WMOD00285 ‎(2)‎

• Title: Feasibility Study of Wintertime Cloud Seeding to Augment Arizona Water Supplies
• Date: 1/1/1987
• State: AZ
• Weather Modification - Doc Type: Report

I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I

Table 4. - Daily precipitation frequencies for each of a wet, normal and dry
winter at station groups GP3 and GP4 and single station ST2.*

PRECIPITATION FREQUENCY

Station
group GP3 Winter Condition
Precipitation
range (in) Wet (1982-83) Norm (1981-82 ) Dry (1980-81 )
0 92 130 127
>0 - 0.2 54 34 38
>0.2 - 0.4 21 7 10
>0.4 - 0.6 9 3 3
>0.6 - 0.8 1 1 1
> 0.8 - 1.0 4 4 2
> 1.0 - 1.5 2
>1.5 - 2.0
>2.0 - 2.5
Total cases 181 181 181
Station ST2
0 147 156 160
>0 - 0.2 10 11 9
>0.2 - 0.4 3 8 6
>0.4 - 0.6 3 1 2
>0.6 - 0.8 7 2 0
>0.8 - 1.0 2 0 1
>1.0 - 1.5 3 1 2
>1.5 - 2.0 1 1 1
>2.0 - 2.5 2
>2.5 - 3.0 1
Total 179 180 181
Group GP4
0 122 143 143
>0 - 0.2 37 25 29
>0.2 - 0.4 9 6 4
>0.4 - 0.6 2 5 2
>0.6 - 0.8 8 0 1
>0.8 - 1.0 2 2 2
> 1.0 - 1.5 0
>1.5 - 2.0 1
Total 181 181 ~

~

*Precipitation measurements were generally taken at 1800 local.

34