Flood-Runoff Analysis

2,51
MB

214
stron

6355
ID UNITED STATES ARMY CORPS OF ENGINEERS

1994
rok

Table of Contents

Chapter 1

Introduction

Purpose 1-1 1-1

Applicability 1-2 1-1

References 1-3 1-1

Scope and Organization 1-4 1-1

Relationship to Other Guidance 1-5 1-1

Part I Problem Definition and Selection of Methodology

Chapter 2

Introduction to Flood-Runoff Analysis

General 2-1 2-1

Applications of Flood-Runoff Analysis 2-2 2-1

Nature of Flood Hydrology 2-3 2-2

Data Considerations 2-4 2-3

Approaches to Flood-Runoff Analysis 2-5 2-3

Chapter 3

Study Formulation and Reporting

General 3-1 3-1

Overview of Corps Flood Damage Reduction Studies 3-2 3-1

Planning and Managing the Hydrologic Investigation 3-3 3-1

Hydrologic Engineering Analysis Strategy 3-4 3-2

Hydrologic Requirements for Planning Studies 3-5 3-3

Preconstruction Engineering and Design (PED) Phase 3-6 3-6

Construction and Operation 3-7 3-7

Reporting Requirements 3-8 3-7

Summary 3-9 3-8

Part II Hydrologic Analysis

Chapter 4

Rainfall Analysis

General 4-1 4-1

Point Rainfall Data 4-2 4-1

Rainfall Data From Remote Sensors 4-3 4-1

Areal and Temporal Distribution of Rainfall Data 4-4 4-5

Chapter 5

Snow Analysis

General 5-1 5-1

Physical Processes 5-2 5-1

Data Requirements, Collection, and Processing 5-3 5-2

Simulating Snow Accumulation 5-4 5-3

Simulating Snowmelt 5-5 5-6

Chapter 6

Infiltration/Loss Analysis

General 6-1 6-1

Gauged versus Ungauged Parameter Estimation 6-2 6-5

Antecedent Moisture Conditions 6-3 6-5

Surface Loss Estimation 6-4 6-6

Infiltration Methods 6-5 6-6

Impervious Areas 6-6 6-20

Method Selection 6-7 6-21

Chapter 7

Precipitation Excess - Runoff Transformation

General 7-1 7-1

Runoff Subdivision 7-2 7-1

Unit Hydrograph Approach 7-3 7-1

Kinematic Wave Approach 7-4 7-12

Chapter 8

Subsurface Runoff Analysis

General 8-1 8-1

Event-Oriented Methods 8-2 8-1

Evapotranspiration 8-3 8-5

Continuous Simulation Approach to Subsurface Modeling 8-4 8-11

Existing Continuous Simulation Models 8-5 8-16

Parameter Estimation for Continuous Simulation Models 8-6 8-23

Chapter 9

Streamflow and Reservoir Routing

General 9-1 9-1

Hydraulic Routing Techniques 9-2 9-2

Hydrologic Routing Techniques 9-3 9-5

Applicability of Routing Techniques 9-4 9-21

Chapter 10

Multisubbasin Modeling

General 10-1 10-1

General Considerations for Selecting Basin Components 10-2 10-1

Selection of Hydrograph Computation Locations 10-3 10-2

Calibration of Individual Components 10-4 10-4

Calibration of Multisubbasin Model 10-5 10-4

Verification of the Multisubbasin Model 10-6 10-5

Part III Methods for Flood-Runoff Analysis

Chapter 11

Simplified Techniques

Introduction 11-1 11-1

Rational Method 11-2 11-1

Regional Frequency Analysis 11-3 11-1

Envelope Curves 11-4 11-5

Rainfall Data Sources 11-5 11-6

Chapter 12

Frequency Analysis of Streamflow Data

General 12-1 12-1

Frequency Analysis Concepts 12-2 12-1

Graphical Techniques 12-3 12-3

Numerical Techniques 12-4 12-5

Special Considerations 12-5 12-10

Chapter 13

Analysis of Storm Events

Introduction 13-1 13-1

Model Development 13-2 13-1

Model Calibration 13-3 13-2

Simulation of Frequency-Based Design Floods 13-4 13-3

Simulation of Standard Project and Probable Maximum Floods 13-5 13-5

Chapter 14

Period-of-Record Analysis

General 14-1 14-1

Simulation Requirements 14-2 14-1

Model Calibration 14-3 14-1

Applications 14-4 14-4

Part IV Engineering Applications

Chapter 15

Data Collection and Management

General 15-1 15-1

Data Management Concepts 15-2 15-1

Geographic Information Systems 15-3 15-1

Data Acquisition and Use 15-4 15-2

Chapter 16

Ungauged Basin Analysis

General 16-1 16-1

Loss-Model Parameter Estimates 16-2 16-2

Runoff-Model Parameter Estimates 16-3 16-3

Routing-Model Parameter Estimates 16-4 16-4

Statistical-Model Parameter Estimates 16-5 16-5

Reliability of Estimates 16-6 16-6

Chapter 17

Development of Frequency-Based Estimates

Introduction 17-1 17-1

Choice of Methodology 17-2 17-1

Hypothetical Storm Frequency 17-3 17-2

Transfer of Frequency Information with Hypothetical Events 17-4 17-3

Development of Future-Condition Frequency Estimates 17-5 17-3

Adjustment of Peak Discharges to Represent Stationary Conditions 17-6 17-4

Chapter 18

Evaluating Change

General 18-1 18-1

Evaluating Catchment and Conveyance-System Change 18-2 18-1

Procedure for Evaluating Damage-Reduction Plans 18-3 18-3

Evaluating Reservoir and Detention Basins 18-4 18-4

Evaluating Channel Alterations and Levees 18-5 18-8

Evaluating Other Alternatives 18-6 18-10

Appendix A

References

Appendix B

Hydrologic Engineering Management Plan for Flood Damage Reduction Feasibility-Phase Studies