Table Of Contents

Chapter.Page

Table Of Contents	0.i

Preface and Acknowledgments	0.iii

INTRODUCTION	1.v

How to Use This Document	1.1

Minimum Computer Requirements	1.3

Installation	1.3

An Overview of the Wind Erosion Prediction System	1.5

Quick Start for WEPS 1.0	1.15

INTERFACE REFERENCE	3.1

WEPS Interface Main Screen	2.1

Toolbars	2.3

Describing the Field and Barriers	2.15

Wind Barrier Information	2.16

Simulation Region Information	2.17

Choosing a Location	2.19

Choosing and Editing a Management Rotation	2.21

Choosing a Soil	2.39

Making a WEPS Run	2.49

WEPS Output	2.55

USING WEPS IN CONSERVATION PLANNING	3.1

Interpreting Outputs	3.1

Special Field Configurations	3.13

Using Barriers for Erosion Control in WEPS	3.15

Exercises	3.19

Introduction: Evaluating Wind Erosion Problems with WEPS	3.19

Exercise 1 - Wisconsin: A Basic Simulation	3.23

Exercise 2 - Texas: Add a Crop to a Rotation	3.33

Exercise 3 - South Dakota: Templates and Add Irrigation	3.43

Exercise 4 - Minnesota: Simulate a Cover Crop and Windbreak	3.49

Exercise 5 - Washington: Alfalfa Hay, Editing, and More Irrigation	3.59

Exercise 6 - New York: Tomato, Rye Cover Crop, and Plastic Mulch
3.67

Exercise 7 - New Mexico: Irrigated Corn Silage, Add Manure and a Winter Forage Crop	3.75

Exercise 8 - Critical Dominate Soil	3.85

Exercise 9 - Selecting the correct simulation region, X-length and Y-length
3.87

APPENDICES	5.1

Interface Implementation and Science Model	5.1

Interface	5.1

Main Program	5.3

Weather Submodel and Databases	5.5

Hydrology Submodel	5.7

Management Submodel	5.11

Crop Submodel	5.17

Residue Decomposition Submodel	5.19

Soil Submodel	5.21

Erosion Submodel	5.25

Flags and Command Line Options	5.29

Submodel Report Flags	5.29

Command Line Options	5.30

Using WEPS with Measured Data	5.35

Introduction	5.35

Run File	5.36

Weather Files	5.43

Soil File	5.48

Management File	5.60

Stand-alone Erosion Submodel	5.60

"HOW TO" GUIDES	6.1

Barriers	6.1

Strip Cropping (Field Design)	6.9

Crop Database Record Development	6.39

Management Operation Database Record Development	6.77

INDEX	4.103