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

,
I
I
,I
I
I
I
I
I
I
I
I
I
,
I
t
t
I
I

Tables

3-7

3-8

3-9

4-1
4-2
4-3
4-4
4-5

4-6

4-7

4-8

4-9
4-10
4-11
4-12
4-13
4-14

4-15

Figures

2.1
3.1
3.2
3.3

3.4
4.1
4.2
4.3

4.4

4.5

Table of Contents Continued

Cumulative Percentage Comparison of Episode
statistics for Arizona Mogollon Rim Areas,
Episodes of 1 Hour Minimum Vs.
3 Hour Minimum ...........................

Number of Episodes Per storm at the Network
Precipitation Gauge sites.................
Precipitation Gauge Summary, Arizona 1987 Field

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

Continuous Tracer Analyzer Specifications......

Summary of SF6 Flights.........................

Arizona SF6 Release Points.....................

SF6 Releases...................................

Pre and Post-flight Calibrations with Associated
Correction Equation Coefficients..........
January 30, 1987 SF6 & Meteorological

Flight Data...............................

February 3, 1987 SF6 & Meteorological Flight

Da ta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

February 15, 1987 SF6 & Meteorological Flight

Da ta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~ . . . . .

March 2, 1987 SF6 & Meteorological Flight Data
March 5, 1987 SF6 & Meteorological Flight Data
March 9, 1987 SF6 & Meteorological Flight Data
March 15, 1987 SF6 & Meteorological Flight Data
March 16, 1987 SF6 & Meteorological Flight Data
Summary of SF6 Derived Plume Tops and Associated
Rawinsonde and In Situ Meteorological

Conditions............................... .

Vertical Dispersion Parameters Associated

wit h Plume s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mogollon Rim Research Area.....................
Cumulative Distributions of Hourly Precipitation

Cumulative Distributions of Daily Precipitation

Diurnal Variation of Precipitation Amounts

and Frequencies...........................
Cumulative Distributions for Episode Duration..

SF6 Analyzer Calibration Response Curves.......

Continuous Analyzer Response Time.....,........

Example of an SF6 Plume Detected on a Flight

on January 30, 1987.......................
Example of the Detectability of Weak SF6 Plumes

from a Flight on February 3, 1987.........

Example SF6 Plume Measured with the NAWC

Continuous Analyzer.............,...."...
11

Page

3-47

3-51

3-54
4-7
4-11
4-12
4-12

4-15

4-23

4-43

4-49
4-56
4-63
4-69
4-84
4-92

4-97

4-98

2-3
3-33
3-36

3-38
3-42
4-4
4-8

4-9

4-10

4-16