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Volumetrisk metode

En direkte metode til måling af gennemstrømningen (vandmængden) af en flod. Denne metode har en lille fejl (<1%), men den er kun anvendelig til udløbsmålinger af små strømme (med lav gennemstrømning), normalt af forårsmængder, hvor udstrømningen opstår som en koncentreret strøm eller på steder, hvor alt rindende vand kan være fanget. Måling sker på en enkel og ukompliceret måde. Det er nok at placere en beholder med et kendt volumen under vandudstrømningen for at indfange alt det udstrømmende vand og måle den tid, hvor beholderen fylder med vand.

Kilde: www.openchannelflow.com

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