]
  IAC: Instructivo para Aforo de Corrientes, Ed 1993, CONAGUA   [Mexico]
  Investigation of total error: ISO TR7178 (AS 3778.3.5)   [Australia]
  IRD (ex-ORSTOM)   [Ivory Coast]
  Lesson Package 10.1 of “Hydrometric Technician Apprenticeship or Professional Training Program (formerly known as the Career Development Program)”   [Canada]
  ME-10-231-16: Measurement of discharge by velocity-area method in open channels   [Hungary]
Measurement and computation of streamflow: Measurement of stage and discharge, USGS Water-Supply Paper 2175, volume 1, 1982   [USA]
Measuring Discharge with Acoustic Doppler Current Profilers from a Moving Boat, USGS Techniques and Methods, Book 3, Chapter 22, Section A   [USA]
  Moving boats: ISO 4369 (AS 3778.3.2)   [Australia]
  MSZ 15303: Technical requirements of hydrographic observations. Measurement of water-level, discharge, temperature   [Hungary]
  National Standards   [Bulgaria]
  OTN ŽP - 3108   [Slovak Republic]
  qSOP-NA007-01-1981: Hydrometric Field Manual - Measurement of Streamflow   [Canada]
  qSOP-NA007-01-1982 : Manuel pratique de leves hydrometriques - Jaugeage des cours d'eau   [Canada]
  sSOP-NA011-01-1984: Construction and Operation of Streamflow Gauging Cableways   [Canada]
  Tableau des vitesses BAREL   [Burundi]
  Ultrasonics: ISO 6416 (AS 3778.3.7)   [Australia]

Methods

» Velocity-area method
» Tracer/Dye-dilution method
» Stage-discharge relations
» Stage-velocity relations
» Slope-area
» Slope-conveyance
» Indirect Methods using energy equation (culvert, bridge, etc.)
» Critical Depth
» Hydraulic structures
» Rainfall/runoff with rain gauges
» Rainfall/runoff with weather radar
» Rainfall/runoff coupled with weather model
» Satellite/aerial based lidar system
» Other methods
» General standards