USGS

General Field and Office Procedures for Indirect Discharge Measurements

U.S. Geological Survey, Techniques of Water-Resources Investigations, Book 3, Chapter A1

By M. A. Benson and Tate Dalrymple


Table of Contents

Place

Symbols and units

Abstract

Introduction

Acknowledgments

Collection of field data

Selection of site

Field survey

Vertical control

Peg test

Adjustment of instrument

Horizontal control

Field notes

Surveying equipment

Hints on surveying

Ground plan

High-water marks

Surge

Identification and rating of high-water marks

Types of high-water marks

Determination of gage height

Cross sections

Survey

Soundings

Scour

Measurement of horizontal distances

Field notes

Photographs

Historical data

Sampling streambed material

Definition

Sampling of fine to moderately coarse bed material

Sampling of coarse bed material

Problem reaches

Analysis of data

Selection of roughness coefficient

Stable channels

Base value of n

Cross-section irregularities

Depth of flow

Vegetation

Alinement

Example

Sand channels

Office procedures

Order of computations

Plan

Plotting methods

Base line for stationing

Listing of high-water marks

High-water profiles

Cross sections

Cross-section properties

Computation of discharge

Conveyance

Friction loss

Velocity head

Final discharge

Measurement summary

Assembly of computations

Selected references


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