WMOD00394

• Contract/Permit #: 14-06-D-6467
• Project Name: Weather Modification Pilot Project
• Title: Weather Modification - A Pilot Project - San Juan Mountains, Colorado River Basin - Final Report
• Date: 2/1/1974
• Weather Modification - Doc Type: Report

SECTION

LIST OF TABLES .

LIST OF FIGURES.

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TAB L E

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CON TEN T S

PAGE

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LIST OF APPENDICES

1

I. INTRODUCTION.

2

II. PURPOSE OF THE SAN JUN~ PILOT PROJECT

III. SCIENTIFIC AND TECHNOLOGICAL BASIS FOR THE PILOT

PROJECT . . . . . . . . . . . . . . . .

3

A. The Physical Basis for Seeding Orographic Clouds 3

B. The Experimental Basis of Seeding Orographic Clouds' 6

C.

D.

1.

~hanges in Precipitation for Specific
Weather Situations. . . . . . . .
Changes in Total Precipitation. . . .
Changes in Streamflow . . . . . . . .
Cloud Seeding Effects on Precipitation
Intensity and Duration

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2.
3.
4.

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Economic Considerations. . .

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Summary of Background Basis for Pilot: Project

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IV. DESIGN CONSIDERATION

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V. PILOT PROJ~CT DESIGN

A.

Cloud Seeding Hypothesis or Model.

B.

C.

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Site Selection

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Experimental Design

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1.
2.
3.
4.

Randomization
Experimental Period
Experimental Unit
Declaration of Experimental Days
a. Forecast of Orographic Clouds and/or
Precipitation . . . . .
b. Forecast of Weather Modification
Potential . . . . . . . . . . . . .
c. Evaluation of Possible Hazards and
Disbenefits .
1. Flood iug . . . . . . . .
2. Ava1anehes.......
3. Economic Considerations

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5.

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Duration of Experiment . . . . . .

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