USGS

Low-Flow Characteristics of Streams in Virginia

U.S. Geological Survey, Water Supply Paper 2374

by Donald C. Hayes


Table of Contents

Abstract

Introduction

Purpose and Scope

Approach

Previous Studies

Physical Setting

Location

Physiography

Coastal Plain Physiographic Province

Piedmont Physiographic Province

Blue Ridge Physiographic Province

Valley and Ridge Physiographic Province

Appalachian Plateaus Physiographic Province

Climate

Low-Flow Characteristics

Factors Affecting Low Flows

Methods for Determining Low-Flow Characteristics

Gaged Sites

Long-Term Continuous-Record Sites

Short-Term Continuous-Record Sites

Partial-Record Sites

Ungaged Sites

Sites on Gaged Streams

Sites on Ungaged Streams

Results, Reliability, and Limitations of Estimating Methods

Long-Term Continuous-Record Sites

Short-Term Continuous-Record Sites and Partial-Record Sites

Ungaged Sites on Gaged Streams

Ungaged Sites on Ungaged Streams 21

Coastal Plain Regions

Piedmont Regions

Piedmont/Blue Ridge Transition Region

Blue Ridge Region

Valley and Ridge Region

Appalachian Plateaus Region

Summary

Selected References

Appendixes

 


 

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