WMOD00302 ‎(2)‎

• Contract/Permit #: 1-07-81-V0169
• Title: Development of Contingency Plans and Scientific Background Studies for Applying Weather Modification During Drought Periods in Utah
• Date: 12/1/1982
• State: UT
• Weather Modification - Doc Type: Report

The aircraft should be a turbocharged, de-iced twin,

such as the Piper Aztec.

Seeding equipment would consist

of continuous burging" wing-tip silver iodide dispensers, as
well as vertical-fall silver iodide pyrotechnic racks. Possible
flighT Tracks are shown in Figure 5.6.

Since rawinsonde soundings are ~ade twice daily at Salt
Lake CiLY, no projecL-specific rawinsondes are recommended.
The Salt Lake City sounding data could be supplemented by

aircraf~ soundings.
Se ct io n 5. 1. 4 .

Other data requiremen~s are listed in

Cost estimates for the design were prepared for both
~: and ~2 type operations (~ovember to March for Ml and ~ovember

to \!a v fo r ~12).

Costs are summarized in Table 5.4.

Note:

t~e loaded total includes a general and administrative fee

(15';) a~d profit (10~).

Based on the modeling studies, the

expected seeding incremenT is 15 percent (M2).

TABLE 5.4

Cost Estimates For Standby Seeding Operations
In The Western Division (Northern Part)

COST Estimate (1000's of Dollars)

Exuense
~

Ml M2
----
$ 46 $ 65
40 50
0 0
28 41
0 0
14 20

Labor
Aircraft
Ground Seeding ~etwork
Seeding Reimbursables
Rawi nso nde
Offi ce Data,
Living Allowa3ce
Travel
Reports

Sub-Total
Loaded Total

0+
1

1

1

S129
S163

S178
5225

5-19