BS ISO 1070:2018 Hydrometry. Slope-area method

BS ISO 1070:2018

Hydrometry. Slope-area method

Status : Current   Published : November 2018



What is this standard about?

This document specifies a method of determining discharge in open channels from observations of the surface slope and cross-sectional area of the channel.

It is applicable to use under special conditions when direct measurement of discharge by typically more accurate methods, such as the velocity-area method, is not possible. Generally, the method can be used to determine discharge

a) for a peak flow that left high-water marks along the stream banks,

b) for a peak flow that left marks on a series of water-level gauges or where peak stages were recorded by that series of gauges, and

c) for flow observed at the time of determining gauge heights from a series of gauges.

The method is commonly used to undertake the extension of stage–discharge relationships above the highest gauged flows.

It does not apply to determining discharges in tidal reaches.

Standard NumberBS ISO 1070:2018
TitleHydrometry. Slope-area method
Publication Date07 November 2018
Normative References(Required to achieve compliance to this standard)ISO 4373, ISO 772
Informative References(Provided for Information)ISO/TS 25377, ISO 9123, ISO 748
ReplacesBS 3680-5:1992, ISO 1070:1992
International RelationshipsISO 1070:2018
Draft Superseded By17/30331883 DC
DescriptorsEstimation, Measurement characteristics, Channel flow, Formulae (mathematics), Flow, Surface water, Mathematical calculations, Liquid flow, Flow measurement, Ground water, Test equipment, Errors, Angular measurement, Area measurement, Water, Testing conditions
Title in FrenchHydrometrie. Methode de la pente de la ligne d'eau
ISBN978 0 580 92043 1
File Size1.252 MB

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