USGS

Measurement of Discharge by the Moving-Boat Method

U.S. Geological Survey, Techniques of Water-Resources Investigations, Book 3, Chapter A11

By George F. Smoot and Charles E. Novak


Table of Contents

Preface

Symbols and units

Abstract

Introduction

Theory of the moving-boat measurement

Equipment

Vane and angle indicator

Current meter

Rate indicator and counter

Battery charger

Sonic sounder

Boat

Preparation of the boat

Mounting of the equipment

Removal of the equipment

Measurement procedures

Selection and preparation of the site

Preparation of the equipment

Assembly of the equipment

Selection of the instrument settings

Functions of the crew members

Boat operator

Angle observer

Notekeeper

Computation of the measurement

Method of computation

Correction for width

Mean-in-vertical velocity adjustment

Determination of vertical-velocity coefficient

Application of adjustment

Selected references

 


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