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<p>This document specifies a method of determining discharge in open channels from observations of the surface slope and cross-sectional area of the channel. </p>
<p>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</p>
<p>a) for a peak flow that left high-water marks along the stream banks,</p>
<p>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</p>
<p>c) for flow observed at the time of determining gauge heights from a series of gauges.</p>
<p>The method is commonly used to undertake the extension of stage?discharge relationships above the highest gauged flows. </p>
<p>It does not apply to determining discharges in tidal reaches.</p>
Reģistrācijas numurs (WIID)
69287
Darbības sfēra
<p>This document specifies a method of determining discharge in open channels from observations of the surface slope and cross-sectional area of the channel. </p>
<p>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</p>
<p>a) for a peak flow that left high-water marks along the stream banks,</p>
<p>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</p>
<p>c) for flow observed at the time of determining gauge heights from a series of gauges.</p>
<p>The method is commonly used to undertake the extension of stage?discharge relationships above the highest gauged flows. </p>
<p>It does not apply to determining discharges in tidal reaches.</p>
