Infiltration Theory for Hydrologic Applications
1st Edition
Published on 1. January 2002
Book
Paperback/Softback
222 pages
978-0-87590-319-4 (ISBN)
Description
Published by the American Geophysical Union as part of the Water Resources Monograph Series, Volume 15.
Here is your state-of-the-art guidebook through soil infiltration theory in response to hydrologic problems. By focusing on the theoretical basis of physically based infiltration functions and their application, Infiltration Theory for Hydrologic Applications presents an in-depth review of current issues and concerns. For scientists wishing concise and robust equations that can be applied in models for a variety of objectives.
Here is your state-of-the-art guidebook through soil infiltration theory in response to hydrologic problems. By focusing on the theoretical basis of physically based infiltration functions and their application, Infiltration Theory for Hydrologic Applications presents an in-depth review of current issues and concerns. For scientists wishing concise and robust equations that can be applied in models for a variety of objectives.
More details
Series
Language
English
Place of publication
United States
Publishing group
John Wiley & Sons Inc
Target group
Professional and scholarly
Product notice
Paperback (trade)
Unsewn / adhesive bound
Dimensions
Height: 229 mm
Width: 152 mm
Thickness: 12 mm
Weight
329 gr
ISBN-13
978-0-87590-319-4 (9780875903194)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
Schweitzer Classification
Persons
Roger E. Smith and Keith R. J. Smettem are the authors of Infiltration Theory for Hydrologic Applications, published by Wiley.
Content
Preface vii
1. Introduction 1
Brief History 1
Runoff Mechanisms 3
Engineering and Scientific Approaches to Hydrology 4
Objective and Scope of this Work 5
2. Basic Porous Media Hydraulics 7
Capillary Properties of Soil Water 7
Porous Media 9
Darcy's Law 12
Hydraulic Characteristics of Porous Media 13
Steady Flow Soil Water Relations 14
Functional Representation of Hydraulic Characteristics 18
3. Some Essentials of One-Dimensional Porous Media Dynamics 25
Introduction 25
Absorption: Gravity-Free Intake 27
Infiltration: Vertical Flow 31
Mathematical Approximations for Soil Water Flow 34
Approximations for Soil Hydraulic Characteristics 36
4. A Realistic Integrable Nonlinear Model for Transient Unsaturated Flow 41
Introduction 41
Integrable Forms of Richards' Equation' 43
Solution of Nonlinear Diffusion Equation 46
Required Forms for Soil Characteristics 49
Solution of the Integrable Form 55
Discussion and Summary 60
5. Absorption and Infiltration Relations and the Infiltrability-Depth
Approximation 63
Introduction 63
Absorption 65
Infiltration 73
Stability of Flux-ConcentrationR elation 85
6. Infiltrability Models: Comparisons and Application 97
Introduction 97
Timing of Pending 98
Time Explicit Approximations 108
Applying the Infiltrability Models to Variable Rainfall Patterns 114
7. Applying Infiltration Models in Layered Soils and Redistribution Cases 119
Introduction 119
Redistribution and Reinfiltration 119
Layered Soils 122
8. Field Measurements of Infiltration Parameters 135
Introduction 135
Drip Infiltrometers 136
Ring Infiltrometers 138
Permeameters 141
9. Infiltration and Runoff on a Hillslope 159
Introduction 159
General Surface Flow and Infiltration Interaction 160
Effect of Surface Relief on Surface Water Losses 162
Infiltration Heterogeneity and Runoff 164
Appendices 185
I. Derivation of the Infiltration Integral from Richards' Equation 185
II. Attenuation of Characteristic Kinematic Shock in Soil Water Flow 187
III. Finite Difference Solution Method for Richards' Equation 190
List of Symbols and Abbreviations 199
References 203
Index 211
1. Introduction 1
Brief History 1
Runoff Mechanisms 3
Engineering and Scientific Approaches to Hydrology 4
Objective and Scope of this Work 5
2. Basic Porous Media Hydraulics 7
Capillary Properties of Soil Water 7
Porous Media 9
Darcy's Law 12
Hydraulic Characteristics of Porous Media 13
Steady Flow Soil Water Relations 14
Functional Representation of Hydraulic Characteristics 18
3. Some Essentials of One-Dimensional Porous Media Dynamics 25
Introduction 25
Absorption: Gravity-Free Intake 27
Infiltration: Vertical Flow 31
Mathematical Approximations for Soil Water Flow 34
Approximations for Soil Hydraulic Characteristics 36
4. A Realistic Integrable Nonlinear Model for Transient Unsaturated Flow 41
Introduction 41
Integrable Forms of Richards' Equation' 43
Solution of Nonlinear Diffusion Equation 46
Required Forms for Soil Characteristics 49
Solution of the Integrable Form 55
Discussion and Summary 60
5. Absorption and Infiltration Relations and the Infiltrability-Depth
Approximation 63
Introduction 63
Absorption 65
Infiltration 73
Stability of Flux-ConcentrationR elation 85
6. Infiltrability Models: Comparisons and Application 97
Introduction 97
Timing of Pending 98
Time Explicit Approximations 108
Applying the Infiltrability Models to Variable Rainfall Patterns 114
7. Applying Infiltration Models in Layered Soils and Redistribution Cases 119
Introduction 119
Redistribution and Reinfiltration 119
Layered Soils 122
8. Field Measurements of Infiltration Parameters 135
Introduction 135
Drip Infiltrometers 136
Ring Infiltrometers 138
Permeameters 141
9. Infiltration and Runoff on a Hillslope 159
Introduction 159
General Surface Flow and Infiltration Interaction 160
Effect of Surface Relief on Surface Water Losses 162
Infiltration Heterogeneity and Runoff 164
Appendices 185
I. Derivation of the Infiltration Integral from Richards' Equation 185
II. Attenuation of Characteristic Kinematic Shock in Soil Water Flow 187
III. Finite Difference Solution Method for Richards' Equation 190
List of Symbols and Abbreviations 199
References 203
Index 211