WMOD00284

• Applicant: Thompson, J.R., G.W. Wilderson, and D.A. Griffith, North American Weather Consultants
• Sponsor Name: USBR
• Title: Cloud Seeding Data Collection, and Analysis Assoc. with the Colo River Augmentation Demonstration Program
• Prepared For: USBR, Divison of Atmospheric Research
• Prepared By: Thompson, Wilderson, Griffith
• Date: 12/1/1987
• State: AZ
• Weather Modification - Doc Type: Scientific Study

Section
1.0
2.0
2.1
2.2
2.3
2.4
3.0
3.1
3.2
4.0
4.1
4.2
4.3
4.4
4.5
4.6
5.0

TABLE OF CONTENTS

INTRODUCTION...................................

PROJECT DESIGN (Arizona).......................

Experimental Area...........................,.,
Objectives and Approach for the 1986-87 Field

Season. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment and Facilities..,~...................
Equipment and Data Collection Summary.,..,.,."

DATA REDUCTION AND ANALySES....................

Preliminary Winter storm Climatology of the
Arizona Mogollon Rim...........................
Arizona Precipitation During the Field Season..

SULFUR HEXAFLUORIDE TRACER EXPERIMENTS.........

Design of Experiments..,...,.............,.,."

Description of Equipment.............,...,.....

Operations Summary.........,.............,..",

Data Reduction.................................

Test Cases................................. _. . . .

Summary and Conclusions Regarding the Transport
and Diffusion Experiments......,......,.,...."

CONCLUSIONS AND RECOMMENDATIONS FOR FUTURE WORK

Acknowledgements
References

Tables

2-1
3-1

Precipitation Gauge Locations and Elevations...
Summary of Weather Episodes, January 15 -

March 17,1987.........-...................

3-2 Monthly Precipitation Totals.,...........,..",
3-3 Storm Durations Per Gauge Site...........,.....
3-4 storm Precipitation Totals Per Gauge Site.,....
3-5 Mingus Mountains and 6-Gauge storm Precipitation
Totals and Related Statistics.............
3-6 Cumulative Percentage Comparison of Episode
Statistics for Arizona Mogollon Rim and
Colorado Grand Mesa Areas.................

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Page

1-1
2-1

2-1

2-2
2-6
2-9

3-1

3-3
3-20

4-1

4-1
4-5
4-6
4-13
4-18

4-93

5-1

2-9

3-11
3-21
3-26
3-28

3-30

3-44

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