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BS ISO 1070:2018 Hydrometry. Slope-area method

BS ISO 1070:2018

Hydrometry. Slope-area method

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Standard number:BS ISO 1070:2018
Pages:36
Released:2018-11-07
ISBN:978 0 580 92043 1
Status:Standard
DESCRIPTION

BS ISO 1070:2018


This standard BS ISO 1070:2018 Hydrometry. Slope-area method is classified in these ICS categories:
  • 17.120.20 Flow in open channels

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

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

  2. 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

  3. 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.