WSP11706

• File Number: 8271.300
• Description: Colorado River Basin Salinity Control Program - General Information and Publications-Reports
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 6/1/1980
• Title: Development of Procedures to Evaluate Salinity Management Strategies in Irrigation Return Flows
• Water Supply Pro - Doc Type: Report/Study

Project Background
Purpose . . .
Scope . . . . . . .

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TABLE OF CONTENTS

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CHAPTER 1. INTRODUCTION

CHAPTER 2. REVIEW OF PROCESSES CONTRIBUTING
TO SALINITY IN RIVER SYSTEMS

Processes occurring in the soil water system
Mineral weathering in the groundwater system
Salt loading in streams . . . .
Empirical salt loading equation

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Introduction

Chemical processes .........
Surface-groundwater interrelationships
Salt pickup phenomena

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CHAPTER 3, REVIEW OF HYDROSALINITY MODELS

Introduction . . . . . . .
General Description of Models . . . .

Water and salt budget models . .
Models depicting chemical processes

Assumptions in Salinity Modeling

Solute flow processes . . . .
Surface groundwater interrelationships
Salt pickup phenomena . . . .

Limitations of the Existing Models

Discussion

CHAPTER 4. DEVELOPMENT AND TESTING OF A NEW
HYDROSALINITY MODEL

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lnbasin use processes
Assumptions . . . . .

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Introduction
Model Development . . . . .
Modeling Concepts . . . . .

Sensitivity to canal seepage.
Sensitivity to canal diversions
Sensitivity to tail water runoff
Sensitivity to operational spills
Sensitivity of farm application efficiency
Sensitivity to system identification. . .

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Modeling Procedures . . . . . .
Hydrology and Salt Model Interface
Model Calibration
Sensitivity Analysis

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